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How to Charge and Know the Battery Status of Samsung Galaxy S4

Edited by Leomar Umpad, Charmed, Eng, Jerry Rivers and 11 others

If you are using your Samsung Galaxy S4 for the first time, you are required to fully charge it. You can charge your device using the supplied charger or, by using a USB cable, and connecting it to a computer. Charging by the standard supplied charger would normally be faster, compared to charging by connecting to a computer via a USB cable.

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How to Use the Samsung Galaxy S4

This is a part of the Howik on how to use the Samsung Galaxy S4. Please follow the link hereunder to go to the Master Howik USE SAMSUNG GALAXY S4.

Charging Using the Charger

Using the supplied USB Power Adapter, first time full charge time, may take 3-4 hours. Please find below the standard steps to charge using the USB Power Adapter charger:

  1. 1
    Connect the USB cable to the USB Power Adapter.

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  2. 2
    Plug the USB cable mini jack into the mini USB jack of your Samsung Galaxy S4.

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  3. 3
    Plug your charger into the power supply socket.

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  4. 4
    Wait for your phone to be fully charged, indicated by a continuous lit green led.

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  5. 5
    Unplug the cable from your Samsung Galaxy S4.

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  6. 6
    Unplug the charger from the power supply socket.

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  7. 7
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How to Charge in the Car

You can charge your Galaxy S4 in your car by using the Retractable Car Charger for Samsung S offered at Amazon: http://www.amazon.com/Retractable-Charger-Samsung-Galaxy-One-Touch/dp/998554627X . It's simple to use with its one-touch button system.

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Follow these steps for recharging your Samsung Galaxy S4 in your vehicle:

  1. 1
    Plug the "round" end into your cigarette receptacle.

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  2. 2
    Connect the retractable cord's mini jack into mini jack of your Galaxy S4.

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  3. 3
    Once charged the battery icon on your Galaxy will have a full and continuous green light.

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  4. 4
    Unplug the retractable cord first from your Samsung Galaxy S4.

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  5. 5
    Now unplug from your cigarette lighter receptacle.

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The cord extends to 3.5 feet, and charges fast according to many customer reviews.

Charging Galaxy s4 using a Computer via USB Cable

Some people wonder if it's really possible to charge their Galaxy S4 using a computer. Well, yes you can! It is possible to charge your Samsung Galaxy S4 through a computer. It's just as easy as charging with your usual AC charger.

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Charging using a computer can be convenient but, you don't want to be far away from your phone when it's charging. The only problem is that, due to the low power supply, it takes a little longer compared to normal main AC charging. Please find below the standard steps to charge using the computer:

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  1. 1
    Plug the USB cable mini jack into the Mini USB jack of your Samsung Galaxy S4.

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  2. 2
    Plug the other end of the USB Cable into a USB port of a computer.

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  3. 3
    Wait for your phone to be fully charged. (It will notify you.)

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  4. 4
    Unplug the USB cable from your Samsung Galaxy S4.

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  5. 5
    Unplug the USB cable from the computer USB port.

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Battery Status while charging

While charging, your battery icon will change to indicate that it is currently being charged. Five circles on a battery icon means that your battery is still charging. When it is fully charged, it will show a battery with a 100% on it. Disconnect your charger when you see this to save electricity, and to keep your battery from overcharging.

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Does Overcharging Cause any Harm

Your Samsung Galaxy S4 has an auto shut-off once it is charged. However, current will still flow through it. You have a "smart" lithium ion battery that will neither overcharge nor over-discharge. However, prevent any type of cover over your Galaxy S4 while charging, and keep it away from temperatures over 90 degrees F (32 celsius). There needs to be air below these temperatures, circulating around your Samsung Galaxy S4, or the battery will have a short life.

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Helping to Keep Your Battery In Good Shape

To give your battery the longest life possible, you need follow a few simple steps:

  1. 1
    Close all unnecessary applications when they are not in use.

    Use your task manager to view all active applications.

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  2. 2
    Do not completely deplete the life of your battery and charge frequently.

    Only deplete the charge once a month and then fully charge before using the battery again.

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  3. 3
    Deactivate Bluetooth when not in use.

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  4. 4
    Deactivate WiFi when not in use.

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  5. 5
    Switch your device to “Sleep Mode” when it is not in use.

    Auto-sleep may be turned on, but you can save even more power by pressing the Power Button once (which puts the phone in sleep mode) when you are not using your phone.

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  6. 6
    Deactivate Auto-Syncing of applications.

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  7. 7
    Decrease the Backlight Time of your device.

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  8. 8
    Decrease the display brightness.

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What is the Normal Charging Time of S4?

There are a couple of factors to consider in determining the “normal” charging time of a Samsung Galaxy S4. It is also necessary to note that there are different ways to charge an S4 phone, and each presents distinct charging ramifications. Majority of this section intends to delve into the intricacies of Samsung Galaxy S4 charging. But if you lack the time or interest of knowing the basic underpinnings of how Galaxy S4 charging works, you can skip to the "Bottom Line" subsection and find a blunt answer to the question at hand.

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Galaxy S4 Charging Quick Facts

  1. 1
    Samsung Galaxy S4 battery is listed at 2,600 mAH (milliamps/hour)

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  2. 2
    The charger and the handset undergo a process called “negotiation” wherein the amount of power transmitted between the charger and the phone is identified.

    There is no definite standard of this negotiation process as this is subject to proprietary preferences.

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  3. 3
    Galaxy S4 only takes the current it needs – nothing more.

    So even if a charger is deemed to be capable of delivering a maximum current of 2A, it will still depend on the result of the negotiation process whether how much actual current the phone will draw from the charger.

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  4. 4
    Lithium ion battery–powered phones usually employ a mechanism that slows down the charging rate as the battery approaches its full capacity.

    This is done for battery longevity purposes.

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S4 Charging Time Using Samsung Wall Charger

Wall chargers are capable of delivering outputs ranging from 0.5A to 2.1A. The Galaxy S4 stock charger comes with 2A amperage. In theory, a totally dried out 2,600 mAH battery should be able to load up in less than 2 hours using a 2A charger. However, the Galaxy S4 uses Lithium-ion batteries so it may employ proprietary mechanisms that promote battery longevity but at the expense of a slight increase in charging time.

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S4 Charging Time Using PC's USB Port

A computer’s USB 2.0 port usually outputs 0.5A. So basically, a Galaxy S4 phone normally charges slower on it as compared to the Samsung stock wall charger. The charging speed takes a considerable increase if a USB 3.0 port is used which clocks at 0.9A. One factor that could affect these rates is the type of USB cable used. Substandard cables are usually “unshielded” which basically lead to a much slower transmission of current.

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Noteworthy Third-Party Charging Units for Galaxy S4

The Practical Meter is one great third-party tool to have when it comes to charging Galaxy S4 or any other smartphones for that matter. This neat little tool is a dongle that is attached in between the USB interfaces of the power source and the device. The Practical Meter is capable of identifying and displaying the amount of current being transmitted in the charging process as well as providing a way to determine as to when the charging should complete. Most importantly, the Practical Meter can override the “negotiating” process between the USB port of the power source and the Galaxy S4 such that the maximum possible charging speed is achieved.

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Troubleshooting and FAQ's

Can Samsung S4 use normal mini USB cable or does the S4 have proprietary cable for charging?

Unlike Apple, Samsung does not natively limit its devices with proprietary hardware or software boundaries. A standard mini USB cable will work for charging or data transfer purposes regardless of the brand, granted, of course, that the USB cable is not defective.

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The Bottom Line

  1. 1
    The normal charging time of Galaxy S4 is not definite.

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  2. 2
    Theoretically, it should completely charge somewhere near a 2–hour time frame coming off a totally empty state.

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  3. 3
    Galaxy S4 charges slower via PC USB port as compared to a wall charger.

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  4. 4
    Practical Meter – a third–party charging tool – could help improve Galaxy S4 charging speed as well as determine the amount of current S4 draws from a power source.

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  5. 5
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Samsung Galaxy phone taking longer to charge than before

For the first 3 months, its takes 2 hours for my s4 to be fully charged.But now it takes 3 to 4 hours to be fully charged. Is this normal? No this is not normal. There are two possible causes.

  1. 1
    A Battery Draining Application -- You have installed a battery draining app or widget.

    When your phone is being charged it, the app is running in the background consuming a large amount of the power that would otherwise be devoted to charging the battery. Sadly samsung/android apps don't go through the stringent power testing that iphone apps do before being made available for download in the app store. Hence many android / Samsung apps kill your battery life. Even when your phone is off these apps can run regularly or sometimes all the time.

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  2. 2
    A Bad / Defective Battery -- This can happen to a previously good battery at any time.

    Often it happens as your battery ages, but sometimes dropping your phone or a defect in the battery can cause the batteries overall capacity to be diminished. Batteries are made up of several small cells joined together. If one or more of those cells goes bad the battery will still produce the same voltage, but the amps (output power) are reduced. Thus you experience diminished battery life. The charging time is particularly affected by a bad cell as it often drains or hampers charging of the remaining good cells.

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  3. 3
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The great news is that you can get cheap Lithium Ion batteries on ebay from China. This author has ordered regular replacement, and the upgraded batteries with a higher amperage than the original phone comes with. I paid very little and was impressed at the performance. Having a spare battery is a good idea anyway. I think I paid less than $30 for mine. It did take about a month for the one from China to arrive though. But for the price I can't complain.

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How often should I charge the battery of my Samsung Galaxy S4?

Since Samsung Galaxy S4 makes use of a Lithium Ion or Li-on battery, you need to charge it as soon as the battery is running low, as often as needed. If your phone discharges every day, then charge it every day.

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Charging Myths - TRUE & FALSE

  1. 1
    Do not wait until it is fully discharged or at 0 percent.

    Because this will deplete the battery faster. - FALSE - THIS WILL NOT HURT YOUR PHONE UNLESS IT IS LEFT OUTSIDE IN THIS STATE TO FREEZE

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  2. 2
    Overcharging it can also harm your battery.

    If your battery is already at 100 percent, unplug the charger from your device and disconnect it from the power outlet. - FALSE - OVERCHARGING IS NOT POSSIBLE SINCE THE PHONE AUTOMATICALLY STOPS CHARGING THE PHONE WHEN IT IS FULL.

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  3. 3
    Is it best to charge it during the daytime.

    Or when you are awake so that you can keep track when it is already fully charged. - FALSE - SEE ABOVE REASON

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  4. 4
    If you have to charge your battery you can do it even if it is still on a high percentage.

    This will not harm the battery. - TRUE

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  5. 5
    Do not keep your phone’s battery in a fully discharged state for a long time.

    Because this will decrease its useful life. TRUE - ESPECIALLY WHEN COLD. THE BATTERY COULD FREEZE WHEN FULLY DISCHARGED AND DAMAGE IT.

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  6. 6
    Charging your battery daily can lengthen its life.

    - FALSE - A LITHIUM ION BATTERY HAS A LIMITED NUMBER OF CHARGES UNTIL IT FAILS. CHARGE AS NEEDED.

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  7. 7
    You can fully drain the battery once a month to calibrate the battery.

    Do not do it any more often than that. - TRUE THIS DOES HELP.

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  8. 8
    Avoid overheating when charging the battery.

    Make sure there is good ventilation in the room where you charge your phone. - FALSE - LITHIUM ION BATTERIES ARE CLOSED. NO GASES ARE RELEASED DURING CHARGING. - ALSO OVERCHARGING IS NOT POSSIBLE BECAUSE THE PHONE DETECTS A FULL CHARGE AND STOPS SENDING CURRENT TO THE BATTERY.

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Do i need to charge my s4 before using for first time?

The battery that comes with your Samsung Galaxy S4 is already pre-charged, so you can use it out of the box. New batteries do not need to be charged before you can make use of it. You also do not need to go through the initial charging unlike those old batteries that require you to charge them overnight. Lithium ion batteries will attain their maximum performance after completing several charge and drain cycles. But do not let your battery drain to a full empty state too often because this may decrease the performance of your battery. If you like to attain a longer life for your battery, it is advised that you have to charge it often without waiting for it to be fully drained or up to 0% level.

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Users' questions:

How to stop charging when battery full for Samsung S4

When your battery indicator is showing a 100%, or if the battery is full green, then your phone has been fully-charged. In order to conserve energy, you need to stop your phone from charging. You can do this by removing the charging terminal of the charger from your phone's charging port. Your phone is set to automatically stop when battery is at 100%. However, it is always better to stop the phone from being charged because of the following:

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  1. 1
    If the phone's ability to stop charging at full levels malfunctions, then it won't stop charging even at 100% and may cause overcharging.

    Though chances are slim that you will overcharged your battery, it is always best to stay on the safe-side.

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  2. 2
    An overcharged battery will have a shorter life.

    Again, there is a slim chance that you will overcharge your battery but if by chance you are part of the unlucky minority, and you have a faulty phone charging system, then you could risk overcharging. Cut-out that risk by making sure that you remove the power source once you have a full battery charge.

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  3. 3
    Problems on the power supply like brownouts and low voltage may damage the charger and the phone.

    Any unexpected, sudden or unstable power source could damage your phone's battery. Plugging out your phone after charging reduces your chances of being exposed to such unnecessary risk.

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Charging speed slows down in S4

There are many possible reasons why speed of charging your Galaxy S4 slows down. It could be an issue with the phone, the charger, the power source or the battery itself. These are the following things that you need to check:

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  1. 1
    Check your power source.

    You may have a source that has a low voltage output.  

    1. You may be having a problem with the power supply in your area. If the power levels in your area is constantly fluctuating, then it can cause longer charging time. If this is your problem, consider buying a voltage regulator. Voltage regulators works by maintaining a constant voltage level so that you will be charging at a constant level. The regulator can also be used for other electrical items so this item is a must if you are on an area with erratic voltage levels.
    2. Your current power source may be the computer's USB port as against the previous charges where you directed it from the power outlet. As discussed in this article, you would have to deal with longer charging times if you are using a computer's USB port to charge your device since a USB port has a low voltage output as compared to power outlets. Normally, a USB give a charging current of about 500mA while normal power supplies give out 1A. This is the reason why it usually takes twice as long it is to charge using the computer's USB port than charging it directly to the power source using a charger.
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  2. 2
    Check your charger, it may be defective or not functioning at the optimum levels.

    Your charger could be the culprit. It may have some defective components that's causing you to charge slow. To know if this is the case, do these:  

    1. When you are at 50%, reboot your phone. You can reboot your phone by pressing and holding the Power button and tapping on Restart. Reboot is important to make sure that you are running the same set of applications as we are doing a charging-comparison test.
    2. Once your phone restarts, normally charge your phone using your charger and take note of the length of time that it took to get it to 100% battery level.
    3. Use your phone normally and wait for it to reach 50% level again.
    4. Reboot your phone. Make sure that you do not manually start any applications yet.
    5. Borrow a similar charger from a friend or someone you knew. Confirm with the owner that the charger is functioning well. Charge your phone the same way and take note of the time to complete the charge.
    6. Compare the time. If the other charger charges by an hour faster, then there is a problem with your charger. If the difference is a 15 minutes and less, then your charger is still on good condition.
    7. If you have confirmed that the problem is with your charger, buy a new one. Do not attempt to fix it as you will be risking your phone for electrical damage.
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  3. 3
    Check if your battery is still in good condition.

    Your battery may be defective and needs replacement. To check if this is the case, do these:  

    1. When you are at 50%, reboot your phone.
    2. Once your phone restarts, normally charge your phone using your charger and take note of the length of time that it took to get it to 100% battery level.
    3. Use your phone normally and wait for it to reach 50% level again.
    4. Reboot your phone. Make sure that you do not manually start any applications yet.
    5. Borrow a similar battery from a friend or someone you knew. Confirm with the owner that the batter is in good health. Charge your phone the same way and take note of the time to complete the charge.
    6. Compare the time. If the other charger charges by an hour faster, then there is a problem with your battery. If the difference is a 15 minutes and less, then your battery is still be good condition.
    7. Once confirmed that it is a problem with the battery, buy a new battery. Do not attempt to do some work-around with your defective battery as you are risking your phone for bigger problems.
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  4. 4
    Background applications may be running that are eating up your battery juice.

    If this is the case, the following tips can help your charging time faster:  

    1. Close all unused applications while you are charging. Take note that most applications do not terminate when you press the back button or the Home Menu, they merely minimize. To make sure that unused applications are closed, press and hold the Power button until you will be prompted with the task manager. Tap on the active application icon (a pie graph icon) located on the lower-right part of your screen. On the active applications tab, tap on the End button beside the application name to end the process.
    2. Turn off unnecessary connectivity features as these are great battery consumers and can relevantly delay charging time. If you are not using your Bluetooth, Wi-Fi, GPS and GPRS connection, you may want to turn them off for faster charging time.
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  5. 5
    Check if your phone is causing the slow charging.

    Your phone has a built-in charging components on it that is responsible for regulating the charging process. If these components are defective, you may experience slow charging or no charging at all. If you have confirmed that the problem is not with the power source, the battery, the charger, or some active applications, then there could be a problem with your phone's charging system. If this is the case, have your phone checked by a qualified Samsung technician. Make sure to check if you are still covered by the warranty to save on cost of repairs.

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I forgot to unplug my phone in my house it's already 48 hours right now,what will be happened

Samsung Galaxy S4 has a function to turn off the charging when the battery is at full levels. However, as time goes by, battery would slowly drain and would automatically by charged to full. What will happen here is that the phone will go into multiple and quick cycles of charging and this is not good for the battery. However, a single 48-hour incident may not do that much damage. Just make sure that you unplug it the soonest time possible. Chances of your phone exploding resulting to fire are fairly slim but since it is an electronic device, the possibilities cannot be completely ruled out. If you left your phone at home while plugged in, this is what you can do.

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  1. 1
    Ask the help of someone who has access to your house.

    This is the first thing that you should do. Think of those trustworthy people who have the keys or know of a way to get into your house. Ask that someone to go into your house and unplug the phone from the charge. This is the most convenient and practical way to do. If this is not possible, then you may try of the other suggestions.

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  2. 2
    Get home fast.

    If you can get home by yourself, do it as soon as possible. If you have other appointments, check if it can be rescheduled and go home. If there is no way to reschedule and appointment, make sure to go home the moment you are done with it. Postpone any plans of dropping by the grocery to get your weekly needs, that can wait.

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  3. 3
    Ask help from authorities.

    Only do this option when the first two suggestions are not possible. Like you are out of the country or into something very important that you cannot leave any time soon. Call the police and ask their help for someone to get into your house and remove the charger plugged. You can also call the electric company and ask if it is possible to temporarily remove power from your house.

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  • Remember, you are liable to any damaged cause onto other people if, by chance, any accident or incident may happen due to your carelessness.

How long does it take to charge the battery of my Samsung Galaxy S4 for the first time?

Normally, a new phone with a new battery may charge from 3-4 hours using the supplied authentic charger. However, this can only be a rough estimate since there are a lot of factors to consider. For one, you may have used the phone from the moment you bought it to the time you start charging it. The way you used your phone before charging can affect the battery levels of the phone resulting to a longer initial charge. The longer you used your phone before charging, the lower its battery percentage. Opened applications and features used while charging will also affect the length it takes to completely charge your device. If you have turned your Bluetooth and network data on, enabled tethering on your device, or enable the Wi-Fi, then it will take a longer time for you to charge as these features consume battery power. Also, if you are charging through USB instead through the AC socket, then initial charging time will be slower and may take 6-8 hours.

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How long is the charging time of Samsung Galaxy S4

As mentioned on the preceding question above, there are some factors that can affect the charging time of your Samsung Galaxy S4. Using the supplied charger, charging your Samsung Galaxy S4 from 50% to full would normally take about 2-3 hours. The following factors will affect the charging time of your Samsung Galaxy S4:

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  1. 1
    Battery condition.

    Your battery health is a huge factor in determining the charging time of your Galaxy S4. A battery in good condition will have the normal charging time. A battery on bad health will have a lower charging time. However, do not let this fool you. Lower charging time for a defective battery means that it will also take it faster to lose battery juice. This is because a defective battery will only hold less juice than a healthy battery. Thus, it may appear that your phone is fully charged in a short time when the truth is, battery capacity had just been lessen.

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  2. 2
    Charger used.

    The type of charger used during charging will affect your Galaxy S4's charging time. This is because some chargers give a higher ampere output than other chargers. The higher is the Amp output of a charger, the faster it will take it to charge your phone.

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  3. 3
    Power source.

    The power source will also determine the charging time of Samsung Galaxy S4. A phone charging through a USB source will charge slower that one on an AC power source. This is because USB gives a lower charging output than the AC socket. Also, USB charging is also not constant. A USB 3.0 may charge faster than a USB 2.0 port as long as the right cable is used.

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  4. 4
    Device usage.

    Applications opened, radios used and screen usage will cause a longer time for your Samsung Galaxy S4. This is because any usage on your device will consume battery power. If you can avoid using your device while charging, then do it. This can help extend your battery life and lessen charging time for your battery.

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How many Amps do I need to charge my Samsung Galaxy S4?

Samsung Galaxy S4 will charge at a charging input of as low as 0.5A to 3.0A. The higher the Amp rating of your charging, the faster it will take for your device to charge. If you can, consider getting a 3.0A output charger for faster charging time. Also, take note aside from the longer charging time, charging at 0.5A and 0.75A may still deplete your battery especially if you are using your device's radio functions. Having the screen on while charging at 1A may still deplete your phone's battery even if the device is plugged.

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When should I charge my Samsung Galaxy S4?

You should charge your Galaxy S4 whenever its battery indicator shows a percentage a little less than 50%. This is the optimum minimum charging percentage of your battery as it allows your battery to have longer charging cycles. Avoid charging your battery at lower than 10% battery level, or worse, when the battery has been depleted already. Charging your battery at very low levels will shorten its useful life.

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How to tell when Samsung Galaxy S4 is done charging?

You can tell when your Galaxy S4 has been fully charged when the battery icon indicator on the upper right part of your screen turns to a full green. If your battery icon has a percentage, a label of 100% on it means that your Samsung Galaxy S4 is done charging. Your device will also give a notice that it has been fully charged and will ask you to remove it from the charger. Also, even if the charger is still attached to your phone, charging will automatically stop at 100%. This is to prevent possible overcharging of the battery and overheat that may lead to damage in your device.

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How to perform a fast charge on Samsung Galaxy S4

Is it good to let Samsung Galaxy S4 battery run down completely?

You should not allow your Samsung Galaxy S4's battery to completely run down and drain. This is because drained batteries will fewer charging cycles before the battery gets defective. It is always advisable to charge your device at 50% or at a level close to 50%. This will ensure that you get the most out of your battery's useful life. Allowing the battery to deplete and die will ultimately damage your battery, avoid it if possible.

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What is the recommended charger amp for Samsung Galaxy S4?

Is there a quick charger for the battery if phone won't charge when connected?

There are available external chargers for your battery. Charging time will also vary based on the external charger's output Amp. A 3.0A will charge your battery faster. You may also notice that removing the battery and charging it through an external charger is faster than when you charged it normally through your phone. This is because when on the external charger, battery is focused on the incoming charges alone while if it is on phone, it still needs to supply power to phone functions and features.

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Why does S4 battery take so long to charge?

If you compare it with other batteries, Samsung Galaxy S4's battery has a bigger capacity, thus it takes longer for it to be fully charged compared to other lower-capacity batteries. Also, there are a few things that cause slow charging on your S4. The output capacity of the charger you are using is the first thing to look into. Lower output amperage allows your battery to charge slower. If you are charging through a USB source, then it will take you slower as a USB 2.0 only gives 0.5A while a USB 3.0 gives about 0.9A. If you want to charge your device faster, use the AC charger whenever possible. Lastly, using your device while charging will make charging slower. This is because the battery is constantly depleting to provide power for the resources needed by your device. If you want to charge you Galaxy S4 faster, close all unused applications and turn off Bluetooth, Wi-Fi and Hotspot sharing.

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Why does my Samsung Galaxy S4 keeps turning the screen on when it gets done charging?

Your Samsung Galaxy S4's LED light will blink green when it has been fully charged and a charger is still attached to it. This is to give you a notification and a reminder to remove the charger as the battery has been fully charged. Aside from blinking green, the LED will also blink blue or red depending on the status of your phone. The following is a guide to the LED's blinking colors:

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  1. 1
    Blue LED.

    LED will show blue under the following situations:  

    1. LED will blink blue when your Galaxy S4 is on the process of booting up or shutting down (turning on or off).
    2. LED will blink blue when there is an unread message, a missed call and other application notification.
    3. LED will blue blink when your device is on the process of voice recording.
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  2. 2
    Red LED.

    LED will show red under the following situations:  

    1. LED will blink red when a charger is connected to your Samsung Galaxy S4 but it is not charging or there is a problem with the charging.
    2. LED will blink red when the battery levels are low.
    3. LED will glow red when your device is connected to a charger and charging while the screen is turned off.
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  3. 3
    Green LED.

    LED will show green under the following situations:  

    1. LED will glow green when your Galaxy S4's battery level is at 100% and the charger is still attached to it.
    2. LED will blink green when your screen is off and an application had just been installed.
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  4. 4
    If this wiki helped you... Give our volunteer authors a

To turn on or off the LED notifications of Samsung Galaxy S4, follow the following:

  1. 1
    Go to your Home screen by tapping on the Home key.

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  2. 2
    From the Home screen, pull the notification bar down.

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  3. 3
    Tap on the Settings icon on the upper right part of the screen,

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  4. 4
    From Settings, tap on the My device tab.

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  5. 5
    Under My device, tap on LED indicator option.

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  6. 6
    Choose which LED indicator you wish to turn on or off.

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  7. 7
    That's it.

    That's how you turn on or off the LED indicator of Samsung Galaxy S4.

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  8. 8
    If this wiki helped you... Give our volunteer authors a

What is the safe battery temp (temperature) of Samsung Galaxy S4?

There is really no exact safe battery temperature for Samsung Galaxy S4. It is recognized by Samsung that your device can turn hot especially if it is on a heavy use like playing a very graphic and processor-consuming game. It is a good thing to note that your device has a built-in logic that shuts itself down whenever it thinks that the temperature is extremely high. However, just to be safe give your phone a break when it reaches temperatures over 45 degrees Celsius or when you feel that the phone is too hot to touch.

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Should you drain the Samsung Galaxy S4 battery completely before charging it?

No, if possible, you should never drain Samsung Galaxy S4's battery before you charge it. Once the battery levels fall at about 50%, make sure to charge your phone. This will keep your battery at its optimum performance and maximum life expectancy. Samsung Galaxy S4 is using a Lithium-ion type of battery. Unlike the nickel-cadmium type of batteries which require draining before a recharge, lithium ion batteries does not require you to drain; in fact, battery draining is discouraged when using it.

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In one day how many hours should I charge my Samsung Galaxy S 4?

Depending on your rate of usage, your Galaxy S4 may be charged more than once a day. The key to charging is that your battery should be charged the moment if goes below 50%. This is to ensure you make the most out of your battery life. If you are a light user with the brightness turned to very low, then you may only need to charge your battery once every two days. However, if you are a heavy user and is a hard-core gamer, then your Galaxy S4 may need to be charged more than twice a day.

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Can you charge a Samsung Galaxy S4 through a computer?

Yes it is fine to charge a Samsung Galaxy S4 through a USB on your computer. However, you must take note that the charging speed may be longer than when you charge it using an AC charger. This is because the USB 2.0 port only has a maximum of 0.5 amperes of charge while a USB 3.0 has 0.9A maximum output charge. Charging through the USB may be practical when you are on your computer and laptop or an AC socket is not available. It is interesting to note that you can also charge your phone using your laptop even if the latter is not plugged in. This information may come in handy during brownouts and power failures.

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Does using a regular charger for Samsung Galaxy Note 3 hurt an S4?

A Galaxy Note 3's regular charger has a maximum output of 2.0 amperes. This is just similar to the output of a Samsung Galaxy S4 charger. Basically, chargers of both devices are compatible so you should not worry using any charger from both devices to any of them. Also, it is a good thing to know that Galaxy S4, or any latest Samsung Android device, will only take inputs from a charger based on the device's maximum charging capacity so you do not need to worry that anything may happen if you overcharge your Galaxy S4.

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When does the LED light indicate low battery in Samsung Galaxy S4?

The LED light will blink red if the battery level is below fifteen percent (15%) of its capacity. If this happens, say to it that you charge your device to be able to use it without interruptions. Again, you should take note that as soon as your Galaxy S4 hits below fifty percent (50%) of its battery level, you need to have it charged to maintain battery health. Always draining a battery will substantially affect its useful life.

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Tips, Tricks & Warnings

  • Use only original standard Samsung charger, batteries, cables and adapters. Using nonstandard accessories may cause damage to your phone. Furthermore, your device warranty may be void.
  • When your phone display of battery charge drops below 15%, charge your phone as soon as possible.
  • If possible, close all running applications and wireless connections (WiFi, Bluetooth, SBeam, except GSM) during charging.
  • Make sure to connect the charger properly as an improper connection may damage your phone. Take note that the warranty does not cover damage due to negligence and misuse.
  • While charging your phone, if the main power supply becomes unstable, your touchscreen may not function. Remove the charger from the main power supply, and wait until the main power supply is stable once again. You can also use an AVR (Automated Voltage Regulator) to stabilize your electric current.
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Questions and Answers

Does charging a battery before it is depleted cause damage?

charging a battery before it is depleted cannot cause damage to your mobile phone

Actually, one of the things that causes the battery damaged is going all the way to zero battery depletion. It is suggested not allow it to get to zero, as it can degrade the battery’s life, especially if you have a lithium ion battery. Lithium ion is used for Samsung Galaxy S4 mobile phones. You should also be aware that there are different types of batteries used for various mobile phones:

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  • Lithium polymer batteries (Li-Poly)
  • Nickel metal hybrid batteries (NiMH)
  • Nickel cadmium batteries (NiCd)
  • Lithium ion batteries (Li-Ion)

Lithium ion is the most popular, expensive, and current technology for mobile phone batteries. There are drawbacks, of course. Apart from degrading the battery’s life, it can also cause damage when it is overcharged for up to 24 hours. Additionally, it can explode if it is charged when completely drained. Why is this so? Lithium ion batteries have self-destruct circuits, which will disable the battery permanently, if they reach rock bottom.

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So, . This is actually better than charging the battery when it is completely empty. Leave 40 percent of battery life and you can recharge it.

Yes, over a period of time it can cause damage to your device. It is recommended that you allow your battery to fully die or discharge before charging it back up fully.

See more questions like this: Why is my battery charging light white

Should I charge daily as I did with my iPhone?

Hi, with my iPhone i charged it every day whether it was dead or not. Should i be doing the same with the Galaxy S4?

To make the most out of your Galaxy S4's battery, you are to charge it as soon as the battery goes below 50% of the total battery capacity. If you are a low to normal phone user, there will be days that you do not need to charge your device. For mid-heavy users, charging of phone is required at least a day. Charging two or more times a day is required for those people who heavily use their device for online gaming and movies.

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No, it is recommended that you allow your battery to die or discharge fully at times in order to allow it to rest or not be fully over used.

What is the procedure for the first time charging of new S4 Galaxy Samsung?

There is no special procedure in charging your Samsung Galaxy S4 for the first time. Simply charge your device as instructed on this article and pull it out from the outlet once the battery goes full. First time charging may take a little bit long but this is normal and no special procedure is needed.

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The procedure upon opening up the box will be for you to make sure that you charge up your device fully for the first time. A lot of people when they first receive the phone will in fact not charge it up fully the first time which can cause damage to the battery in the beginning stage.

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See more questions like this: Samsung galaxy S4 not fully charging

Hello,please let me know how to charge my Galaxy S4 by using charger?

Should i plug the charger to my phone first? Also, I have battery doctor should i wait until it say unplug?

Though it won't make any difference if you plug your phone to the charger before plugging the charger into the socket than the other way around, it is advisable that you plugin the charger to the wall socket first before plugging the USB charging port to your phone. This is to save your phone from any damage in case their will be any shortages or electrical faults the moment your charger is plugged in to the electric source. Imaging that your charger, without you knowing, was submerged in water and still has some water inside its circuit. When you insert the USB port to your phone then connect the charger to the electric socket, the charger may explode and your may get affected. When your phone is plugged in last, you avoid these kind of, rarely,but unnecessary risk for damage.

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Battery Doctor is merely a battery monitoring application and you do not need to wait for it to notify you to unplug your device from the charger. As long as your battery indicator says it is at 100%, then you may unplug your device from being charged.

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Yes, you can plug your device up to your charger even with battery doctor it will save your device from overcharging the device. If you are up and you see your green light turn on your device will be fully charged.

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See more questions like this: Galaxy s4 charge instruction i need help with charging

There is no option to just charge the device?

If you just want to charge your phone and you do not want USB debugging functions with it, you can disable USB debugging on your device by following the procedures below:

  • Go to your Home screen by tapping on the Home button once or the Back key for a few times.
  • From the Home screen, tap on the Apps icon to see the list of available applications on your phone.
  • From the Apps list, tap on the Settings icon to change your phone's settings.
  • From the Settings, tap on the "More" tab to view more of your phone's settings.
  • On More Tab, under System Manager, tap on the Developer Options.
  • On the Developer Options, un-check the box for USB debugging.
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If the device is hooked up you should not have to activate any feature to charge it. Now keep in mind some usb cables to transfer to computers aren`t chargers, they are just data cables. Other than that, it should automatically charge once plugged in to the appropriate charger.

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My Galaxy S4 battery reduce early after its came at 65%?

When my cell was fully charged and i use it. After using 35% battery battery percent reduce to 14% from 65 % in 5 minutes.

There are many reasons why your battery percentage suddenly drops in big leaps. The following are the reasons and what you could do with them:

  • You are using your device heavily. You may be opening and running too many applications at the same time. Close unnecessary applications. Applications are not closed when you press the Home button; they are merely minimized. You can check on this article to learn how to close applications on your Galaxy S4.
  • Your phone got a glitch that made its processor run abnormally fast, thus draining your battery. If you feel that your phone got abnormally hot, immediately turn off your device and remove the battery. Wait for the battery to cool down before putting it back into your phone and turning your S4 on again. You can check on this article on how to remove and put back your battery.
  • Your battery may not be in good health. If battery draining happens regularly, then your battery may be defective and in need of replacement. If this is your case, buy a new battery and dispose the old one properly. If the useful life of your battery was very short, then you may be a very heavy user or you are not taking care of your battery. Make sure that you do not let your battery drain. Ensure that you charge it as soon as its capacity drops down to 50%.
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Your battery is not being fully charged which can either be a problem with the USB charger that you are using or the battery itself, one way to diagnose the problem will be for you to use another USB charger to see if the problem persists in order for you to recognize whether it is the USB or your device.

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Looking to find what a blinking battery icon means?

Looking to find what a blinking battery icon means when I have my s4 plugged in, but the icon does not show the charging icon just blinking battery

This is a problem with the charger. You can verify this be trying to charge with another charger. If you cannot find any charger available, you can go to a cellphone accessories shop and ask to try out a charger. If a different charger will work on your phone normally and you won't get the blinking battery icon, then buy a new charger and properly dispose off your old one.

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This means that your device is not fully charging itself, the solution I made in order to help this situation was to was to change my charger because I learned that the charger I was using was not putting out enough power to my device in order to charge itself fully.

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See more questions like this: Why is my battery icon white instead of green

Higher capacity battery for Samsung S4 mobile phone?

The standard battery for Samsung S4 mobile has a capacity of 2600 milliamps. I am looking for a higher capacity battery for Samsung S4 mobile. Please advise specifically.

There are many batteries with higher capacity available for Samsung Galaxy S4. If you want to buy one, you should get your battery from a trusted seller and from a manufacturer that has a good reputation. You do not want to have a damaged phone due to problems with low-quality battery. The following are recommended:

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If you need a higher capacity battery for your S4, you can check out some of the extended batteries available on Amazon. There`s a 5200mAh battery here:


http://www.amazon.com/Hyperion-Samsung-Extended-Compatible-Warranty/dp/B00BCK2G40


And a 7500mAh here:


http://www.amazon.com/warranty-ZeroLemon-Protection-Compatible-International/dp/B00CXZI3DQ


Both of these will be thicker than the standard battery you currently have and will come with a special back cover.

I couldn't charge my battery its keep showing 0% battery status?

My samsung galaxy mini2 battery not charging keep showing 0% and status with !(exclamation sign) i used new battery still is showing same please help me

Borrow a working charger and see if the battery still won't charge. Since your battery is new, the problem is now either on the phone or the charger. Use your charger to charge other phones to confirm if it is still working. If it won't charge with other devices too, then replace it. If it will charge, then the problem is possibly with your phone. Check on the suggestions on the question above if this is your case.

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If you have used a new battery but getting the same result then you will need to first diagnose your USB chord to make sure the chord is in fact working properly. If the chord is working then it will be your charging port that is the problem on your device.

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See more questions like this: My samsung battery went flat. Now it is showing a green full battery. but how do i turn it on

Do i have to wait for the light to turn green be4 i take it off,, been like 17 hours and not green yet?

Does light turn green, been 17 hours and still nothing ... when can i take it off

It should be showing you the green light on being fully charged. If the light hasn`t turned green after 17 hours, it is probably not working. Check by going into settings and then going into battery, you will know if your phone is charged or not. If it isn`t charged then there is something wrong with the phone and you need to get it repaired. If it is charged and the light is not on then, it is just the light that isn`t working and you can get that repaired as well. In either case, you will have to go to the repair shop, only that it is o.k. to not go if it is just the light.

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Why is the red light flashing on my Samsung s4?

I have never switched chargers since i've had the phone but tonight the red light starts to flash instead of staying steady when my phone is plugged in to charge . Its doing it on and off . when its flashing it shows my phone not charging

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When the LED light blinks red, it means that the phone is connected to a charger but there is an issue with the charging. Do the following to determine solution:

  • use another charger- if it charges, the charger is broken
  • tried another charger, still does not work- charge the battery only using a universal charger
  • charged battery from universal charger (full), still does not power on- battery pin issue or bad battery, try changing the battery (if issue is the same, it could be a battery pin issue) For battery pin issue, send the phone to an accredited Samsung Service Center to get it fixed
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See more questions like this: Why is my battery icon white

Battery Disconnected message on SS G4?

OK - usually charge SS G4 overnight. Woke up this morning with the battery at 80%. I unplugged the charger, plugged it back in and now get 'battery disconnected' instead of 'charging'. Never happened before - and now the battery won't charge ..Cheers

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This could be a couple things. Either the charging adapter is bad or the charging port on the phone has gone bad. The best way to test it is to use a new charging adapter to find out whether the old adapter is bad or if it`s the charging port that`s gone bad.

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See more questions like this: Battery disconected on S4 active. what to do

It's not charging and makes a noise every once in a while?

Not charging properly either with computer or a power storage device

It could be a battery or phone problem. To know for sure, you need to use another battery (of the same kind and brand for the same phone), if it works on your phone, does not emit any sound when charging, it can indicate that the battery is to blame.Buy a new one compatible for your phone. However, if it remains the same, it could be a problem with your phone. I suggest you have your phone checked and fixed in order to use it efficiently again.

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First you will need to make sure that your USB chord is not the reason for the charging problem. Use your chord on another device to see if it will in fact charge the next device as well. If the chord is perfectly fine then the issue will be with your USB port on your device.

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See more questions like this: I got a new samsung galaxy S 4 and it takes too long to charge

In the step: "Wait for your phone to be fully charged, indicated by a continuous lit green led." the led is blue?

In the step: "Wait for your phone to be fully charged, indicated by a continuous lit green led." the led is blue

Howik QnA. This section is not written yet. Want to join in? Click EDIT to write this answer.

See more questions like this: My battery indicator is not turning green once the battery is fully charged. why is that

I am having problems with the touch screen?

The phone is on but the screen is unresponsive

If the touchscreen is completely unresponsive then you will need to take it to a technician, or use any applicable insurance you may have. Now if it is slightly responsive or if you can go to settings, motion, sensitivity settings then select gyroscope calibration. That will allow you to hopefully fix the problem

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Why my battery icon is colored white instead of green? There are many possible reasons why the battery icon indicator of your phone is white instead of green. The most common reasons are these:

  • You are using a customized theme. Some themes alter the battery icon's color. This is not a sign of any problem though. Depending on your them manager application, check if there is a way to change the battery icon color. If you can live with a white colored battery, then that should not be a problem; however, if you are not using any theme-altering applications, then you may need to check on the next possible reasons why you have a white battery.
  • Your battery is close to empty. The battery is colored full green when it is fully-charged. At 75% capacity, your battery icon will be colored white from top to the upper 25% of it, and green on the remaining parts. At 50% capacity, your battery is white from top to middle part and will be colored green from the middle to the bottom. When it is close to being fully drained, you battery will be colored white. This means that your phone will power off anytime and you need to charge it to keep it running.
  • Your battery is defective. When your battery is defective, it may only show an empty battery icon even if it still has power capacity on it. You can check it by inserting your battery to another working Galaxy S4 and see if the problem is being replicated. If the battery is colored green on the other device, then it could be a problem with your phone.
  • Phone's battery capacity reader is defective. As mentioned above, if the battery is colored normally on the other phone, then your Galaxy S4's battery capacity reader may be defective. You can confirm this by using a working battery, with at least half remaining capacity. If the phone show's a white icon, then you may need to have your device checked. Check if your phone is under warranty. Defects of this nature are, normally, part of the warranty coverage.
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The LED indicator of my phone is blue, what does this mean?

The LED indicator will blink with blue color when you have notifications on your phone and your phone screen is turned off. Notifications include missed calls, messages and application notification. You can enable or disable blue LED from blinking when you have a notification with your screen off by going to HOME > APPS > SETTINGS > MY DEVICE > LED INDICATOR > Remove the check mark on the tick box for NOTIFICATION.

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See more questions like this: S4 active led indicator when charging

What will I do if my phone doesn't start after charging?

Normally, your phone will not start or power on when you are charging it while it is turned off. You need to manually turn on your Galaxy S4 by pressing and holding the Power button for a a little more than a second. If your phone does not start, chances are your phone may have been fully drained out of its battery juice. Allow your phone to charge for at least 5 more minutes before attempting to turn it on again.

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How much time to charge for the first time. Do you need to drain battery first and then charge?

You do not need to drain your battery first before charging. That is a thing of the past; that method only works for older type of batteries. Samsung Galaxy S4 uses a Lithium Ion battery that does not require draining. In fact, it is advisable for Lithium Ion batteries to be charged when its level goes below 50%. This applies for both new and used Lithium Ion batteries. See more questions like this: Yes thank you.. should the phone be switched off when charged for the first time

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  • If you have any problems with any of these steps please post in the comments section below.

Comments

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Anonymous user #1

253 days ago
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my phone is charging very slowly via usb its like taking 10 to 15mins for every single point.
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Anonymous user #2

250 days ago
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i have buy new sumsing s4 but it is not charaging and are not power on pls help me
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Anonymous user #3

235 days ago
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To anonymous user 2, i think you got China phone, not Samsung
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Anonymous user #4

227 days ago
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Hi there, for the first 3 months, its takes 2 hours for my s4 to be fully charged.But now it takes 3 to 4 hours to be fully charged. Is this normal ?
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Howik AdminCaptain

220 days ago
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I am copying and answering your question into the main wiki section above.
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Anonymous user #5
207 days ago
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I have to agree with anonymous 1, I purchased a new Samsung galaxy s4 this morning. It had very low battery left (not sure how much as I don't have it set up to display, but low enough that the warning to charge came on, whatever percentage that is), and it has been charging for 6 hours already (USB 3) and is only up to 48%.

Any advice would be much appreciated, as this seems wrong. Is it faulty?
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Anonymous user #6

148 days ago
Score 0+-
i had the same problems with my S3 and s4...I even went to the Tmobile shop to hand it in because some charging periods were 12hrs?!when i used a HTC cable a noticed it had 5 copper pins inside the charger cable's head (the part u put in to ur phone)..and the samsung cable only4...so now i bought 3 brand new HTC mini-USB cables on ebay (2 spares) and voila the problem is solved .The same problem occured with my S$ and it's original cable..HTC cable solved it again,based on that i was thinking there must be more people on planet earth with the same issue(s)!?
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Anonymous user #7
206 days ago
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When the s4 is fully charged, is the screen supposed to turn itself on? Is there a way to turn that function off?
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Anonymous user #8

204 days ago
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my phone won't charge like it goes to 37% then it starts going down like to 35 and so on. whats happening to it ? why do it do that ?
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Anonymous user #9

199 days ago
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Hey I just got my galaxy s4 I haven't unboxed it yet because I need to know how long to charge the phone for the first time
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Anonymous user #10

198 days ago
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Hi... I bought my s4 just under 5 months ago. Since the last week my battery has been acting strange, draining very quickly especially with wifi on. And the past 2 days the battery reaches between 50 and 40% and then the phone shuts down. And won't restart till I plug it in to my charger. After switching it on it shows the battery level as 0% I took it to the samsung service centre today, they checked the battery and said that it was puffed up. And yes I agree it was. They said this is mostly likely caused by overcharging. Of course I don't think that's possible and your. Very helpful article. Confirms that. They said that since the battery is puffed it will not be replaced under warranty. I would appreciate your valued advice on this. Should samsung replace my. Battery under warranty or not? Thanks
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Anonymous user #11

197 days ago
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Yes I also bought my s4 around 4 months ago. My phone also shuts down by itself at around 40% -50%. I opened the back cover and discovered that the battery was extremely swollen to the extent that it can't fit into the battery slot properly. Don't use the damaged battery anymore as it just gets even more puffed up if you continue to use it (from my personal experience) eventually the battery may leak and damage your phone. In extreme cases, it may explode. Take out the battery from your phone and replace it with a new one asap. They should replace you with a free new battery as batteries are under a 6 month warranty. Mine got replaced under warranty today. Hope I helped!
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Anonymous user #11
197 days ago
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It may be the charger's problem.
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Anonymous user #12

196 days ago
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Thanks for your reply. I went ahead and bought the s4 battery kit which comes with a battery and charger. The new battery is working perfectly and giving the back up one should expect from the s4. Will write an e-mail to samsung informing them about my swollen battery and that it was refused to be covered under the 6 month battery warranty. It's great that they changed it for you under warranty. Which country are you from? Thanks for your helpful reply. Really appreciate it
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Anonymous user #13

191 days ago
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I charge and use my phone mostly of the time and has no problem, but recently when i charge and use the phone, the battery status keeps going down its not charging at all but charger was plug in.. why and how?????
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Anonymous user #14

183 days ago
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can i charge my phone with the case? heard it damages battery life
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Anonymous user #15

171 days ago
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i think my galaxy s4 batery is swollen and my phone shuts down by itself very often. what should i do?
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Anonymous user #16

163 days ago
Score 0+-
My s4 will not power on today. I have tried everything. I used it at 6 am and it was fine. I did a update recently if that helps. When I try plugging it back in the the charger it feel warm, and it happens fast. I wonder if I'm in the low percent of a possible overcharge. What would happen if so? I took the battery out and cleaned connections. No signs of power what so ever in the phone.
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Anonymous user #17

156 days ago
Score 0+-
I bougt my s4 today.I received a call which drained the charge. I"ve been charging it for the last 3 hours and it does not indicate its charging though the charger is on and connections are right. Is this normal?
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Anonymous user #18

151 days ago
Score 0+-
i forgot to unplug my phone in my house it's already 48hours right now,what will be happend?
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Anonymous user #19

117 days ago
Score 0+-
I used a 3m cable directed from the AC power outlet to charge my S4. It took ages to charge up to 40%. Did I do any sort of harm to the S4?
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Anonymous user #19

116 days ago
Score 0+-
I used a 3 meter data cable with the AC Travel adaptor provided and the charging was so slow that in 4hrs the S4 was only charged 40% when usually using the short cable provided, is fully charged in 2hrs. Could I have harmed my mobile that way?
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Anonymous user #20

98 days ago
Score 0+-
In the step: "Some people wonder if it's really possible to charge their Galaxy S4 using a computer. Well, yes you can! It is possible to charge your Samsung Galaxy S4 through a computer. It's just as easy as charging with your usual AC charger." THERE IS NO OPTION TO JUST CHARGE
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Anonymous user #21

93 days ago
Score 0+-
In the step: "If you are using your Samsung Galaxy S4 for the first time, you are required to fully charge it. You can charge your device using the supplied charger or, by using a USB cable, and connecting it to a computer. Charging by the standard supplied charger would normally be faster, compared to charging by connecting to a computer via a USB cable." how much time to charge for 1st time. Do you need to drain battery first and then charge?
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Anonymous user #22

79 days ago
Score 0+-
In the step: "Wait for your phone to be fully charged, indicated by a continuous lit green led."

what if phone doesn't start after that
?
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Anonymous user #23

58 days ago
Score 0+-
In the step: "Wait for your phone to be fully charged, indicated by a continuous lit green led."

the led is blue
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Anonymous user #24

56 days ago
Score 0+-
In the step: "Wait for your phone to be fully charged, indicated by a continuous lit green led."

why is my battery icon white instead of green?
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YassoraCommander

56 days ago
Score 0+-
Your concern is already answered in the "Questions and Answers" section. please refer to there.
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Anonymous user #25
33 days ago
Score 0+-
Hi there, I'm possibly being extremely dim but I also have a white battery charge indicator until it goes down to yellow and I can't seem to find your "questions and answers" section you say above that it's already been answered.

One other thing is that the panel in my smart case is now offset occasionally so it doesn't show the whole screen.

This all started when I was having an update fine while charging.

Thanks for any help - and your patience.
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Categories : USE SAMSUNG GALAXY S4 | PL Check GREEN

Recent edits by: Doug Collins, Robbi, JMA

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