Charging Samsung Galaxy S7 Edge battery & tips to prolong battery life

Your new Samsung Galaxy S7 Edge (#GalaxyS7 #S7Edge) has a 3600 mAh Li-Ion battery that can last a couple of days when used normally despite all its features and components. Without a charge, your expensive phone will become just another paperweight on your table. It is, therefore, imperative that you know how to properly charge your device and learn some tips on how to problem the battery life.


There are two ways you can charge your S7 Edge; wired and wireless. I will go through each of these methods and provide you with some useful tips as we go along. But before anything else, please note that your device doesn’t have a removable battery so if it’s damaged, you just can’t buy a new one and replace it. You need to have a technician do it for you.

Samsung Galaxy S7 Edge Wired Charging

This method will also give you two options; to charge your device using the power adapter that came with it or through a computer.

If you just got your device, the battery already has a charge but it’s not full. It’s recommended that after setting it up, you immediately charge it and leave it plugged in until it reaches 100%. Use the original charger that is capable of Adaptive Fast Charging so you don’t have to wait longer and to make sure the battery is properly calibrated while on charge. To charge your device, follow these simple steps:

  1. Insert the USB cable into the charging port on your phone.
  2. Plug the other end to the power adapter.
  3. Now plug the charger to the wall outlet.
  4. Depending on how much battery is left, the battery may be fully-charged in less than an hour when fast charging is enabled.
  5. After charging, unplug the cable from your phone and remove the charger from the wall outlet.

If you’re mobile and charging through the wall outlet is out of the question, then you can use your laptop to charge your S7 Edge. But please note that fast charging isn’t possible if you’re not using the original power adapter and it may take a couple of hours to fully-charge your device or even more.

  1. Plug the smaller end of the cable to the phone’s USB / utility port.
  2. Insert the bigger end to the USB port on your computer or laptop.
  3. If your device is on, you may change the USB connection to charge only.
  4. After charging, disconnect your phone from your computer and remove the cord.

Samsung Galaxy S7 Edge Wireless Charging

Your device uses the standard Qi Inductive Charging Technology, which allows you to charge it without attaching a cable to the utility port. All you need is a wireless charging pad that’s compatible with the technology used by your device. Here’s how you do it…

  1. Connect the cable to your wireless charging pad.
  2. Plug the power adapter of the charging pad to the wall outlet.
  3. In most cases, your charging pad has a LED indicator to tell you whether it’s ready or not.
  4. When your charging pad is ready, place the phone over the pad and make sure it’s centered. It must also face up.
  5. More often, the wireless charging pad will emit a blue light to indicate it’s charging.
  6. When the battery is full, your charging pad will emit a steady green light.
  7. You may now remove your phone from the pad and use it.

Samsung Galaxy S7 Edge Battery Saving Tips

There are a lot of things you can do to save battery life but aside from that, your phone already has a couple of features that would make it last longer–Power Saving Mode and Ultra Power Saving Mode. I would like to discuss these features a little bit before going to other tips.

Power Saving Mode

While the S7 Edge has a huge battery that could last for a few days with minimal use, having this feature will guarantee you’ll never run out of juice that easily. Power Saving Mode does the following:

  • Limits the processor’s maximum performance
  • Turns off lights for the touch keys
  • Reduces screen brightness automatically without you having to set it
  • Turns off vibration feedback
  • Reduces screen timeout
  • Reduces frame rate

But the good thing about it is that you can set it to function immediately or at a later time. For instance, you can turn it on so that it engages when the battery reaches 20%. It means that you’ll still be able to use your device normally even when it’s turned on if you set it to take over at the later time.

To enable it, follow these steps:

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings.
  3. Touch Battery.
  4. Now tap Power saving mode to toggle the slider to ON.
  5. You can now set it to engage immediately or at a later time by tapping Start power saving and you’ll have the following options:
    • Immediately
    • At 5% battery power
    • At 15% battery power
    • At 20% battery power
    • At 50% battery power

Ultra power saving mode

This feature will considerably handicap your phone while it’s engaged but you can rest assured that you can continuously use your phone for a few hours even with its battery almost drained. Unlike the first one that you can set to engage at a later time, this mode will engage immediately once enabled and there are changes you’ll be able to notice the moment you turn it on.

  • Screen color will be changed to greyscale so you’ll be able to see just black and white (black background, white font). The AMOLED screen doesn’t take up as much power when the background is black because only the LEDs in the areas where there are light colors are lit.
  • It also simplifies the operating system so as to use minimal processor power.
  • It turns off mobile data when the screen is off.
  • It also disables Wi-Fi and Bluetooth as well as location services like GPS.
  • It disables almost all apps except three and other apps the user added to the exception.
  • It reduces screen brightness.

To enable it, follow these steps:

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings.
  3. Touch Battery.
  4. Touch Ultra power saving mode to toggle the slider to ON.
  5. Read the terms and conditions if you want and then hit AGREE.
  6. You may now see the default apps you can use but you can add other apps as well by tapping the plus (+) sign. These are the apps you can add:
  • Calculator
  • Clock
  • Facebook
  • Google+
  • Memo
  • Voice Recorder
  • WhatsApp

Now that you know how to enable both the Power Saving and Ultra Power Saving modes, it’s time you learned about other things you can do to save battery life. Try to go over the procedures below:

Close recently used apps

  1. From any Home screen, tap the Recent Apps key (left side of the Home key).
  2. Choose apps you wan to close.
  3. Swipe each app left or right to close them.
  4. You may also close all of them by tapping the Close all icon in the bottom right corner.

Adjust screen timeout, lower screen brightness

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings.
  3. Touch Display.
  4. Tap Screen timeout to adjust the amount of time before the screen turns off automatically.
  5. You may adjust the screen brightness to a lower level if you want or just enable Automatic brightness. But for the sake of saving battery life, I suggest you do the former as the latter still uses battery for the light sensor.
  6. On that same page, you may also disable the Always On feature.

Turn off wireless connectivity features

In case you didn’t enabled the Power saving modes, it’s always recommended to turn off connectivity features like Wi-Fi, mobile data, Wi-Fi calling, Bluetooth, GPS and Portable Wi-Fi Hotspot.

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings.
  3. Scroll down to Connections to have access to the settings of each feature.

Turn off background data usage

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings.
  3. Touch Data usage, then tap MORE icon.
  4. Tap Restrict background data, then OK.

Change app sync settings

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings.
  3. Touch Accounts and tap on the desired account.
  4. Now uncheck the boxes next to apps you don’t want to sync.
  5. When you’re done with your selection, tap the Menu icon.
  6. Touch Sync now.

I hope that the things I discussed in this post can help you one way or the other. Enjoy your new device.

If you have problems or concerns, do not hesitate to contact us by filling up this questionnaire. You may also visit our troubleshooting page for the S7 Edge as we list down every issue we address each week.

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Harold Hisona

Harold has been in the tech industry since 2008 when he started out as a tech support for companies like Time Warner, Comcast and Tracfone. He’s been troubleshooting phones when the smartphone industry started booming. During his tenure as a tech support, he’s already been writing for various tech blogs and doing some freelance SEO. In 2012, he joined a small team of bloggers to write for The Droid Guy, and he has been with the company ever since. Today, he doesn’t only write tutorials and troubleshooting pieces but also shoots and edits videos for The Droid Guy channel while trading stocks on the side. Contact me at Email

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