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usertp9zTNtUKu
Asteroid

Galaxy S7 battery issue

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Hello, the last few days I've been having a sudden crazy battery drain... I cleared the cache, then performed a factory reset and the battery was still draining - around 1.5% per minute with the screen on. Around 1% every 3-4 minutes with the screen off. I read an article about Safe Mode.. and before I got into Safe Mode I had 23% battery... when I got into Safe Mode.. it showed me 62%.   I got back into "normal" mode and it still showed 62... now it's currently at 60%. Thought this is weird.. any idea what's going on?

1 SOLUTION

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usertp9zTNtUKu
Asteroid

Re: Galaxy S7 battery issue

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Seems like you only read the title of my thread and not what I actually wrote, but what you just copy/pasted here has nothing to do with my problem. 

Anyway, it seems to be a bad calibration problem... it's working normal after I got into Safe Mode. I let it discharge and turn off by itself, then charged it 100% while off and then turned it on. Thanks anyway

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10 REPLIES 10
PrinceAli
Constellation

Re: Galaxy S7 battery issue

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I have the same problem

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usertp9zTNtUKu
Asteroid

Re: Galaxy S7 battery issue

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When did it start and did you have any recent updates?

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usermq96bg091Y
Astronaut

Re: Galaxy S7 battery issue

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I think mine is related to the device maintenance app. In the data usage it shows 60%. It was added or altered with an update. Can't make it stop or delete it. Every Samsung phone i get ends up with a battery drain issue after an update.
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Red Giant

Re: Galaxy S7 battery issue

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@usertp9zTNtUKu,

 

Workarounds:

The obvious place to start is to turn features off. Pull down the notification shade and turn off anything you don’t need.

Go to Settings > Display and turn Always on display

Reduce your screen brightness, and go to Settings > Display > Screen timeout and turn it down as low as you can stand.

Use the power saving modes in Settings > Battery.

Reduce background data usage for apps via Settings > Data usage > Background data.

Potential solutions:

If your battery is draining fast, and it’s happening while you’re not even using the S7, there’s a chance that a rogue app is to blame. Take a look for potential culprits in Settings > Battery > Battery usage. If something is guzzling too much juice, make sure it’s up to date or consider uninstalling it and replacing it with something else.

It’s worth trying a wipe of the cache partition. Turn the S7 off by holding the Power button and selecting Power off. Hold the Power, Volume up, and Home buttons together. When you see the Samsung logo you can let go of Power, but wait until you see the Android logo to release the other two. You should see the recovery menu. Use Volume down to highlight Wipe cache partition and then Power to select it. Once it’s done, press Power and select reboot system now.

You may have to set up a few things again, but resetting settings is a good thing to try before you resort to a full factory reset. You can do it via Settings > Backup and reset > Reset settings.

If nothing has fixed your S7 battery drain, then back up everything on the phone and remove your MicroSD card. Then, go to Settings > Backup and reset > Factory data reset. After the reset is careful about what you install and watch out for a recurrence of the battery drain.

 

If you have already done  a Factory Reset though, you will want to look at repair/replacement options:

 

You can get your device repaired for about $150-250. There are several options such as:

1. Replacing through carrier

2. Replacing through Insurance.
Check out the following links for your carrier:

AT&T: https://goo.gl/tuPypB
Cotsco: https://goo.gl/gowZBB
Cricket: https://goo.gl/UBZ7FH
Fido: https://goo.gl/HjhUFB
MetroPCS: https://goo.gl/VnhfT7
nTelos: https://goo.gl/7mcwVv
Rogers: https://goo.gl/kgzA7C
Sprint: https://goo.gl/o6URZ3
T-Mobile: https://goo.gl/hMpFy3
Verizon Wireless: https://goo.gl/Phtk9s
Walmart:https://goo.gl/f6LbUC
Freedom Mobile: https://goo.gl/X5Ra4q
Telus: 1-866-281-4537
Koodoo Moble: 1-844-574-1839

3. Best Buy with Samsung Experience Shop inside of it (https://goo.gl/MnGpIL). Here is a Store Locator: https://goo.gl/RS1YXm

4. Samsung Repair Center: https://goo.gl/oaEuyN

5. Ship it to Samsung: https://goo.gl/FyQfKB

(All links are shortened with Google URL Shortener and are safe to click)


Acrillix - Samsung Community Valued Contributor Elite Member
Be sure to click "✓ Accept as Solution" when you find an answer that works for you and "This Helped Me" if it's helpful.
My Blog - Guru of the Galaxies: http://guruofthegalaxies.com/
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usertp9zTNtUKu
Asteroid

Re: Galaxy S7 battery issue

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Seems like you only read the title of my thread and not what I actually wrote, but what you just copy/pasted here has nothing to do with my problem. 

Anyway, it seems to be a bad calibration problem... it's working normal after I got into Safe Mode. I let it discharge and turn off by itself, then charged it 100% while off and then turned it on. Thanks anyway

View solution in original post

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userVG2AYgqKJG
Constellation

Re: Galaxy S7 battery issue

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I did all the tips given to me by the tech at a Samsung store and they did a factory reset. But I am having the same problem and it got worse after an update. I wonder if its because of the update or that I use too many apps? Even then when I'm done with them I closed them up and etc. Does using the Samsung charger to charge other devices affect this issue?

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Samsung Moderator
Samsung Moderator

Re: Galaxy S7 battery issue

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I would recommend you to send in the phone for service, once the factory reset is done and the issue still exists i would recommend sending it in. 

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Samsung Moderator
Samsung Moderator

Re: Galaxy S7 battery issue

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userBLrM5vz5zI
Astronaut

Re: Galaxy S7 battery issue

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I bought my galaxy s7 phone in April and it won't hold a charge. It also gets very hot when charging...i am afraid it will catch fire. What is wrong.
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