Why is my batter draining so fast?

[lpnic]

I'm posting an update because I don't see a way to post a reply on my question.

You are correct, I normally don't put the phone on the charger until it's very low and always charge it to 100%. I'll try and watch that from now on.

I've attached the screenshots that you requested. Today was a little better, though I was actually only using the phone for a little while after it being charge but it's currently at 27% already.

Thanks/Lew

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I have a Samsung Galaxy S7 edge running Android Oreo version 8.0.0. For the past two weeks my battery is draining extremely fast. I unplugged it from the charger this morning (after it charged all night; battery was at 100%). Less than 2 hours later I was at 52% doing not much more than reading email, visiting a few webpages, and sifting through settings to see why my ^&%$ battery was draining so quickly.

I took a screen shot of the battery usage, but don't see that I have the ability to post it here. Essentially it shows that I now have 6 hrs 48 mins of battery remaining, a deep decline in the battery usage bar graph, and the following battery usage:

Android System: 12%
Screen 6%
Android OS 2.%
Firefox: 2%
Android Core Apps, Device Idle, Google Play services, and Google each at 1%.
On the main battery screen it shows "outlook" usage per hour .02%.

I've optimized my phone (storage, battery, memory, ect) but it is still continuing to decline quickly.

Again, I just noticed that this issue started about a week ago (and seem to remember activating an alert for system update around that time, though I'm not sure that has anything to do with it).

Any thoughts, oh wise ones? Thanks/Lew

 

[B. Diddy]

Welcome to Android Central! Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:
1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).
http://forums.androidcentral.com/ge...ide-how-post-screenshots-android-central.html
You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.

 

[Rukbat]

I'm guessing that you drain the battery down pretty low before recharging it. Drain it low enough (close to 0%) and you can completely kill the battery in a month. The trick is how long you can get the battery to last, not how long you can get the charge to last, and the way to do that is to never charge it past 90% (80% is better) and never let it discharge past 40%.

 

[lpnic]

B. Diddy, You are correct, I normally don't put the phone on the charger until it's very low and always charge it to 100%. I'll try and watch that from now on.

RUKBAT, I've attached the screenshots that you requested. Today was a little better, though I was actually only using the phone for a little while after it being charge to 100% but it's currently at 27% already.

Screen shots are attached to my original post.

Thanks/Lew

 

[Rukbat]

You are correct, I normally don't put the phone on the charger until it's very low

I'd guess that you''ve managed to almost kill the battery already, and you have to get it replaced. In the future, don't let it drop down below 40%. (If that's not enough time for you, carry a power bank with you.)

If you're in the US, try UBreakIFix - they're factory authorized repair for Samsung.