Battery all of a sudden is totally garbage - Samsung Galaxy S7 Edge Questions and Answers

Not a month ago I was getting 5+ hours of screen time a day with room to spare and I would go to bed with 15-20% battery left. Now I can't even make it the day and struggle to get 3 hours, just tonight I went from 11% to 2% in a matter of minutes. It looks like the Android system is sucking up all kinds of battery, I've been using Gsam Monitor since May:
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What gives? I have all my bloatware disabled, I have no clue what's going on. Reboots do nothing.

I think a factory reset may solve your issue. It never happened to me since no rom has been in my phone more than a month

Related

Battery dropped 20% overnight. How can I find out what's causing it without rooting?

Nothing in the battery stats is abnormal and the phone didn't wake up a lot yet I lost a ton of battery overnight. How do I find what caused it? Also is their anyway to tell if I have a defective battery? A lot of people here and at /r/motox seem to be getting better battery life. I can barely get 3 hours of sot over 10 or so hours. I really want to keep this phone but if this is going to be normal then I might as well go back to the Note 4.
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Sent from my Nexus 9 using Tapatalk
Install System Panel and let it log the data for some time. I have the paid version, but I think the free version is similar.

Battery Problems

Hi, since a week ago I'm facing a huge battery drain problem. Yesterday I charged 3 times this phone and the only thing I did was web browsing, watching YouTube videos and browsing. My model is xt1644us and I'm in official MM(mpj24.139-64). Here is a screenshot from battery settings http://m.imgur.com/a/RpNuR
Today i charged the phone and left it a few hours to charge and it doesn't reaches 79% it get stuck.
I turned off the phone and i saw the battery decrease while was charging(yes, sounds crazy) in 2 secons went to 72% and since that it is in 72%.
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Somebody had this problem? Any solution? Thanks in advance
Had a similar issue. Incorrect percentage and wouldn't charge. Had to send back to Motorola for repair under the 1 year warranty. You can submit it online. Takes less and 2 weeks. Been fine since.

Android OS battery Drain

I used to have around 6 hours Screen on time with around 20% left per day, now I barely past one hour and a half screen on time and my battery is at 50% , I can see that " android os" is using my battery quite extensively , the only thing I tried is deleting the cash and disable some automatic sync, can someone suggest a solution ? and can you please share how much android OS uses of your battery (in mAh) ?
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Brand new s8 plus weird battery life

Insane stupid battery life. My galaxy a3 2017 says 16hr remaining from 64% on with loads of features,yet I turned off loads of features on this phone and at 77% says 7hr left. Help mee please .
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Anyone??
weird, you didnt have the phone off, its weird though, maybe try a hard reset if it shows again...
I did the other night full reset and its on 48% and says 4h and. 48m. So confused
Since it's brand new I would cycle the battery a couple of times - let it run down to empty and recharge to full.
s8's learn your battery usage over the first week or so. your battery life will improve.

Phantom battery drain

I'm running LineageOS 20 (Android 13).
Charged my phone to 90% 2 days ago, left it on standby afterwards.
The battery was replaced 3 months ago, and the phone does not heat up during normal use.
Came back to 15% battery remaining.
Anyone knows what's going on? Is the battery fake or something? How do I even start debugging this problem?
Other than the stock apps installed alongside the ROM, I have rooted the device with magisk and installed Adaway and Advanced charging controller.
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