Database Users

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 all of a sudden is totally garbage

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

Phone charging all weird

I can't tray explain it but whenever my phone is really low on battery (let's say 10 percent) it doesn't seem to discharge it just stays at 10% forever, that's at least what Android thinks (pic included)
And then after plugging it in it charges really really fast, probably a percent of charge every second or so until it reaches about 20%
Could it be that my battery is dying? Software issue maybe? Having really bad battery screen on times as well.
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oops picture didn't get uploaded for some reason
https://i.imgur.com/7aE5gIR.png

Hello,
Try recalibrating the battery.
For example, with the following app: https://play.google.com/store/apps/details?id=com.vitula.batterycalibration

Advice on what's hogging my battery and zapping it at 50ish %

Hi. I'm on the B03 build of Oreo non rooted. Had to manually find the download as bought phone from Italy and imported to UK.
Really like Oreo but since getting it, my battery has been cutting out at around 50% sometimes lower. There is something in the battery life that is hogging it but it doesn't say what, just the android symbol at 86%.
Would a new battery fix this or is it time for a new phone? I've only had this 2 years and most phones I've got 4 years out of. Love the hardware but it's been a bugger for lack of support and no OTA updates.
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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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