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[Q] Battery went from 93% to 21% in just over an hour

I was getting for work this morning and my battery started at like 93%, and when I got to work, I noticed it was at 21%. What could have happened? I'm using my OEM battery and charger. I didn't do anything differently with it today than normal.
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3V0_MR said:
I was getting for work this morning and my battery started at like 93%, and when I got to work, I noticed it was at 21%. What could have happened? I'm using my OEM battery and charger. I didn't do anything differently with it today than normal.
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Seems like one of the app is trying to use wifi with GPS or possible it failed to switch to 4g. I would manually disable wifi and GPS, then recharge the phone and see if the issue went away. If it is then the next step is to identify the root cause.

I noticed that your battery levels off. Does it actually die within say 4 hours, or can you go the whole day? I had an issue where mine would level off round 20% and I could go on for a few hours longer.... ended up reflashing my ROM, clearing caches to fix it.
Sent from my ghost white SGS3!

3V0_MR said:
I was getting for work this morning and my battery started at like 93%, and when I got to work, I noticed it was at 21%. What could have happened? I'm using my OEM battery and charger. I didn't do anything differently with it today than normal.
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Sounds like mine on another kernel I had. Thing would literally die within hours. Do you have wifi and gps on at all times?
Sent from my SCH-I535 using Xparent ICS Tapatalk 2

ShapesBlue said:
Sounds like mine on another kernel I had. Thing would literally die within hours. Do you have wifi and gps on at all times?
Sent from my SCH-I535 using Xparent ICS Tapatalk 2
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It had Wifi on always, and GPS some of the time.
Doesn't matter much now though; I got a new phone. That was the only time it happened though. Very odd.

3V0_MR said:
It had Wifi on always, and GPS some of the time.
Doesn't matter much now though; I got a new phone. That was the only time it happened though. Very odd.
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Still have an s3?
Sent from my SCH-I535 using Xparent ICS Tapatalk 2

ShapesBlue said:
Still have an s3?
Sent from my SCH-I535 using Xparent ICS Tapatalk 2
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Well I still have the phone, but I got a Moto X.

3V0_MR said:
Well I still have the phone, but I got a Moto X.
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Any ideas on if your interested in possibly selling it?
Sent from my SCH-I535 using Xparent ICS Tapatalk 2

If YOU are noticing degraded battery life after kitkat update, post here!

Are you noticing worse battery life after doing the kitkat update? I am, and I want to know if you are too.
Post in here, take the poll, and lets figure out how to track down what is going on.
Requirements: Try to post a screenshot of your battery stats, wakelocks (if possible) and how many hours you were getting before on a charge.
Here's my input:
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I will get some screens soon and try to track it down but I have been noticing that on days I use my Bluetooth after I turn it off. See a drastic.decrease in battery and my phone gets hot. I was have seen others say there was a Bluetooth wakelock as well and it's very random when it happens
Sent from my LG-D801 using Tapatalk

I'm down from 1.5 day to hardly 10 hours on a single charge

That's basically what I'm seeing, maybe 12 hours if I'm lucky. Granted I am using my phone a lot lately since I just got it but still... My s2 t989 with same usage was lasting far longer.
Sent from my LG-D801

Here's just today's bat life after sleeping 8 hours.
Sent from my LG-D801

My two main reasons for me rooting are ad blocking and greenify. I just learned that greenify added support for non-root users. I have greenified every app I don't use on a regular basis and am noticing significant difference in battery. The only thing is that after you use a greenified app you have to re-greenify manually.

Greenify and tasker work great, I had tasker auto hibernate all greenified apps upon screen on. Its basically the closest you can get to automation without rooting.
Greenify has saved my battery issues.
Sent from my LG-D801

Usually when going from previous to a newer android I factory reset twice
Sent from my HTC One_M8 using xda app-developers app

Same here
Sent from my LG-D801

Usually I do a factory reset after such an upgrade
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PunishedSnake said:
Usually I do a factory reset after such an upgrade
Sent from my HTC One_M8 using Tapatalk
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More often than not, a factory reset will take care of battery issues after a major OS upgrade. I'm not sure if it's left-over system files or something about the "upgrading" of existing apps during the process, but I've had to do it with both my Galaxy S3 and Nexus 7 2012. Not every upgrade, mind you, but with one or two.

I do notice my system battery monitor jumping around all crazy, this is after a factory reset.
Sent from my XT1053 using Tapatalk

My wife's battery life has become so bad since the update, that I'm on this site trying to figure out how to downgrade her phone right now. (My N5/CM11 sometimes lasts longer than her G2 now)

Curious how everyone is now doing on the 20e update?
Sent from my LG-D801

Bout the same for me. Only thing I notice is that before my wifi was always running in background according to bbs, no matter what I did to change settings. Not anymore after update.

First cycle on the update I lost 35% or so in a couple hours with little use. I checked battery use and Instagram was the primary hog. Uninstalled and reinstalled the app and getting awesome battery life comparable or better than before the update. Not sure why instagram went crazy but works fine now
Sent from my Touchpad using XDA Free mobile app

The update fixed a serious wakelock issue caused by wifi calling for me. A lot of wakelocks seem to have disappeared with the update for me.
Nothing leaps and bounds, but notice a bit of an improvement for sure.

T-Mobile update

I thought this was the one but it was a false alarm and I haven't noticed anything different yet lol.
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What's this android for work function? I also hope the battery life gets better.

Just got the OTA too. COJ5.

johnny tsunami said:
What's this android for work function? I also hope the battery life gets better.
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That's what I'm trying to figure out myself lol.
Looks like app optimization has been added.
Sent from my SM-N920T using Tapatalk

Hopefully it fixes cell standby drain.
Sent from my SM-N920T using Tapatalk

shook187 said:
Hopefully it fixes cell standby drain.
Sent from my SM-N920T using Tapatalk
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Hopefully custom ROMs and kernels are still compatible.

If you want to download the ODIN file.
https://www.androidfilehost.com/?fid=24052804347852281

The first thing I noticed after the update was improved fingerprint recognition. I've never had issues with my thumbs not reading, but it seemed my index fingers had to be perfectly aligned in order to unlock my phone. Now they work at off angles and much quicker.
I also promptly froze the Gear VR apps since I don't want to risk battery hits from something I won't use.
Anyone use stock messaging? I'm curious if the awful delay when trying to send a message is gone.

Just a question. With the app optimization do we still need greenery? Just wondering.
Sent from my SM-N920T using Tapatalk

Weird thing I noticed was when when I factory reset after I took the update factory recovery was saying something about dfverify tree or something like that.

Interesting; I just had my Note5 unlocked and with my AT&T SIM in, I was able to download and install the update OTA.
Happy to see all known Stagefright vulnerabilities are now addressed.

mt

chp said:
Interesting; I just had my Note5 unlocked and with my AT&T SIM in, I was able to download and install the update OTA.
Happy to see all known Stagefright vulnerabilities are now addressed.
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Why wouldn't you get the update? I don't think SIM card mean anything.
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shook187 said:
Why wouldn't you get the update? I don't think SIM card mean anything.
Sent from my SM-N920T using Tapatalk
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SIM cards are used to determine OTAs for Nexus devices. But you are correct that they typically don't matter for other OEMs because each carrier gets a different model number assigned to their hardware variant.

peterfabri18 said:
Just a question. With the app optimization do we still need greenery? Just wondering.
Sent from my SM-N920T using Tapatalk
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Greenify? I'm wondering the same.

Wireless charging is being a lot more picky about where I place my phone on the pad after the update. I have to set it down a bit higher on the phone rather than centered like usual.

DJ ELITE said:
Greenify? I'm wondering the same.
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Why, doze isn't until Marshmallow. Is that why you're wondering?
beep

Daiskei said:
Wireless charging is being a lot more picky about where I place my phone on the pad after the update. I have to set it down a bit higher on the phone rather than centered like usual.
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thats upsetting
i was having this problem prior to the update, was hoping for a fix
Samsung wireless charger is supper picky, third party ones, not so much

I'm already noticing improved battery life.
Unplugged for 3.5 hours, and in the marginal LTE/H area that I am for work, I would be down 20% or more with light usage. As of now, I'm at 89%.

Is anyone else experiencing issues with Text Messages? I'm using the stock messaging app (after I started having issues with EvolveSMS). I'll get the same text messages from someone 5 to 7 times, kind of getting annoying when my S2 vibrates and get's blown up with notifications.

Resetting affect battery?

Does factory resetting a few times affect battery?
Does software reinstalls affect battery?

If you update your S6 with OTA and the update is large( from 5.1.1 to 6.0.1 for example) battery drain quicker.
I installed android 6.0 OTA on my S6 and battery give me 3.15 SOT with a good wipe 4.30 SOT.
So yes

Lucoso46 said:
If you update your S6 with OTA and the update is large( from 5.1.1 to 6.0.1 for example) battery drain quicker.
I installed android 6.0 OTA on my S6 and battery give me 3.15 SOT with a good wipe 4.30 SOT.
So yes
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I've just reset mine a lot of times as i have issues with the battery, and it sometimes gets worse after a reflash. Just wondering if it affects it in a bad way?

jamesskinner97 said:
I've just reset mine a lot of times as i have issues with the battery, and it sometimes gets worse after a reflash. Just wondering if it affects it in a bad way?
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For me in a good way can you post some screenshots?

Lucoso46 said:
For me in a good way can you post some screenshots?
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I've just reset the phone, so I have no screenshots to show at the moment. I'm just leaving it idling, and seeing how much a 1% lasts with no apps, and Google and that disabled. I will post that in a bit
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Lucoso46 said:
For me in a good way can you post some screenshots?
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Just checked, goes down every 10 minutes
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jamesskinner97 said:
Just checked, goes down every 10 minutes
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1% every 10 minutes?

Lucoso46 said:
1% every 10 minutes?
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Yeh, I don't know what to do now, whether to send it away or not
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Lucoso46 said:
1% every 10 minutes?
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New update April/4 ,battery and camera fixed

I just got a new update fixed a lot of things for me the camera and the battery android system now around 8% .
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dannycanrock said:
I just got a new update fixed a lot of things for me the camera and the battery android system now around 8% .
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Thanks. I got the same this morning also.

What was wrong with your camera? My Battery SUCKS right now!

idtheftvictim said:
What was wrong with your camera? My Battery SUCKS right now!
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anytime you do an update give it a day or two before determining how the battery is.. it burns through some doing optimizations on the first load
Sent from my SM-G935T using Tapatalk

i can also say the edge screen isn't giving that multi touch palm issue any more. Im glad to see that fixed as well.

I'm afraid to do the update since they say it cannot be rolled back

if you are looking for any root in the future i would suggest holding back from updates

I updated and so far cpuspy says deep sleep instantly as soon as screen is off and dont see any wakelocks so far. I disabled junk and uninstalled stuff I dont need and removed notifications for any games(I just check my games and weather manually). So far no android system drain at all in 15m on battery. I updated 30min ago then fast charged.
Sent from my SM-G935T using XDA-Developers mobile app

Battery has been good since updating this morning. I normally get 9 SOT. I'm down to 83 percent and already have 2 hours SOT. Can't wait to see how this pans out in a few days!

Has anyone checked if this update unlocked the bootloader?

That first update knocked out 2.4ghz wireless reliability, I wonder if this will fix it! *fingers crossed*
My battery and camera have been great! I haven't had a low-light picture that was amazing yet, but that's not their fault!

Hooray! They fixed the screen too sensitive already. And I feel it run smoother now.
Sent from my SM-G935T using XDA-Developers mobile app

bajangna said:
Hooray! They fixed the screen too sensitive already. And I feel it run smoother now.
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Agreed. This was my biggest pain point. What a relief that its fixed!

Screen sensitivity fixed here as well. It so much easier typing now. Also my palm resting on the edge no longer makes the screen go unresponsive.
Android System battery drain also fixed.

I'm torn between accepting this update and holding off for root possibilities.
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v8dreaming said:
I'm torn between accepting this update and holding off for root possibilities.
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I'm in the same boat. All these reports of improved battery life and smoothness/camera/touch screen makes it harder to wait. I figure if you're content with the battery life then just wait it out. I hope potential root would yield better results than any update [emoji41]
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