Develop Bugs

4.1.2 Battery Issues? Simple Fix

So the first thing I noticed when I updated to the MB4 4.1.2. Rom was the battery drain. Obviously, I also thought it was the LTE/4G/3G/2G options turned on being the culprit. But I did some research and found out wiping cache (not wipe data) in cwm did the trick. Now I only lose about a percent per night even with LTE on. Obviously, my GPS is not on when not in use. Looking at the battery setting, I see that the phone is awake only when the screen is on. That's what you want to get to I think for great battery life. Hope that helps. Not something hard to try and you'll notice no drain. Before I did this, I could come back in like an hour to see a couple percentage drops. Let us know how that worked for you.
ps - I just recalled I wiped or formatted another section. Just to be safe, wipe dalvic cache and format cache while you're at it. Usually it's best to format everything before a new rom and that helps solved most battery issues. But since we're not doing that, wipe these 3 and your battery life should come back up to normal.

Anyone else tried this?
I'm losing like 4% per hour on low to average use.
I'm really interested in trying this.

jinda628 said:
Anyone else tried this?
I'm losing like 4% per hour on low to average use.
I'm really interested in trying this.
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There's really nothing to lose here. You're not erasing your app data or anything of that nature.

Any way to do this on an unrooted/stock recovery phone?
Sent From My Ginormous Note 2

unfortunately youll need root and cwm or similar to get into these options.

So basically you suggest rooting then install cwm?
Sent from my SGH-T889 using xda app-developers app

jhobert said:
So basically you suggest rooting then install cwm?
Sent from my SGH-T889 using xda app-developers app
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Yeah, rooting is not difficult at all. I'd search for how on google on here on XDA. Searrch for "T-Mobile Galaxy Note 2 Root"

boodies said:
There's really nothing to lose here. You're not erasing your app data or anything of that nature.
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Ok, tried it. I'm recharging my phone to full now. I'll report if there is improvement. Thanks.

jinda628 said:
Ok, tried it. I'm recharging my phone to full now. I'll report if there is improvement. Thanks.
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Thanks, let us know how it goes. I'm going to do a full 100% charge tonight before I sleep and going to see the % drop in the morning. Im going to just turn off GPS, with wifi on.

k, i lost 5% overnight. 12am to 6am But for the first few hours the notification light was on, (got an email) GPS off, wifi on, Not bad but I lost 1% overnight with 4.1.1.

boodies said:
Thanks, let us know how it goes. I'm going to do a full 100% charge tonight before I sleep and going to see the % drop in the morning. Im going to just turn off GPS, with wifi on.
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boodies said:
k, i lost 5% overnight. 12am to 6am But for the first few hours the notification light was on, (got an email) GPS off, wifi on, Not bad but I lost 1% overnight with 4.1.1.
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5% overnight I think is not bad. I never really had a chance to test mine yet as I always charge my phone before I got to bed. I'll make sure to charge it later regardless of its battery level so I can leave it 100% before bed. Will report after.

jinda628 said:
5% overnight I think is not bad. I never really had a chance to test mine yet as I always charge my phone before I got to bed. I'll make sure to charge it later regardless of its battery level so I can leave it 100% before bed. Will report after.
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cool, let us know~

I am not rooted (yet!) but I use https://play.google.com/store/apps/details?id=com.cleanmaster.mguard&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5jbGVhbm1hc3Rlci5tZ3VhcmQiXQ.. I have good batt life.

jinda628 said:
5% overnight I think is not bad. I never really had a chance to test mine yet as I always charge my phone before I got to bed. I'll make sure to charge it later regardless of its battery level so I can leave it 100% before bed. Will report after.
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Sorry for the delay so I went to bed and lost 7% after 5 hours. I dont use any 3rd party power saving aside from the one in the phone settings. My phone is rooted but running stock. Only thing off was the BT and GPS and everything is left on default.
Is this percentage drain normal?

jinda628 said:
Sorry for the delay so I went to bed and lost 7% after 5 hours. I dont use any 3rd party power saving aside from the one in the phone settings. My phone is rooted but running stock. Only thing off was the BT and GPS and everything is left on default.
Is this percentage drain normal?
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Yeah, from using the 4.1.2 MB rom, I think you're generally going to get worse battery life than 4.1.1 stock t-mo rom. (that thing was amazing on battery) I really don't know what the BIG change in battery life is coming from. I even turned off LTE but doesn't really make a difference. I seriously don't think we should lose over a couple % overnight. Ill have to reinstall GSM Battery to see whats going on.

I want 4.1.1 battery life back aaaaaaaaaaahhhhhhhhhhhhhhh,I get about 12 hours now,used to be like 20

Macklessdaddy said:
I want 4.1.1 battery life back aaaaaaaaaaahhhhhhhhhhhhhhh,I get about 12 hours now,used to be like 20
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kinda odd that today, I lost about 50% during the working hours. That's close to what I usually lose with the 4.1.1 avg use during breaks, quick games, lots of news, etc. Gonna charge full tonight and see how it goes tomorrow. I might probably use it a little more though since my Boss is on a trip lol.

I did another test last night from a full charge. Slept for 4.5 hrs and lost 13%
I'm currently at 70% now with 8h36m on it @ 30m screen on time lol.
But realistically, as long as I dont have to run and look for charger before the day ends, I'm fine with this. I usually charge before going to bed and I still have about 15%. With about 4 hrs screen on the average.
Still better than all my previous smartphones.

jinda628 said:
I did another test last night from a full charge. Slept for 4.5 hrs and lost 13%
I'm currently at 70% now with 8h36m on it @ 30m screen on time lol.
But realistically, as long as I dont have to run and look for charger before the day ends, I'm fine with this. I usually charge before going to bed and I still have about 15%. With about 4 hrs screen on the average.
Still better than all my previous smartphones.
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lol yeah, the phone definitely lasts till I get back home. Ill have to see again today. Will report later.

Tired it but didnt notice a difference still get meh battery life

lollipop battery

It seems that with the new update I am getting less battery life then when kit Kat I have everything the same expect no root and I would usually get around 5 1/2 battery life on kit Kat with root but now I'm nearly getting 4? And I already factory reset it and it's still the same any help ?

Im having similar results, with 3 hrs screen time being my average. Fresh install, wiped clean, etc etc.

Mine is about the same. I have it set to power saving mode. Just not affecting background data. Getting a full day with it without having to plug it in till about 11pm, my day off charger starting at about 5:30am. It might be your settings and if you're a power user. I use mine all through the day, from streaming audio to social networking and talking and texting or surfing the web. Even watching videos!

My battery has taken a hit as well. I'm seeing about 20-30% less energy from what I used to get.

before the update I unplugat 7:30 I got to high school so I stream netflix I use YouTube occasionly read books at half Brightness with no auto sync nfc Bluetooth off WiFi off till I get home and when I'm not using my data I turn it off (even though I have unlimited ) then when I get home connect to WiFi and keep streaming YouTube and text social media and never worried till about 10 or 11 with around 5 hohrs and 40 or 45 min at 10 % but now I bear get 4 ost

You people do know that just like when you flash a ROM you have to train the update or ROM to the battery. To do this you have to completely drain and charge the battery a few times. I get better battery time with Lolipop then I did with KK. But I also trained the battery and system.

Yeah I was thinking that also but idk if that was the answer or there was something going on because when I first got this phone I couldn't get more then 4 hours ost but now I got more, until the update

Solarenemy68 said:
You people do know that just like when you flash a ROM you have to train the update or ROM to the battery. To do this you have to completely drain and charge the battery a few times. I get better battery time with Lolipop then I did with KK. But I also trained the battery and system.
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This is one possibility.
thebrohluis said:
Yeah I was thinking that also but idk if that was the answer or there was something going on because when I first got this phone I couldn't get more then 4 hours ost but now I got more, until the update
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You all have to also remember that if you use a KK rom that they were heavily tweaked by the rom maker most times for battery life/performance boosts.

millerboy3 said:
This is one possibility.
You all have to also remember that if you use a KK rom that they were heavily tweaked by the rom maker most times for battery life/performance boosts.
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These both make a lot of sense when it comes to battery life. I concur with them both. From a stock standpoint and the custom tweaked.

With stock NK2 I was getting almost 30 hours wothout charge and about 4 hours screen on.... now with OB7 i am lucky to get 10 hours with 1.5 hours screen on. Seriously thinking about going back to NK2. yes I did a full system wipe 3 times to be safe and still having said issue with battery

Sherbon26 said:
With stock NK2 I was getting almost 30 hours wothout charge and about 4 hours screen on.... now with OB7 i am lucky to get 10 hours with 1.5 hours screen on. Seriously thinking about going back to NK2. yes I did a full system wipe 3 times to be safe and still having said issue with battery
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Have you fully discharged your battery to the point that the phone shuts off and then recharged with the phone off at least twice? If not you should give it a try. This is supposed to be standard procedure any time a ROM is changed or updated. The ROM has to learn the charge and discharge characteristics of the battery and the only way to do this is to have it run a couple of full cycles.

Solarenemy68 said:
Have you fully discharged your battery to the point that the phone shuts off and then recharged with the phone off at least twice? If not you should give it a try. This is supposed to be standard procedure any time a ROM is changed or updated. The ROM has to learn the charge and discharge characteristics of the battery and the only way to do this is to have it run a couple of full cycles.
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Accidentally gave thumbs up. Anyway, not sure if that's true. I've installed many roms across multiple phones (like most of you have) and I've drained and charged batteries after installing roms and sometimes I haven't. Either way I haven't noticed better battery life. It's usually the same.

Sherbon26 said:
With stock NK2 I was getting almost 30 hours wothout charge and about 4 hours screen on.... now with OB7 i am lucky to get 10 hours with 1.5 hours screen on. Seriously thinking about going back to NK2. yes I did a full system wipe 3 times to be safe and still having said issue with battery
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Stock rooted NK2 or full stock?
Solarenemy68 said:
Have you fully discharged your battery to the point that the phone shuts off and then recharged with the phone off at least twice? If not you should give it a try. This is supposed to be standard procedure any time a ROM is changed or updated. The ROM has to learn the charge and discharge characteristics of the battery and the only way to do this is to have it run a couple of full cycles.
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Click to collapse
This only gives you very small gains if any, also this matters more only if you don't ever let your phone die completely/have a non-stock battery.
DarkManX4lf said:
Accidentally gave thumbs up. Anyway, not sure if that's true. I've installed many roms across multiple phones (like most of you have) and I've drained and charged batteries after installing roms and sometimes I haven't. Either way I haven't noticed better battery life. It's usually the same.
Click to expand...
Click to collapse
Thats usually whats going to happen, small gain/loss. Nothing amazing unless you have an extended battery the device needs to learn to use.

Battery Discussion

What's it like for you Sprint S6 owners?
I'm struggling here and my S5 was without a doubt wayyyy better... I'm starting to wonder if I have a defective battery to be honest. Averaging like 2 1/2-3 hrs SoT and 16 hrs total time on...

My girlfriend's S6 is going almost 3.5-4 hours SoT. I haven't checked her total time.
I believe she took an update when she first got the phone, she is on 5.0.2, OC9 build.
There is a software update available, but we are hesitant to take it, not knowing if:
1. It will make te batery life better or worse
2. will the tether without root continue to work
Have you taken the latest update?

Mangu said:
My girlfriend's S6 is going almost 3.5-4 hours SoT. I haven't checked her total time.
I believe she took an update when she first got the phone, she is on 5.0.2, OC9 build.
There is a software update available, but we are hesitant to take it, not knowing if:
1. It will make te batery life better or worse
2. will the tether without root continue to work
Have you taken the latest update?
Click to expand...
Click to collapse
Read around. There's plenty info out there. Battery discussion only plz n thanks.

I'm on my first day with it, but its definitely a improvement from the GS4 as of late atleast. Im at about 2 Hours screentime and 38% battery, first not even full charge, Started at like 82%.

I did a factory reset earlier in the week and that has seemed to help a TON. 4 hours of SOT and thats with extremely poor signal around home.

Battery is barely acceptable for me. My phone is not rooted. I average between 12-14 hours off charge and average around 3 hrs screen on time give or take a few minutes. I'm a heavy user and use my phone pretty much all day. Saving grace is it charges really fast. Thinking of rooting but not sure there's anything I can do to help the battery life

i have the s6. yeah battery life is poopy but its expected. im struggling cuz idk if i shud switch to the s6 edge. yeah those side displays r cool but im told if that thing drops the wrong way even with a protective case then its bye bye screen. oh decisions decisions

Battery life Here is actually not bad, especially after the Samsung Push update from the Play store. Many tech blogs wrote about this possibly helping the battery life on the S6. I just finished 1 day and 5 hours with 30 percent left, so for me that not bad at all.

reverepats said:
Battery life Here is actually not bad, especially after the Samsung Push update from the Play store. Many tech blogs wrote about this possibly helping the battery life on the S6. I just finished 1 day and 5 hours with 30 percent left, so for me that not bad at all.
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What was your SoT though?

JoeFCaputo113 said:
What was your SoT though?
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Wasn't that high, just under 2hrs. But for me, that's normal..... And I'm totally cool with that. The battery life really ALmost pushed me to the Note 4, UT after all this, I'm here to stay

I am averaging 3 hours 50 mins SOT in my house on wifi all day. It seems to be getting better since the push update.

I've had great battery life with my regular s6 thus far. 30+ hours and 5.5 SOT average. Location off at home, bt off, wifi on, location history off, no samsung/google/sprint apps or features enabled (like s voice), auto brightness, black wallpaper, disabled samsung push, turned off LTE at home, only on CDMA, cant remember what else.
I've seen a lot of people on forums complain their battery for their s6 is bad, but I don't get it?

My battery sucks.. I have gps off, syncs to minimum, all notifications offs, and took the last Samsung update. Still battery life is not the best.

So far today gettings my best screen on time yet.
Sent from my SM-G920P using XDA Free mobile app

I wouldn't say my battery life is fantastic, but its certainly better than it was on my S5 when it was either stock or on CM.
I'm in Houston, so I generally have very good signal, but I use it a lot throughout the day. Bluetooth music to and from work, games during the day when I have downtime, some maps usage when I do mobile calls. I take it off the charger around 9am and get home around 630pm with anywhere between 40-60% left. That's with GPS always on (highest location settings), 3 gmails and Facebook synced, screen always on auto, Bluetooth always on and paired to my Moto 360.

Battery FIX:
1. Turn off WIFI calling.
2. Turn off Location History.
The above two changes doubled my battery life. Went from maybe 3 hours Sot and dead in 7 hours, to 5.5 SoT yesterday and still running after 16 hours usage. MAJOR difference. Any my screen stays at or near full brightness.

syphen6 said:
So far today gettings my best screen on time yet.
Sent from my SM-G920P using XDA Free mobile app
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Dude what are your settings to achieve those screen on times? That is nuts.

FlowingAway said:
Dude what are your settings to achieve those screen on times? That is nuts.
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Automatic Brightness - On
NFC - off
Wifi Calling - off
Wifi always scanning off
Switched to CDMA only. I did have it on LTE for a little bit when I went to the grocery store.
Everything else is on
I am still really surprised at the change in the battery life from when I first got it because I could only get 2 hours SOT for like the first week.

syphen6 said:
Automatic Brightness - On
NFC - off
Wifi Calling - off
Wifi always scanning off
Switched to CDMA only. I did have it on LTE for a little bit when I went to the grocery store.
Everything else is on
I am still really surprised at the change in the battery life from when I first got it because I could only get 2 hours SOT for like the first week.
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Click to collapse
I have dove way deeper into disabling things than just these items and today it looks like I'm going to get around 4 hrs of screen on time. But I've only had the phone for 6 days.
One quick question: In the time you've had it, have you factory reset the phone, rooted, or flashed firmware, or have you just stayed the course and let it settle in? It sounds like I may just need to let it settle before the awesome battery life starts happening.

FlowingAway said:
I have dove way deeper into disabling things than just these items and today it looks like I'm going to get around 4 hrs of screen on time. But I've only had the phone for 6 days.
One quick question: In the time you've had it, have you factory reset the phone, rooted, or flashed firmware, or have you just stayed the course and let it settle in? It sounds like I may just need to let it settle before the awesome battery life starts happening.
Click to expand...
Click to collapse
I factory reset the phone after 3 days of owning it because my battery life was terrible. After I did that I was getting close to 3-3 1/2 hours SOT with the phone which was about what I was getting on my M8. Then all of a sudden it just started getting way better. It might of been that Samsung push update or maybe the battery just needed alot of time to break in. Also i'm not rooted and I haven't flashed any firmware.

How do I find out what is draining my battery?

Hello all I have been having serious battery drains e.g. Screen time on is 3 hours but total battery life is 10 hours. Before I was getting close to 20 hours with about 4 hours screen on time. I have gsam battery monitor but I am not seeing anything abnormal that is draining it.
I've also been leaving it on the charger for probably 10+ hours frequently, I know that li ion batteries aren't supposed to be affected by this but could this somehow be causing my shortened battery life?

I've had the same problem since this last update. Lay night I did a factory reset which did not resolve the issue. According to cpu spy, the phone is not going into deep sleep at all.

thevaristy said:
I've had the same problem since this last update. Lay night I did a factory reset which did not resolve the issue. According to cpu spy, the phone is not going into deep sleep at all.
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Mine has been going down since lollipop. I'm hoping the new moto x will be much better, we will see I guess. I've had enough of samsung's crap on the note 4.

The only thing I can suggest is have Verizon replace the phone. They had to replace my phone till I got one that finally operated successfully snd good battrry life. It took till my 4th phone, but since then I am LP 5.0.1 build number ending in OF1. I get about 14 hours on a single charge with 5-6 hours of on screen time.
Sent from my SM-N910V using Tapatalk

outcasted2003 said:
The only thing I can suggest is have Verizon replace the phone. They had to replace my phone till I got one that finally operated successfully snd good battrry life. It took till my 4th phone, but since then I am LP 5.0.1 build number ending in OF1. I get about 14 hours on a single charge with 5-6 hours of on screen time.
Sent from my SM-N910V using Tapatalk
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Unfortunately I bought my phone on swappa so I can't do that.

sudden complete battery drain

Hey folks, I've had my Moto Z Play since November of 2016, and so far have been enjoying fantastic batter life - generally around 8 - 10 hours over 2 or 3 days.
However, I had a nasty surprise a couple of days ago.
I charged the phone to 63% before I went to bed, and then turned it off. When I turned it on in the morning, it drained over the course of around 5 minutes (browsing reddit using swipe) to 14%. By the time I checked what was going on it was at 9%, and it had reached 7% before I decided to turn the thing off. Fun times.
I plugged the phone in with it still powered off, and it leaped straight from 7% back to 63% reported charge. Mighty strange eh.
I've not had this exact issue again, but I am concerned as my battery life seems to be significantly reduced when I compare it to before the incident. Watching youtube videos I am draining about 1% / 5 minutes, as opposed to the 1% / 10 minutes that I was getting previously.
There don't seem to be any rogue apps running, and I am slowly uninstalling anything that was recently updated, although I feel this is unlikely to be related to the issue.
I am unrooted, running the nov. security update in the UK. I have been charging using an Anker brand cable and power brick.
I was wondering if anybody else has had a similar issue to this? Thanks for reading, have a good day people.

With it jumping back up I'm thinking it's a software glitch. I'd back up my data, do a full data wipe /factory reset and see if that helps. If not, then time to call up Lenovo for a warranty repair.

thanks for that - yeah I agree, reckon I'll wipe and see how I go for a week or so. I bought through a good retailer in the UK, so hopefully getting action on a repair shouldn't be too much of an issue if it comes down to it.
Without much knowledge of how the technology works, it sounds to me like it's either a software glitch as you suggest, or potentially a bad battery.

Yep, those were my first two thoughts. Good luck with it!

Good luck beating this folks?

RealiZms said:
Good luck beating this folks
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WTH? How? Amazing

RealiZms said:
Good luck beating this folks?
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I was on a pace to get something like that yesterday - but I had to go to sleep so I could get up for work. Had 8:40 SoT over 17h off charger, with 46% left. If I could have stayed awake all night I might have made it! ?