Develop Bugs

Bad battery?

I have had some issues where my phone won't wake up so I have to pull the battery and when it reboots the battery drops like 20%. Is this a bad battery or what causes this?
Sent from my SPH-D710 using XDA Premium App

what rom are you running? if i remember correctly there was an issue with one of the roms but i cant remember. but I do remember it being an older rom that did that.
as for the batt. % i get that all the time even when i reboot..tho i get a bigger drop in % when the batter is lower.. like if i was at 50% batt power.. reboot then i would be like at 20% batt. power.. but it would stay at 20% for a really long time till it caught up with it. and sometimes the batter % would rise up a bit. but eventually start to go down again.
But maybe I have a bad battery also.. so im not sure...lol

Jeepguyxj said:
what rom are you running? if i remember correctly there was an issue with one of the roms but i cant remember. but I do remember it being an older rom that did that.
as for the batt. % i get that all the time even when i reboot..tho i get a bigger drop in % when the batter is lower.. like if i was at 50% batt power.. reboot then i would be like at 20% batt. power.. but it would stay at 20% for a really long time till it caught up with it. and sometimes the batter % would rise up a bit. but eventually start to go down again.
But maybe I have a bad battery also.. so im not sure...lol
Click to expand...
Click to collapse
I had the exact same problem my phone would constantly reboot and shut itself off then I would lose half my battery % I thought it was the battery too so I returned it to stock and took it to sprint they looked at the phone for 2 hours and said there was absolutely nothing wrong with it or the battery. So I took it home and re rooted using Qbking77's latest method the one that does not give you the yellow triangle and I have not had one reboot or sleep of death since and the phone just runs soo much better now so I think it was a bad root for me. I would try re rooting with the latest method and see what that does for you. Also ya out of curiosity what rom are you using because I have heard similar stories from people running the ICS leaks.

studdmufin said:
I have had some issues where my phone won't wake up so I have to pull the battery and when it reboots the battery drops like 20%. Is this a bad battery or what causes this?
Sent from my SPH-D710 using XDA Premium App
Click to expand...
Click to collapse
In recovery, wipe your battery stats. May help after the phone calibrates.

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rbtrucking said:
I had the exact same problem my phone would constantly reboot and shut itself off then I would lose half my battery % I thought it was the battery too so I returned it to stock and took it to sprint they looked at the phone for 2 hours and said there was absolutely nothing wrong with it or the battery. So I took it home and re rooted using Qbking77's latest method the one that does not give you the yellow triangle and I have not had one reboot or sleep of death since and the phone just runs soo much better now so I think it was a bad root for me. I would try re rooting with the latest method and see what that does for you. Also ya out of curiosity what rom are you using because I have heard similar stories from people running the ICS leaks.
Click to expand...
Click to collapse
I'm running caulk's fc07 1.1 with the repacked kernal. It happened to me before on GB while also running caulk's rom but it only a few times. It seems to happen more now. Here is a screen of my battery
Sent from my SPH-D710 using XDA Premium App

I believe this would happen more in most recent ROMs because everyone is focusing how fast we can run it or how long we can use it. In either case, there are lots of tweaks and mechanism to make it fast and last long.
For the battery life, there is some background process monitoring unnecessary processes and kills those or tweaks to less frequently monitor the status. So, if the process which is related to battery life is killed, next time when it wake up, it may detect the different life time based on current Voltage or mA. I'm not an expert in this area but it's highly possible scenario. Tweaking the system brings lots of good things to us but in the other side, there could be some
side effect.
If you want to verify this theory, you can just compare the non tweaked rom versus tweaked Rom.
Be sure that you don't run any battery saver apps on non tweaked rom to measure it correctly.
Attached is my last screenshot yesterday after I removed the battery saver app. Currently I'm using Calk's Stock Rom FC07 (non tweaked version). Based on my test, the battery last longer than when battery save app installed and running.

Cool I didn't know that would be an issue. Well I'll try that thanks for help
Sent from my SPH-D710 using XDA Premium App

Also a note... with my experience anything to do with 3g service... I can kiss my batter life goodbye... if im at 100% battery life.. and i have 3g on... it will last around 5 hours and its dead

Jellybean batt life observation

Seems jb batt life is pretty bad. 2%/hr idle. Alot of wake locks also from maps and networklocator. :Im assuming all from google now?

Noticed that over the last 24 hours battery life was worse than usual while I was on jellybean. Think you are probably right that Google now is the culprit, I really hope that it gets better before the ota but at the moment it just doesn't seem like it will be worth "upgrading".
Sent from my Cyanogenmodded GNex

emerica243 said:
Seems jb batt life is pretty bad. 2%/hr idle. Alot of wake locks also from maps and networklocator. :Im assuming all from google now?
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Click to collapse
Well, it must be Google Now. I turned it off and my battery is relatively the same as it was before. When using background location update, you can expect it to drain battery a little. Google Now uses your location data quite a bit.

I left my phobe at 96% came back 4 hours later and still on 96
Sent from my Galaxy Nexus using xda premium

I thought JB was pretty good on the battery from my experiences. Did my overnight sleep test and it drained 3% in 8 hours just like ICS did.
As for screen on time, I feel that it's even better than before.
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I would be getting 4 hours screen on time if the battery drained to 0.
I'm very satisfied.
Sent from my Galaxy Nexus using xda premium

I'm getting pretty good batterylife with JB. Over 10 hours on battery and over 3 hours of screentime and I still got 40% left with 2000mah oem battery.

I have yet to flash JB, but one thing concerns me. Is this not just a dev preview and not the final product that will be pushed out mid-July? Not to sound harsh, but I don't see why complaints are being made about battery life at this stage of JB. Just my 2 cents, fyi...
Sent from my Galaxy Nexus using xda app-developers app

My battery life is no different.
You also have to remember this is a developers preview build and not the official release.
Sent from my Galaxy Nexus using xda premium

My battery life over the ~12 hours i had jelly installed seemed the same. Good standvy times also. I think it will depend on how much of the new stuff google added you use that will determine battery life. Some of that stuff will make a big impact.
butter and jelly please...

leelaa said:
I left my phobe at 96% came back 4 hours later and still on 96
Sent from my Galaxy Nexus using xda premium
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Click to collapse
What kernel are you on? and what freq\gov?

emerica243 said:
What kernel are you on? and what freq\gov?
Click to expand...
Click to collapse
All stock, changed nothing at all, for me its best that way (for now)
Sent from my Galaxy Nexus using xda premium

Even though its just a Dev preview and to early to comment on this, I think its about the same on ICS if not better.
Completely stock , not even rooted.
Sent from my Galaxy Nexus using Tapatalk 2

If you are getting bad battery life and wake issues, check your apps. I've heard LightFlow was causing wakelocks b/c it isn't optimzied for JB yet. I've deleted it until they can get it updated. So far, my battery life hasn't been great b/c I can't keep my hands off of it

Yeah, I would agree that battery life seems pretty good. It seems a little worse on Franco.kernel than stock, but hey, it's a new kernel and he is still trying to get all the kinks worked out. Also, no wakelocks on Light Flow, but I hope they update it soon, lots of my notifications stopped working.

Ehh I don't think its terrible at 2% an hour. Better than 10% an hour. I'll take a little drain for the beauty of JB
Sent from my JellyBelly Gnex

IMO I think it's draining a little fast, but I think that's because I keep flashing kernels and add-ons which reboots and causes the battery to drain super fast... and I've been messing with apps a lot too. So I'm gonna give it another day or two for a definitive answer.

kristovaher said:
Well, it must be Google Now. I turned it off and my battery is relatively the same as it was before. When using background location update, you can expect it to drain battery a little. Google Now uses your location data quite a bit.
Click to expand...
Click to collapse
How do i turn it off
Sent from my Jelly Beaned GNexus

I don't understand what people expect??? They want to have an awesome huge screen, fast processor, 4G speeds, want to run apps like crazy and then have Google Now constantly updating and expect the battery to last all day?? People just need to be realistic!

I'm completely stock and my battery is almost the same. Think it's a bit early to tell yet, we've all been playing more with the new rom
Sent from my Galaxy Nexus using xda premium

I am under the impression that the drain is slightly higher than on ICS, I am now 5,5 hours after charging, with 88% left (and a screen time of 18mins). On ICS I would be around 90 to 93% (with the 2000mAh battery). But nothing really to worry about.
Having said that, I did have lightflow installed and it did show in the wakelock screen, so I uninstalled that to see if the next charge gives me even better endurance.

Battery life after Jelly Bean Update

how was your battery life after update . my was suck drain very fast

I don't know how most people got better battery life, but mine worse, not extreme, but noticeable worse.
Android system and Android OS takes second and third place, which on ICS I barely see their place on top of battery usage.

cnguyen said:
how was your battery life after update . my was suck drain very fast
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Click to collapse
my own battery life is mess.

my phone drop about 10% in 15min

Mine is great. But I turn off data when not used. Last night, I lost 1% per hour with data off and sync off
Sent from my Rooted Gameboy

batttery getting better after couple reboot

Best advice, power down after every charge and reboot.
Sent from my SGH-T999 using xda premium

cnguyen said:
batttery getting better after couple reboot
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Click to collapse
Seems the same for me...at first after updating battery life was terrible..but after a few charges and reboots it seems to be getting better.

Download an app from the play store called "CPU Stats" and see if the CPU is under serious load when you're not doing anything. If it is, you may have the same issue I had which was that the media scanner was getting stuck in folders that had a lot of files in them. My idle cpu utilization now hovers between 8-30% on core 1 and core 2 stays sleep for the most part.

Jigga0o7 said:
Download an app from the play store called "CPU Stats" and see if the CPU is under serious load when you're not doing anything. If it is, you may have the same issue I had which was that the media scanner was getting stuck in folders that had a lot of files in them. My idle cpu utilization now hovers between 8-30% on core 1 and core 2 stays sleep for the most part.
Click to expand...
Click to collapse
How did you fix your issue?

dls5375 said:
How did you fix your issue?
Click to expand...
Click to collapse
If you're rooted, look in system/bin on the root directory and see if you have a file named gsiff.daemon (also do the same for qosmgr) If so, add .bak to the end of it.
this will kill the high android usage!
where i got the information from
http://forum.xda-developers.com/show...php?p=34189109
Betterbatterystats will tell you if you have the daemon issue or the gosmgr for my phone the gosmgr was killing my battery

dls5375 said:
How did you fix your issue?
Click to expand...
Click to collapse
I offloaded my Titanium Backup folder to my PC & deleted it from my phone plus made sure to get rid of any corrupted pictures (aimed at the 0 bytes ones). So not only is my battery life better, but the performance is also much better because the CPU(s) aren't really doing anything until I actually use the phone. Note that this is an issue I've only had w/ Touchwiz Jellybean and never had it with CM10 or any AOSP based rom. This is a bug that Samsung/Google really needs to get on top of because I'm sure that a lot of people are having this problem and don't know how to fix it.

dls5375 said:
Seems the same for me...at first after updating battery life was terrible..but after a few charges and reboots it seems to be getting better.
Click to expand...
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This is my understanding as well.

Charged to 100 turned off WiFi sync and mobile data before bed woke up with 2% loss then listening to music on my way to work.
Update : still going
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Sent from my SGH-T999 using Tapatalk 2

My battery life has been amazing
This was after the weekend. Friday Morning I charged it and then I was off I went to work. After I went to a party didn't charge my phone. Woke up in some girls room. Still surprised I had more than 50%. I didn't go home that day and everyone had an iphone so I couldn't charge my baby. Wake up go home and I had this much and I was like wow holy sh**.
Stats: I had a little over an hour of talk time and a little under 2 hours of screen time.
Yeah I know why is battery life good if you don't use the phone but dude seriously I had a GS2 and drainage on standby was so bad. I like that they improved standby battery drainage this was beautiful. I have the latest Stock Jelly Bean. Rooted, debloated myself with stock Kernel. Might add a new Kernel but don't really need to this is just great.

Jigga0o7 said:
Download an app from the play store called "CPU Stats" and see if the CPU is under serious load when you're not doing anything. If it is, you may have the same issue I had which was that the media scanner was getting stuck in folders that had a lot of files in them. My idle cpu utilization now hovers between 8-30% on core 1 and core 2 stays sleep for the most part.
Click to expand...
Click to collapse
dls5375 said:
How did you fix your issue?
Click to expand...
Click to collapse
I was having this exact issue and fixed mine by copying my external SD card contents onto my desktop and then reformatting my sd card. After that I just transfered my old pictures and videos back to my card.
For people who are having poor battery life, the best thing you can do to help others help you is post a screen shot or at least write down what is using your battery and how long you have screen on time. When I was having my media issue it was obvious when looking at the battery usage since my cpu was constantly awake. Just saying "i have poor battery life" really doesn't explain much at all.

That would explain things... I had my media scanner get stuck and take down my battery a couple of days ago... after a reboot though it was much better... Though I should have let this run longer on battery just to see how long it would run.

Ok so since the JB update it seems my battery has been draining a bit faster. I've tried turning off sync and all the other normal stuff but it doesn't seem to help. Here are my stats and the slight lapse on the time line was when I was in CWM doing a nandroid backup.

I don't think that you can compare yours since you did a backup, that always drains the battery more than normal use would.

Well all I can say is its normally like that. I pull my phone off the charger at 7 am and by 4pm its usually at 10% with maybe an hour of on screen time. I'm just trying to figure out why it dies so much quicker than what most people are posting here. I try to keep everything closed and off and I've frozen all the bloatware.
Sent from my SGH-T999 using xda app-developers app

Battery drain???

Is there a drain??
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Sent from my D5503 using XDA Free mobile app

May I ask why you suspect a drain, like how long does it last and also what's wrong with the built-in bat-stat?
My biggest recommendation is to avoid DL'n every single app and keep it to a minimum.
Mine last roughly 2days with a screen time of 3-4h without charging (was away a weekend recently and took my chances and left the charger at home, used the camera alot incl. 4k shooting and alot of music videos playing and made all the way home with 1 percent )
Best phone in terms of battery I've come across yet.

on the stock rom and kernel?

Hello, what's your android version and firmware build number? I would like to use it because i'm on 4.4.4 build 14.4.A.0.108 and I'm experiencing fast battery drain.
[SIC] said:
May I ask why you suspect a drain, like how long does it last and also what's wrong with the built-in bat-stat?
My biggest recommendation is to avoid DL'n every single app and keep it to a minimum.
Mine last roughly 2days with a screen time of 3-4h without charging (was away a weekend recently and took my chances and left the charger at home, used the camera alot incl. 4k shooting and alot of music videos playing and made all the way home with 1 percent )
Best phone in terms of battery I've come across yet.
Click to expand...
Click to collapse

jserrano15 said:
I would like to use it because i'm on 4.4.4 build 14.4.A.0.108 and I'm experiencing fast battery drain.
Click to expand...
Click to collapse
Changing ROM will not help in most cases if you won't discover what is eating battery.
I am on the same above ROM and kernel and I don't complain.
Term 'fast' is not much precise, either.
BTW:
1.3%/h is pretty reasonable if phone was in use from time to time.
Base rule with BBS is to check batery over night, when it is not used at all.
Under those circumstances you should see 0.1-03%/h and that is completely fine.

F308 said:
Changing ROM will not help in most cases if you won't discover what is eating battery.
I am on the same above ROM and kernel and I don't complain.
Term 'fast' is not much precise, either.
BTW:
1.3%/h is pretty reasonable if phone was in use from time to time.
Base rule with BBS is to check batery over night, when it is not used at all.
Under those circumstances you should see 0.1-03%/h and that is completely fine.
Click to expand...
Click to collapse
how about dropping from 60% to 6% fast? that's my battery problem.

eumanoid said:
how about dropping from 60% to 6% fast? that's my battery problem.
Click to expand...
Click to collapse
As always - check that all automatic synchronizations are off.
google, pictures, facebook, whatsapp.
Hope you don't use WiFi all the time, nor you scan for available networks.
BetterBatteryStats is really helpful, read corresponging thread.

F308 said:
As always - check that all automatic synchronizations are off.
google, pictures, facebook, whatsapp.
Hope you don't use WiFi all the time, nor you scan for available networks.
BetterBatteryStats is really helpful, read corresponging thread.
Click to expand...
Click to collapse
i dont think using wifi and auto sync will drain my battery from 60% to 6% in just a second. Anyway, i ordered a replacement battery from witrigs. Hope this fixes my problem. Ive tried factory resets and repair through pc companion. still no improvement. Turning stamina mode improves my battery. It no longer drops 50% in a second, just 10%. Still way too low compared to my excellent battery life with kitkat. Before lollipop, i charge my phone every 2 days with heavy use. Now, i need to charge it twice a day with moderate use.

eumanoid said:
Still way too low compared to my excellent battery life with kitkat. Before lollipop, i charge my phone every 2 days with heavy use.
Click to expand...
Click to collapse
If so - I'd come back to KK before replacing battery, if for no other reason then to prove LP is guilty.
BTW:
Long ago I decided not to upgrade to LP.
Looks like evey step ahead is in real life step back.
Everything is more complicated, wants more maintenance, yet works worse than old simple tools.

jserrano15 said:
Hello, what's your android version and firmware build number? I would like to use it because i'm on 4.4.4 build 14.4.A.0.108 and I'm experiencing fast battery drain.
Click to expand...
Click to collapse
This with additional adblocker :angel:
And removed alot of bloatware and sony apps I don't need.

[Q] 5.0 extreme battery usage

I loaded the 5.0 factory image last week and my battery usage has been awful since. I am 100% stock. No root or mods at all.
Yesterday I took my fully charged N7 off the charger about noon. I hardly used it. Sent 3 emails and checked football scores a few times. 10 minutes use max. 95% of the time it was sitting with the screen off. By midnight it was almost dead. I have wifi off during sleep. This morning it's been off the charger for 2 hours and is down 20%. I have not used it at all other than to check the battery. Previously it would last 2-3 days between charges with light use. Not seeing anything standing out as using excessive amount of battery. Android System uses the most at 17%
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I know there was a wifi bug but I thought that was fixed prior to the release of the factory images. Strange thing is I have run all the L previews and currently a pre image release of a 5.0 AOSP rom on my N5 and I've had no issues at all.
Anyone else seeing this or have any suggestions?

I been looking for a thread like this. Coming from 4.4.4 all stock battery was great, I don't have any statistics but moving from 4.4.4 to 5.0 still stock no-root, the device gets really warm and battery drop isn't very comforting.
I hear the nexus 9 also gets very warm, must be a 5.0 bug.

5.0 with NRT Sideload update and no issue with battery nor wifi. I loose max 1% by hour in the night ! As I have a little use I can keep it during 3 days without charge !

hokuto34 said:
5.0 with NRT Sideload update and no issue with battery nor wifi. I loose max 1% by hour in the night ! As I have a little use I can keep it during 3 days without charge !
Click to expand...
Click to collapse
my friend 1% per hour is much
with wifi and sync all the time during night i get 0.1%/h
i confirm drain battery on 5.0 for nexus 7 unfortunatelly!

Same here. Pretty bad battery life with 5.0. Battery would not last more than a day. On 4.4.4 I can easily go 2 days.
Sent from my Nexus 7 using Tapatalk

61% left 1 day 11h

I was on XDABBED's rooted stock-image, the battery usage was as bad as the OP's situation.
Since then, I moved to XDABBED's latest AOSP release ... the battery usage has been GREAT.

Also on stock and I can confirm that the battery is worse.
Previously on stock 4.4.4 I had calculated that 10% battery can get me through one day or one hour SOT.
After flashing factory image I can confirm that the most I can manage is 4-5 hours SOT in two days.
That's 30-40% higher battery consumption.

why don't you download an App Ops tool from google play store
and deactivate any location service.
Currently, there are not that many app ops tool that can support lollipop.
One from Lars Team works on Lollipop, so I am using that.
For me, google play service was using extensive amount of power for location search,
and after I turned down location search capability of google play service, the power drainage stopped.

Same Issue
Yes I am also facing the same problem. Terrible battery time. I charged my Tablet yesterday and pulled it out at 100% at 10pm. I put it on Airplane mode and went to sleep. When I woke up today at 6am the battery was showing 70%. It ate 30% at night doing what? I am very disappointed. On Kitkat 4.4.4 I never had such terrible battery performance. I am going to try it out today again and ensure that all apps are closed. Lets see what the performance will be like. Will update tomorrow.

I loaded Battery Batter Stats last night and left unplugged overnight so that I could check for partial wake-locks this morning. Unfortunately the battery was completely dead when I woke up. I put it on the charger when I left for work so I can check tonight.

nike984 said:
One from Lars Team works on Lollipop, so I am using that.
Click to expand...
Click to collapse
i followed your advice i disabled the location query and the right to keep the device awake and will report later tha night or tomorrow :good:

I can confirm that the tablet gets a little bit warmer with Android L and that was just Initial Setup, idk yet about battery I will fully charge tonight and test tomorrow.

nike984 said:
why don't you download an App Ops tool from google play store
and deactivate any location service.
Currently, there are not that many app ops tool that can support lollipop.
One from Lars Team works on Lollipop, so I am using that.
For me, google play service was using extensive amount of power for location search,
and after I turned down location search capability of google play service, the power drainage stopped.
Click to expand...
Click to collapse
This was a good advice I must admit [emoji4]
I installed App Ops and noticed huge Location usage from Android System. After I disabled this the battery drain is a lot smaller. Not as good ad KK but very tolerable.
Also noticed that my video player, Archos, is using more power on Lollipop that before. I use it same or less than on KK but it drains the battery a lot more and is always at the top in battery usage.