Major Battery issues - Nexus 7 Q&A, Help & Troubleshooting

Ok so let start off by saying i have posted my problem on other threads and havnt got a reply.
this all started since i updated to 4.1.2 battery life sucks it drains way to quick when i check battery status its says android os 40%-50% (it once reached 62%) i erased the tablet and still the samething, i then flashed stock images samething. now i running CM 10 and its around 20%-30%, its either 4.1.2 has this bug or my tablet is bad, any advice will be appreciated
Thanks

Could it be any apps you've got installed?

I only have Google apps installed

Bump, no has any ideas??

Have you been watching battery stats. Get gbat app from play store run it in background thru a few change cycles it will show exactly what is using your battery.
Nobody can help without more information

erica_renee said:
Have you been watching battery stats. Get gbat app from play store run it in background thru a few change cycles it will show exactly what is using your battery.
Nobody can help without more information
Click to expand...
Click to collapse
That app will tell the bad app i have installed? and in settings under battery is says Android OS around 50%-60%

I will give you stats to diagnosis the trouble.
Have you tried to factory reset the tablet.
What amount of Android knowledge do you have. Seems like you have a auto task killer running in background. Or a very rogue app. Start posting some info and not just please fix. The advice you get it only as good as the info of the issue your having. This is why you are not getting good solid help.
Hope you understand.

erica_renee said:
I will give you stats to diagnosis the trouble.
Have you tried to factory reset the tablet.
What amount of Android knowledge do you have. Seems like you have a auto task killer running in background. Or a very rogue app. Start posting some info and not just please fix. The advice you get it only as good as the info of the issue your having. This is why you are not getting good solid help.
Hope you understand.
Click to expand...
Click to collapse
I understand. Okay this all started the moment i updated to 4.1.2 which was sideloaded through adb, it started going up and stayed around 40%, I dont run a task killer, i factory rested the tablet same thing i then swith CM 10 Nightly and was worse around 50%-60% so i went back to stock. app wise the apps i have installed are the sameones that were on 4.1.1 had no problem. let me know if you need more info.
Thanks

Bump... i guess this is a very uncommon issue

Ram1500 said:
Bump... i guess this is a very uncommon issue
Click to expand...
Click to collapse
Get better battery stats to check the wakelocks. You might have a rogue app.
Sent from my Nexus 7 using xda premium

kilometers4 said:
Get better battery stats to check the wakelocks. You might have a rogue app.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
what battery stats do you recommend?

Ram1500 said:
what battery stats do you recommend?
Click to expand...
Click to collapse
The app is called better battery stats. It's a paid app on the play store, or if you search the app section it's free
Sent from my Nexus 7 using xda premium

Related

Specific battery usage information.

Hey all.
Does anyone know of a (preferably free) app which can give accurate information on what's draining your battery?
The inbuilt battery info screen is useless... just tells me its all the display, which I know isn't true.
I just found out that certain apps are constantly running and might be hitting the battery, even though they don't show as running in task manager. PowerAmp for example. I just replaced it with WinAmp to see how that works out, but how do I know it isn't doing the same thing?
I need to be accurately told what is draining my battery so I can make smart choices as to what to remove. Anyone have any experience with this?
Sent from my SGH-T959 using XDA App
try system panel
SGS Vibrant - XDA App
Thanks. I just installed it. Nice bit of software. Shows me what's running... skype, quickoffice and titanium all have processes running after reboot even though they are not active...
What it doesn't show me is which of these background processes is using the most battery.
Is there anything that will do that?
Sent from my SGH-T959 using XDA App
Yes, the paid version. It will show you which processes are using the most CPU (which translates into battery consumption). It's a massively awesome, very well coded app that is worth the $2.99

[SOLUTION] Fast battery drain fix in XGin 4 (possibly also in other 2.3 ROMs)

So, I started using XGin 4 2 weeks ago. Very great ROM with no bugs at all but I noticed that the battery was draining quite fast. During the night, with airplane mode on, the battery consumption was 10%. With other ROMs such as Floyo, I had just 1% drain or maybe even none. At first I thought the problem was Google Maps as it was always running in the background. I froze the app but nothing changed. Then, I froze the Email app (email.apk not gmail.apk) and then...massive difference. I would keep surfing the internet, playing games and so, the battery would remain the same. Battery loss during the night, 1%. No trace at the awake time bar!!! I can go now 4 days till the battery dies.
I heard that in XGin 5 there is a battery drain fix but I haven't tested it yet.
So, if you have fast battery drain, try freezing the email.apk and use another email app such as K-9.
EDIT: Forgot to mention that when I froze the email app, Google maps was already frozen. Both apps are frozen now. I don't know if the battery drain will change if you freeze just the email app.
Freeze those apps using AntTek app manager from the market.
Can you tell me how to froze that apps please?? , thanks
leonardv128 said:
Can you tell me how to froze that apps please?? , thanks
Click to expand...
Click to collapse
Search the Android market for AntTek app manager. It's the only free app that can freeze apps.
I dont have email.apk wtf? I just have gmail.apk
Sent from my X8 using Tapatalk
Im using xgin 5.1
Sent from my X8 using Tapatalk
I tested it this night.
7hours and 25% drain.
That's a shame.
Need to test your solution tonight.
Anyone tried it? Feedback would be appreciated!
Where i can download this ROM ?
LegoGabi said:
Where i can download this ROM ?
Click to expand...
Click to collapse
Here: http://shpitisme.blogspot.com/
I wiped battery stats and froze the email app lastnight and I've seen a huge improvement in battery life today. I've used 10% battery today instead of my usual 25-30%. Thank you for this tip.
Sent from my X8 using XDA App
Hmm so why when i use xgin 5.1 i dont have email.apk wtf ?!
Sent from my X8 using Tapatalk
I froze map and 7h 5% drain. I can't freeze mail since I'm using this.
Sent from my X8 using XDA App
oskarq said:
I froze map and 7h 5% drain. I can't freeze mail since I'm using this.
Sent from my X8 using XDA App
Click to expand...
Click to collapse
Use K-9 instead and disable auto-refresh.
Chris95X8 said:
Use K-9 instead and disable auto-refresh.
Click to expand...
Click to collapse
Why K-9 is better when sync n 3G is off?
Sent from my X8 using XDA App
oskarq said:
Why K-9 is better when sync n 3G is off?
Sent from my X8 using XDA App
Click to expand...
Click to collapse
Maybe because K9 is not a system app it may not start by itself but I've never used K9 before so I can't guarantee you anything.
I tested the solution. No improvement. I'm using XGin 5.1, the undervolt option is on, I froze the mail apk, I'm not using 3G 'cause it drains a lot of battery. I don't know what else to freeze. I also froze the maps.apk. Still no improvement.
I will give another try after I fully charge the phone.
Cheers!
Gmail and map is frozen.
8h = 7% drain.
Sync and 3G is off.
Generally freezing Gmail didn't help me more than before.
However map is consuming a lot of energy.
So, I will keep map frozen and that's fair enough.
oskarq said:
Gmail and map is frozen.
8h = 7% drain.
Sync and 3G is off.
Generally freezing Gmail didn't help me more than before.
However map is consuming a lot of energy.
So, I will keep map frozen and that's fair enough.
Click to expand...
Click to collapse
Gmail is not consuming battery. Email is!
Sent from my X8 using XDA App
Chris95X8 said:
Gmail is not consuming battery. Email is!
Click to expand...
Click to collapse
I can't find email/mail apk through root uninstaller.
This has worked so well for me. I'm on my third day without charging and still have 31% battery! That's with a little less use than normal but I'm still very impressed and happy with the results!

Qualcomm BatteryGuru vs. Greenify

Can't sleep tonight so just researching apps this morning. Have you guys or gals used either? Do you recommend one over the other?
BatteryGuru is officially made by Qualcomm so you would expect it to be pretty key to phone optimisation. Also it didn't require root.
Greenify had received many great reviews and the author is constantly updating which is good. Requires root however.
Thanks!
Sent via my Samsung Galaxy S4 using xda app
Greenify here and happy
I'm running battery guru and it works quite well, it'll take about 5 days to give you some savings, but it works. I'm way more impressed then I ever though I'd be...
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Questions and help issues go in Q&A
Thread moved
Using Greenify, works great.
Sent from my Galaxy S4
Thanks guys, I appreciate the feedback. I'm testing Snapdragon BatteryGuru so far but still learning and will let you know how it helps. Scared to root yet!
Sent via my Samsung Galaxy S4 using xda app
Khalsa4G said:
Thanks guys, I appreciate the feedback. I'm testing Snapdragon BatteryGuru so far but still learning and will let you know how it helps. Scared to root yet!
Sent via my Samsung Galaxy S4 using xda app
Click to expand...
Click to collapse
No real reason to be scared to root any more. We have the stock images in case you soft brick, boot loop, etc. I was worried to, but it was an extremely simple and quick root process. You just plug in the phone and your rooted after a couple mouse clicks
Also, I recommend freezing the ota applications in TiBu. Never know when at&t may send an OTA that could patch the boot loader exploit. Better be safe than sorry with this one.
Sorry to drag the thread off topic. Just thought I would throw in my $.02 after your comment on rooting. Best of luck
-------------------------------------------------------
Sent from my AT&T Galaxy S4 - Stock 4.2.2 Rooted
How does that greenify app work? Say you select all your apps, and then it hibernates them does it wake up when needed or if you get a message or notification?
The app specifically says not to enable apps that have certain notifications such as SMS and whatnot, so I would make sure that you don't do it to apps that you need to be notified.
SysAdmNj said:
How does that greenify app work? Say you select all your apps, and then it hibernates them does it wake up when needed or if you get a message or notification?
Click to expand...
Click to collapse
They will wake up when you open them, then hibernate when you close them. Basically if you use it for all apps expect to not mulitask at all (looking at messages, wont recieve phone calls; looking at Internet, wont recieve SMS)
If you have to use either one you don't know how to save your battery. Get better battery stats and learn what is causing your battery drain. These apps only use battery.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
jd1639 said:
If you have to use either one you don't know how to save your battery. Get better battery stats and learn what is causing your battery drain. These apps only use battery.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
Greenify uses a lot less battery then tons of bad apps running. I like using Facebook app but couldn't careless about the notifications and such. Yes I coukd go in and stop them but not all apps let me (cnet for example) so having a single place to hibernate the apps I dont want running in the background is nice.

Strange battery problem 100℅ to 0℅ straight

Since the update from jellybean to KITKAT I've had this peculiar problem with the phone. The battery drops overnight from 100℅ to 0℅ say withing 6-7 hours. First time the juice was sucked out of the battery by whatsapp and this time its Google search. I'm on stock 4.4 KRT16S. Please help me. Posting screenshots along.
I'm using ART runtime as well. An its happened since I switched from dalvik. So can anybody explain and give me a solution.
Sent from my Nexus 4 using xda app-developers app
No one??
rhishavphukan said:
No one??
Click to expand...
Click to collapse
I have the very same problem and I have not found any solution.I'm only able to stop the drain by killing the app after everytime I use it.Did you find a solution?
Slayslot said:
I have the very same problem and I have not found any solution.I'm only able to stop the drain by killing the app after everytime I use it.Did you find a solution?
Click to expand...
Click to collapse
Are you using google launcher experience? if yes, probabily you will have to disable it and install another one. Another thing you should do is go in location services and turn all off, this should solve your problem.
bett3rthan said:
Are you using google launcher experience? if yes, probabily you will have to disable it and install another one. Another thing you should do is go in location services and turn all off, this should solve your problem.
Click to expand...
Click to collapse
I was using GEL when the problem started and I have uninstalled it but the problem didn't go away.And my location services are always off,unless I need to use maps.
Slayslot said:
I was using GEL when the problem started and I have uninstalled it but the problem didn't go away.And my location services are always off,unless I need to use maps.
Click to expand...
Click to collapse
Go in settings/apps/ look for google search and clear data/defaults/cache, this should work!
This problem has not occurred after the 4.4.2 update. But then anyways reset my phone and installed everything back again. Since then, I haven't had this problem. Using Google experience launcher v10.
bett3rthan said:
Go in settings/apps/ look for google search and clear data/defaults/cache, this should work!
Click to expand...
Click to collapse
Already done.. Uninstalled updates->Cleared data and then updated Google search again still it's not working
Sent from my Nexus 4 using Tapatalk
rhishavphukan said:
This problem has not occurred after the 4.4.2 update. But then anyways reset my phone and installed everything back again. Since then, I haven't had this problem. Using Google experience launcher v10.
Click to expand...
Click to collapse
I'm kind of keeping factory reset as a last resort.Because if I'm going to lose my data I might as well root at that point.And I even Tried updatding to 4.2.2 with the updates of Google search Uninstalled but it didn't work for me.. The drain is too much for me
Even reported it to Google. It's messed up how they let this pass because I've searched a lot and this issue is faced by many people and they have no solution but to Force stop the app or turn off Google Now
Edit:BTW Thanks both of you for replying so quickly
Sent from my Nexus 4 using Tapatalk
Slayslot said:
I'm kind of keeping factory reset as a last resort.Because if I'm going to lose my data I might as well root at that point.And I even Tried updatding to 4.2.2 with the updates of Google search Uninstalled but it didn't work for me.. The drain is too much for me
Even reported it to Google. It's messed up how they let this pass because I've searched a lot and this issue is faced by many people and they have no solution but to Force stop the app or turn off Google Now
Edit:BTW Thanks both of you for replying so quickly
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
If I were you I would make a clean flash of 4.4.2 factory image
Hmm, I'll research a bit more and wait for my majors to end. By then if I get nothing then that's what I'm going to have to do.
Sent from my Nexus 4 using Tapatalk
bett3rthan said:
If I were you I would make a clean flash of 4.4.2 factory image
Click to expand...
Click to collapse
I agree.
Happened again. So factory reset didn't help me.
Sent from my Nexus 4 using xda app-developers app

What to do after root and unlock

Could someone be kind enough to point me in the right direction. I've searched but can't seem to find the basic info. I have very little background in flashing and such.
I rooted my thunderbolt years ago with little guidance and than bought a rooted bionic. But now I'm lost with all the terms. Looking for somewhere that will explain what everything means so I can then choose what os to flash, and how to do it in recovery.
Thank you,
David
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
Right now there isn't a whole lot you can do until the devs port custom roms to our phone. They didn't know it was going to be possible to unlock our bootloader or root(after kitkat update) , and therefore didn't put much effort into later versions. At most, you can install the latest CWM and backup your current rom in preparation for if you decide to install custom roms. That's basically where I am right now.
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
You can freeze or remove the bloatware. Just make a backup first.
Sent from my DROID RAZR HD using Tapatalk
There is a list of the verified bloatware you can remove with titanium backup without breaking the phone. Just search "Razr HD bloatware" in the forum
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
Thanks guys!
T
By the looks of it, I should stay with stick KK for now? I have froze a few apps with titanium but looking for something to improve my battery. I'm going through battery in about 5 hours. I was getting 10-12 on JB. Still looking for a way to go back to JB.
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
davfed said:
Thanks guys!
T
By the looks of it, I should stay with stick KK for now? I have froze a few apps with titanium but looking for something to improve my battery. I'm going through battery in about 5 hours. I was getting 10-12 on JB. Still looking for a way to go back to JB.
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yes stick with KK for now. That's surprising that your battery is draining so fast now. Can you go to your battery usage and see what is sucking up most of your juice? I have heard others state that it took a few days for their phone to settle in after the upgrade (I personally think people were so excited for the new OS that they were just using their phone a lot more than they were before .) I know mine has been draining faster because I've been doing so many things with it since the update. I highly recommend the app "Greenify" since you are rooted. It will automatically hibernate any non-necessary background apps that suck up ram, battery, and data.
bill0405 said:
Yes stick with KK for now. That's surprising that your battery is draining so fast now. Can you go to your battery usage and see what is sucking up most of your juice? I have heard others state that it took a few days for their phone to settle in after the upgrade (I personally think people were so excited for the new OS that they were just using their phone a lot more than they were before .) I know mine has been draining faster because I've been doing so many things with it since the update. I highly recommend the app "Greenify" since you are rooted. It will automatically hibernate any non-necessary background apps that suck up ram, battery, and data.
Click to expand...
Click to collapse
Thank a lot for the info. This motocare is sucking up a lot of battery. Don't remember seeing it before. I'm searching now to see what it is and if I should freeze it or hibernate it. Just downloaded greenify and it seems like a great app. Thanks again for your input!!
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
davfed said:
Thank a lot for the info. This motocare is sucking up a lot of battery. Don't remember seeing it before. I'm searching now to see what it is and if I should freeze it or hibernate it. Just downloaded greenify and it seems like a great app. Thanks again for your input!!
Sent from my DROID RAZR HD using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Sure thing. When its all good and working...it should appear something like this
Agree on greenify. It is an truly awesome app for improving battery life! Better battery stats with root use enabled for checking wakelocks also. I had the same experience with motorcare. Major batterydrainer. Being able to properly disable apps, is worth rooting alone.

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