Database Develop

[Q] Battery life question - are there different battery versions?

Hello all,
I have a brand new Galaxy Tab ( three full charges so far) - and I get quite different results re. battery life then others.
Then again: I read some posts with really long batt life, and others with shorter.
I have Gingerbread - Overcome RC1 installed, and I in about 1.5 hours use ( no 3G, some wifi, medium backlight; time spent mainly installing / removing apps, some games, some email and web browsing) I am at 75%.
When the unit is fully charged, after I switch it on it goes to 99% immediately (I see 100% maybe for less than a minute). This morning I am at about 65% battery life, with about 2 hours use. ( I have erased the battery stats after installing the Overcome rom).
When not using the unit for several hours (for example over night): I do a complete shut-down.
Now others seem to get significantly longer run times.
Is it possible that there are (at least) two versions of the GT, one with better battery the other one with weaker battery?
Or do I have a defective unit and should I try to return it? ( I am within the 30 days return policy, and could go for an exchange)?
Or is my experience totally normal, and the "really long" battery lifes are more the exception?
Or will my battery life get longer after a few more charge / recharge cycles?
I would appreciate any feedback!
Thank you!

People claiming better battery life are running custom firmwares, have their cpu moderated, and have pulled all kinde of tricks to achieve this.
Also, your battery has to "settle"
Sent from my GT-P1000 using XDA Premium App

Thank you for the reply.
I am also using a custom firmware but no other tricks (slowing CPU etc.)
So my unit is then probably normal?
How long does it take for the battery to reach full capacity?

I think I will return the GT for replacement...
Another update.
Yesterday, I have done a full recycle ( fully empty the battery and fully recharge).
Today, when I started to use it, within 50 minutes the battery level went to 80%.
I have removed now all apps, all widgets etc ( factory fresh gingerbread) and I will fully charge and then reset the battery memory within CW.
Lets see how that goes... but I start to worry now as my return period has just passed ( 14 days from purchase) - so I may be stuck with a unit with a battery problem...

I would reccomend to stop delete battery stat everytime now and then. Another thing is please wait few cycles so battery will settle down as someone said. When I got my SGT for the first time I was quite worried that my battery drain so quick. Simple internet browsing over wifi last for 3-4h. Later on I found tha some apps sync itself constantly, name pulse, weather widgets, rss readers etc. Ive check the apps and disable auto sync. Also moving from 2.2 to 2.3 gives me huge boost and make battery last muuch longer.
Sent from my GT-P1000 using XDA App

Thank you. Lets hope you are right.

Install the version beta2. The battery on it lasts much longer. I checked and returned to the beta2 since RC1. Only first JJ4, then JQ1 and beta2. My English is not good, so I apologize if I wrote something wrong

Wow. That is an interesting theory. I will definitely test: you well may be right. I have used beta2 only for a short time, but I think the battery did last longer...

In beta2 worked for 11 hours. The RC1 is less than 7 hours. A friend has the same. Both went back to beta2. Wi-fi enabled, much inernet ,radio, Google mail, mp3. Used on a single chargefor more than iPad

Same problem here..
Strange it is. .
So far i know. .
Battery life is always been the hillarious thing ever, on a smartphone..!!!
Hehehe. . .
Sent from my GT-P1000T using XDA Premium App

For me it has always been a big differens in battery life after a couple of weeks when the battery is performing better.
In the beginning with stock rom i barely got trough one day with heavy use.
Now its no problem getting trough two days of heavy use. Using Overcomes (rc1) latest rom.

Gadgetguy2005 said:
Thank you. Lets hope you are right.
Click to expand...
Click to collapse
I would deffinitelly recommend going back to beta2 as in my case on rc1 I was able to get maximum 7-8 hours when switching to beta2 gave me at least 12 hours. At the moment when not extensively using the tab I am able to get around 60 hours.
ps1
as someone mentioned before pleae stop erasing batterystats.bin
ps2
Do not try to install beta2 on rc1 as it wil cause you a lot of problems. Start with jq1 at least and then beta2.

Hello,
I had the same problem too, but I have resolved it now.
I started by browsing this thread:
http://forum.xda-developers.com/showthread.php?t=986067&highlight=false+status
Then I opened up my tab and disconnected battery for 30 mins. Reconnect and close up and that fixed the problem permanently.
For some people, flashing overcome 2.0 rc1 solved their issues.
Hope that helped.

jpanggy said:
Hello,
I had the same problem too, but I have resolved it now.
I started by browsing this thread:
http://forum.xda-developers.com/show...t=false+status
Then I opened up my tab and disconnected battery for 30 mins. Reconnect and close up and that fixed the problem permanently.
For some people, flashing overcome 2.0 rc1 solved their issues.
Hope that helped.
Click to expand...
Click to collapse
Link does not work. Please correct if you can.

Link Fixed

Thank you all. I will just wait for the next overcome release: i hope tht will give longer run times.

Battery drain after installing MIUI

Hi, I recently installed MIUI 3 and seem to be getting some problems with battery life.
What I've done so far:-
-Installed MIUI 3 with the SpeedMod kernal (as directed in the manual). Battery life dropped to 12hrs
-Reset battery stats, no change
-Installed MIUI 3.3. Battery went back up to ~30hrs
I thought 3.3 fixed it but after a day the battery life dropped by half. After another day it dropped by half again. Now it's only lasting 6hrs, and when on charge it doesn't reach 100% charged but stays at 98% even overnight.
What is going on with this thing?

Half of MIUI threads is about battery drain. There is no solution until now.

yken said:
Half of MIUI threads is about battery drain. There is no solution until now.
Click to expand...
Click to collapse
They're all like 1 year old. The battery was supposedly fixed in the latest release, and I know someone with the same phone, using MIUI, and they don't have this problem.
I think it might be something to do with the speedmod kernel. I don't know anything about the compatibility of kernels and MIUI so i just followed the instructions in the manual and used speedmod

I don't really know what's going on... in my phone the battery lasts for around 60 hours, maybe more, whatever rom/kernel I've used...
I've been using all of galnet's muiu and still have to find a battery issue. In my particular case, I don't use GPS, so it's off all the time. I don't think that's the issue though...

It's a known issue of CM7/MIUI.
no solution at the moment

Sorry but what is CM7?
And if there's no solution, how can someone with the same model phone not have the same issue?...

MIUI has battery problem and its not solved. If you disable data, gps, sync...
it saves some.

I will look into that and try to help!

jguedj said:
I will look into that and try to help!
Click to expand...
Click to collapse
The 5th thread you have posted this reply to in the last 2 hours?! Why?!
Sent from my GT-I9000 using XDA Premium App

So everyone using MIUI puts up with a battery only lasting 6 hours and my friend is lying to me? >_>
btw disabling data doesn't make that much difference.

madcap_ said:
So everyone using MIUI puts up with a battery only lasting 6 hours and my friend is lying to me? >_>
btw disabling data doesn't make that much difference.
Click to expand...
Click to collapse
I think that this is as much a cm7 thing, as anything else, and most people just tweak and seek til they find a combination of things that work, so worth looking in rhe relevant threads and reading back
Sent from my GT-I9000 using XDA Premium App

Well for anyone interested I found the problem. I tried flashing with the latest SpeedMod kernel, phone wouldn't boot, and I had to reflash the entire bootloader with MIUI's modified Froyo
Now the problem I noticed when I went to install MIUI.. the zip on my phone was 2.2 instead of 3.2.
NFI how I ended up with that outdated version! So the latest 3.3 seems to have fixed it now. Phone has been on for almost 20 hours and only dropped 30% in battery. That's more like it.
Although this did happen the first time, it seemed OK and then kept dropping by half capacity each day.. But if I really was somehow using 2.2 then hopefully that's all it was

I found out yesterday that my phone doesnt really go idle because of some google process waking my phone notoriously, and probably thats why it uses more battery. I also have very week signal (only 3g) which makes my phone use more battery than normal, but on non cm7 roms i made it one day with no problem. Right now I'm on galnet's miui and this is really fantastic rom, but battery wont last one day in my case. So the idle problem is the case i think... yesterday I closed gapps process before i went to sleep, and my phone was sleeping nicely too This process is caused by android market, and miui doesnt close it up. I also freezed gmaps - someone in galnets thread said it also drains battery. Well I'll see in few days how the battery will behave.

madcap_ said:
Hi, I recently installed MIUI 3 and seem to be getting some problems with battery life.
What I've done so far:-
-Installed MIUI 3 with the SpeedMod kernal (as directed in the manual). Battery life dropped to 12hrs
-Reset battery stats, no change
-Installed MIUI 3.3. Battery went back up to ~30hrs
I thought 3.3 fixed it but after a day the battery life dropped by half. After another day it dropped by half again. Now it's only lasting 6hrs, and when on charge it doesn't reach 100% charged but stays at 98% even overnight.
What is going on with this thing?
Click to expand...
Click to collapse
Also Battery Calibration.apk (can be found in market) works to calibrate your battery properly.

56hrs without recharging, 22% battery still remaining. So clearly it's not a problem with CM or MIUI any more

I have exactly the same problem.. tried the battery callibration app..also tried the wipe battery stats article.. i ve finished recharging 100% 2hours ago... now my phone is 55%..no gps no games.. 2 phone calls for 2min each.. i love the rom and hate the battery
sgs i9000..miui v4 with its kernel

madcap_ said:
56hrs without recharging, 22% battery still remaining. So clearly it's not a problem with CM or MIUI any more
Click to expand...
Click to collapse
HOW??????????????????

[ROM]Cyanogen Mod 6.3.8 - Massive Battery drain

Hi all,
I'm and oldbie that has installed allmost all the roms that avilable to milestone.
last one was ICS from kabaldan, wich i find it working very slow..
before i was at CM7 for allmost half a year and it was working good but not fast as all mantiond here..
than i moved to cm6 6.3.8.. Perfect Speed allmost, 0 stucks, stable and look nice.
but the batterry is draining like no tomorow..
i found myself with 10% Bat on the late afternon without and spesific stuff..
any sagustions?
thanks :>

Try turning off 3G in Mobile Networks. I believe this thing fixed this problem on my phone.

but when i was at CM7 the 3g was working non stop ..
why is there a big differance?

I have no idea, honestly. Did this fix the issue?

Nop this dident fix it..
the battery usage is on display (?!) and android OS (that i btw removed a few of apks that was causing battery drain on the android os menu)

Install CPU Spy from the Market and see whether the device is going to deep sleep or it's staying at the min frequency.

so ive been at this all day reading and searching these forums with no luck.
i have a droid one, running 2.2.3 FRK76, bought the phone used. says it has kernel version 2.6.32.9-g68eeef5. no clue what this is.
have tried to root with superoneclick with rageagainstcage option clicked. also tried the one click some one had posted on this site in one of the forums. Sd card is unmounted. debugg mode is selected. and i cant get past first time it says waiting for device. what do i do?

Also try better battery stats and see if an app is running a lot. Different phone, but I had save problem and it read google maps check in service. Also did you calibrate your battery it helps
Sent from Tyler`s Tweaked Charge

[Q] Phone runs hot, High Drain - All usual fixes tested.

Device: Samsung Galaxy S GT i9000
Symptoms:
When Charging Device is hot to the Touch in the upper half of the screen and on the rear between the camera and the heat vent.
Battery drains at around 15-25% per hour when IDLE. 15% when in deep sleep in airplane mode with ALL APPS KILLED. 25% when I leave ALL network connections open and allow sync.
Phone was new less than 2 months ago. Still under warranty and I will send it back if no ideas come from this but wanted to see if anyone had a solution as I have noticed HUNDREDS of similar posts all vaguely scattered through different threads on different sites around the web and this seems like the definitive place to come to see if anyone can put their finger on it.
When did this occur?:
A short while after (days) of flashing CM9 nightly from the beginning of June (05/06 I think but can't recall exactly).
Tests performed:
Purchased new battery and fully charged - no change.
Flashed stock GB ROMs where the issue had not occured - no change.
Cleared battery stats several times - no change.
Tried different modems/radios including Nexus S radios- no result
Current ROM: CM 7.2
Kernel: Glitch 13.1
Other ROMs/Kernels where the same results were achieved...
CM9 (latest nightlies)
Stock JVU, JVS, JW4 and JW5
Semaphore Kernel, Devils Kernel
I use Voodoo Sound/Colour kernels apart from the testing I did with stock ROMs
Will leave it on over night after clearing stats so you can see for yourselves.
Any questions ask away.

I should add:
Used OS Monitor and one of the more detailed CPU monitors to look at what was going on.
Did not appear at any time to be using what I would consider high CPU utilisation, typically trending between 0 and 30ish. No background apps running, all radios turned off.
The only anomaly that stuck out at me is that system_server was using ~105% of RAM which I would have thought was rather difficult. Made me wonder if there was something loading/unloading itself from RAM.
As I am a heavy music user I have tested the Mediaserver issue where corrupt files are continually scanned by mediaserver process. Removed all media files from both my external and internal storage then formatted both while on a stock ROM (JVU and JW4). There was no change.
EDIT: I should add - The thing that makes this so strange to me is that the battery decreases at a rapid rate when Battery stats regarding usage DO NOT CHANGE. The percentages for the apps that WERE using the battery - i.e. winamp/mediaserver/android system do not change.
The reason I have posted this is that i have seen literally HUNDREDS of people posting this very same issue but never in the same place and never getting an answer.
Also - Thankyou to the kind mod/admin who approved my account so I can edit stuff. It was getting a bit annoying for the first week there.

Re
Hi,
To be honest I never heard/read of the problem you are describing. Most users report high battery drain on a certain ROM/kernel/modem but you say you have tried quite a lot.
If the phone is new, the only thing that comes to mind is that the USB charging socket is faulty. It may not charge properly or even have some bad connectors that are damaging the battery.
In any case, Samsung support is the way to go here.
Hope this helps

OMG, im having the same exact problem... the phone is super hot on the back where the sim card is inserted. I did everything as you, still no change, my battery lasts like 7 hours on deep sleep. Guess our phone is broken. super crap.

Anyone knows how to fix this? Is there anyway that my phone has some files from previous custom roms even though used odin to flash samsung original ones?

Had the same problem when my device was only 6 months old, the battery was becoming faulty, got a new battery and problem solved.

I bought a new battery and i still have the same problem... which battery did u get?

streakpt said:
I bought a new battery and i still have the same problem... which battery did u get?
Click to expand...
Click to collapse
An official samsung battery from Amazon, re flash you device with another rom and wipe battery stats.

Did all that, the problem still continues... mega battery drain and the phone is at 44C degrees... is there any tool i can use to diagnose the problem?

Hi snaleman,
You could try BetterBatteryStats, to help diagnose your issue further, there is a paid version on the market (Google Play Store). There is also a thread on this forum, from the dev....hint
I tried winamp for android, ages ago, but had similar issues. (This player might well be your issue.) So I now use "PowerAmp". Neutron MP is cool too.
Also, do you use lippol94's kernel cleaning script. I use this every kernel/ROM change.
Search here for this:
ultimate_kernel_cleaning_script
Hope this info helps your baby.

Hey
U can try to flash a stock rom from sammmobile.com..
Use it for a few days and check...may help u..
Cheers
Sent from my GT-I9000 using xda app-developers app

Backup your apps with titanium backup or something else.
Make a backup from CWM recovery
Wipe data/cache/dalvik
Restore user apps and not system app
If your problem is not fixed you can restore your CWM backup

Nothing you guys posted worked... battery lasts 11 hours on sleep...

Another problem that im facing is that when im on a phone call, theres is alot of breaks in the other persons voice and sometimes the voice call goes out and i lose all my network signal.

If you are using the Voodoo sound app that may be the cause. I've noticed on my phone that deep sleep no longer works when the voodoo app is installed, most likely the app is holding a partial wake lock and not releasing it.
See if it happens with the app uninstalled or frozen.
Sent from my Nexus 7 using Tapatalk 2

Signal Strength¿
streakpt said:
Another problem that im facing is that when im on a phone call, theres is alot of breaks in the other persons voice and sometimes the voice call goes out and i lose all my network signal.
Click to expand...
Click to collapse
You've just made me think of something else that it may be.
Do you have 4 or 5 bars of signal strength?
I've found when in certain areas (very close to "deadspots" in network reception), that if I use another frequency, [eg. 900 & 2100 (for my network), yours may be different] I can get a better signal, also much better battery life, as the phone is not struggling to reach the network.
If you use your dialer to enter this code
*#*#197328640#*#*
Then
[1] DEBUG SCREEN
THEN
[8] PHONE CONTROL
then
[7] NETWORK CONTROL
then
[2] BAND SELECTION
you will then have a selection of frequencies available. The asterisk * will tell you what one(s) is/are active.
"Google" your network service providers frequency bands. I found mine were on a "Wiki" page.

[Q] Battery health

Hi, I would like to know the best way to measure my battery health. For about a month my battery starts to drain fast. I know my phone is already old and battery don't handle the same charge, but I have recharged the phone all night long and in ten minutes using wifi to just update some apps the battery just gone.
It is just ridiculous as I don't use any different configuration.
To be more specific, my phone configurations are:
- Cyanogenmod 7.2 by vo-1 (31/06/2012) deodexed by me;
- Firekernel Unnoficial OC (22/07/2012), CPU governor: smartassv2, max 787, min 245;
- Adrenaline Engine 4.2b;
One more thing. I was facing the same problem with blackhawk kernel.
I just think a battery can't die a sudden.
Could anyone help me with this?

Floydroider said:
Hi, I would like to know the best way to measure my battery health. For about a month my battery starts to drain fast. I know my phone is already old and battery don't handle the same charge, but I have recharged the phone all night long and in ten minutes using wifi to just update some apps the battery just gone.
It is just ridiculous as I don't use any different configuration.
To be more specific, my phone configurations are:
- Cyanogenmod 7.2 by vo-1 (31/06/2012) deodexed by me;
- Firekernel Unnoficial OC (22/07/2012), CPU governor: smartassv2, max 787, min 245;
- Adrenaline Engine 4.2b;
One more thing. I was facing the same problem with blackhawk kernel.
I just think a battery can't die a sudden.
Could anyone help me with this?
Click to expand...
Click to collapse
There are a few things that can be causing this, but the first thing that you can try is to wipe your battery stats using "BatteryCalibration" app. After flashing a few things, it's best to do this. I had the same thing happen after flashing my third ROM or so.
After that, it basically comes down to the apps and widgets that you have running. Shut them off with a task manager so they don't end up draining your battery, but it might not be that either....
The only other thing that I can think of is that I heard in another thread (I really wish that I could find it again ) that the ace has a motherboard fault that causes it to drain faster than usual.
Other than that, all I can say is that the Ace generally has poor battery life, and it really does suck, but I don't really know how much more you can do. You could try flashing a stock-light ROM and see if it does the same thing (wipe battery stats too). But I would say is that you should try wiping the stats and see if anything changes.... Other than that.... I`m out. Hopefully it helps, and if it doesn`t, you might need to take it in (Service Center or wherever you bought the phone).
Maybe try searching in other threads (as it is a common problem) but besides that, goodluck :fingers-crossed:

thatdude02 said:
There are a few things that can be causing this, but the first thing that you can try is to wipe your battery stats using "BatteryCalibration" app. After flashing a few things, it's best to do this. I had the same thing happen after flashing my third ROM or so.
Click to expand...
Click to collapse
I forgot to mention but I already did the calibration, using the app and manually to see if I could get different results.
I even tried to force a better charge, charging the phone off, waiting till 100%, unplugging and recharging, till the phone gets 100% again.
Ace's battery isn't good, but a month ago my phone was holding 12-14 hours without charge, using wifi a lot, that's why I think something is wrong.
Well, I'm flashing the original stock rom to see if get some change.
Thanks about the motherboard information, this is new for me :good:
Gonna see tomorrow if the battery holds better with the original stock ROM.
Thanks again!

Wiping the battery stats is a myth. All it does it clear the battery usage screen!
Android has a built in tool which can try to check the health of your battery.
Open the dialer
type *#*#4636#*#*
then go to battery information
Look at battery health.

Feedback
Just to give a feedback, my battery was really damaged. I bought a new one, stock because I didn't find other, and the phone now easily last a day, even using wifi a lot.
But that's not the only reason why I posting here again, I want to share how my old battery is. Comparing with new one, I realized that the old battery had stuffed something about 5 mm
If you pay attention, you'll see the small deformation.
Don't know yet what could have cause this, but I think it was heat and bad recharges...
Thanks for the help :good:

Floydroider said:
Just to give a feedback, my battery was really damaged. I bought a new one, stock because I didn't find other, and the phone now easily last a day, even using wifi a lot.
But that's not the only reason why I posting here again, I want to share how my old battery is. Comparing with new one, I realized that the old battery had stuffed something about 5 mm
If you pay attention, you'll see the small deformation.
Don't know yet what could have cause this, but I think it was heat and bad recharges...
Thanks for the help :good:
Click to expand...
Click to collapse
I'd recommend you to use SetCPU to prevent this on your new battery. Set up a profile with sound notification when it hits around 40degree, and underclock it at the same time.

I faced a similar problem. Battery was hardly six months old when it died but it was my fault. I was running a wi-fi tether and continuously charging it for about two days. :silly:
Got a new one under warranty. Been a year with the new battery and just recently facing problems with it. 3G just sucks the life out of it.

OK I just got 3g on my phone (yay for promotional 6gb plans!). But yeah, the 3g definitely kills my battery. I used to be able to go two or three days with very little use. Now I can only go one day even with standby with my 3g enabled. As long as I can put my phone on to charge before it dies, its all good to me
Finally with my 3g going, I understand everyone else's pain with the battery life haha
Sent from my GT-S5830 using xda premium