[Q] Rom Battery - General Questions and Answers

Hi, I flashed the Malice II Beta ROM onto my Samsung Galaxy S2 SGH-T989 last week. I love the ROM, but one major problem is that the battery drains extremely quickly. With data and wifi on, I lose one percent per every 2 minutes, and that's without apps open. Might I point out that I did calibrate my battery and the Malice ROM is said to increase battery life. I am currently going to flash on a different ROM (Juggernaut) and see if the problem persists.

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Battery life with Rogers vs At&t radios

Has anyone tried to see if there is a difference battery life wise between the stock At&t radio vs using the Rogers radio? I have been running the Rogers radio for at least a month and haven't had any issues with calls or data. I have been having baterry issues within the past couple of weeks and was thinking of using odin to stock to wipe everything and start from scratch to see if battery life would be better.
No problems here with the R radio. I'm almost back to battery life similar to what I had on the Nexus S. I've turned off LTE since I can't see any real benefit other than nifty speed tests. My 3G hits 12Mbs and that good enough. LTE eats battery. Getting on WiFI when possible also helps vs cell data. I've got 8 hours with 66% left right now. I can make 20 hours if I need to.
Are you stock or on a custom ROM? I just installed Alien and wiped battery stats so I'm going to try this out first. I formatted my system and wiped everything. Only thing I didn't do is TiBu any apps. I had a problem with my Atrix when I'd restore apps from TiBu, something would eat up the battery like crazy, but when I restored just the app it was ok.
I'm stock rooted and my battery life is fantastic..
I could probably get 2 days
I'm running custom based on Rogers rom. No CIQ or other fluff. Agreed that restoring across roms isn't always best. Normally not a problem but if you can just install fresh that eliminates that as a problem later. Give the battery stats a few days and charges before giving up. The first few charges with a new rom and battery stats reset never look as good as a few days later.

[Q] Battery Issues

Hi everyone, might of had this before but everyones seems to be a little different
I have the Galaxy i5800, (Galaxy 3/Apollo) and it was always fantastic, battery life, lag-free for the whole year i've had it.
I am running the Kyrillos' rom v10.6 which is CM7.2 based.
Since a few weeks ago, the battery has just been draining, like a hour of battery life even just in sleep mode, i have wiped Battery Stats, Cache (partition and the dalvik one), Factory Reset, pretty much everything in recovery mode. charged battery for 6-9 hours overnight from 0%. no difference, will still just drain drain drain.
Also, if you use the phone for a good 5 - 10 minutes doing for instance browsing the internet (Opera Mini) the phone will just turn off instantly (possible overheating CPU?)
I am not using GPS Wi-Fi, sometimes not even data network (3G). i don't understand how the battery is draining so fast, i have tried stock
2.1 and 2.2 roms and the same thing happened with those.
is it a problem with the phone (CPU or whatever) or the actual battery?
Sorry for the ramble but just wondered if the good lads on XDA could help! Thanks.
I too had the same issue,its due to your battery perhaps I changed my battery and now battery life is great(by great I mean 3 days approx)
Sent from my GT-I5801 using xda app-developers app
me too, help
i using CM7.2...this error: (
i've just bought a new charger and battery, the charger has already come, and for some reason battery has already increased haha!
got them both for under ten pounds altogether from amazon, really pleased with that
also flashed the phone back to stock 2.2 JPU firmware! can't complain really, might root it at some point but not too sure as i'm getting a nexus 4 when come back in stock!!
i will just use this phone as a backup phone or phone for download festival !
That may be a problem of battery as I changed by battery to a new one then it works awsm.....
From my awsm Galaxy 3.....
sounds like a problem with the battery.
it happened to me because of overflashing during development work.
replacing battery worked awesome!!
the battery is pulling out 1.5 to 2 days with wifi on half of the time

Battery life bad even on Anker 1900!!! Help!!

Hi all,
I brought my HTC Sensation z710e about 14 months ago, and I'm a pretty heavy user, so battery life took a hit.
After about 8-9 months i got 4-5 hours screen on time on the stock battery. About 7 hrs heavy usage. I tried formatting the phone, and kept an eye on battery abusive wake locks, but to no avail.
To rectify that I've tried various roms (Elegencia 4, VipersS 1.6, Albinomans CM 10.1) among a few and also tried undervolting the phone. Nothing.
Then about a month ago, I brought a 1900mAh Anker battery which according to a lot of XDA threads is the problem solver for all battery issues.
I've been using that battery with Albinomans rom, and I have tried wiping battery stats to ensure the battery starts from a clean slate, but still I get barely 7 hrs, far from the promised 2days.
That leads me to conclude that something is wrong with my setup. And having tried many roms and kernels, formatting my phone and doing most other stuff suggested on the XDA threads, I cant work out whats wrong.
If it is a hardware issue, is there any way of finding out what it is, and what would be the way to rectify.
Any help would be higly appreciated
(although I've been and rooting and playing around with my phone for abt 3months now, this is my first thread on XDA. It may be a little unorganised in the way its written. If i've left any info out plz let me know. Thanx)
HTC Sensation z710e
Albinomans CM 10.1 10th May build
CPU 1500Mhz 384Mhz
Firnware 3.33
hello, if you use many applications that constantly require the 3G part of your mobile , it is quite normal ...
With my stock battery, i'm about 20hours and more but if i play games for a long time it's normal that battery drops.
I even think that you can be happy that your battery takes 7 hours using it a lot.
Try these CPU settings :
Governor Lazy or Badass
Min : 384Mhz or 432Mhz
Max : uses frequencies between 932 to 1188Mh
When u change ROM try to wipe battery stats before first start
Before u change the Kernel, make a Full Kernel Reset. Flash new Kernel
blogodoblogodo said:
hello, if you use many applications that constantly require the 3G part of your mobile , it is quite normal ...
With my stock battery, i'm about 20hours and more but if i play games for a long time it's normal that battery drops.
I even think that you can be happy that your battery takes 7 hours using it a lot.
Click to expand...
Click to collapse
This part all rings true. You cannot measure the battery life by how long you go between charges. That's almost irrelevant information because if ti's set up properly the phone will use very minimal battery when the screen is off.
The proper way to measure the battery life is by how much screen on time you get plus phone talk time between charges. With an Anker on Albino's CM10.1 ROM that should be 3 to 5 hours depending on a few other things. If that 3 to 5 hours happens all at once, then you'll need to recharge in 3 to 5 hours. If you use it sparingly over 2, 3, or ever 4 days before you've use it for a total of 3 to 5 hours, then it'll last that long between charges.
The 2 things that use the battery are the screen's backlight and the cell radio. Those two things are the battery users. Bluetooth and Wifi are too. But theoretically you're not using bluetooth or wifi unless you are talking on a call or having the screen on. So you can still measure by the scren on plus talk time. And if you use bluetooth and wifi a lot your total use will be closer to 3 hours than 5 hours.
When u change ROM try to wipe battery stats before first start
Click to expand...
Click to collapse
This part is not true. It has no effect on anything. And when you install any ROM the battery stats are going to get wiped anyway because you are replacing the entire contents of the system directory.
No amount of wiping battery stats, calibrating batteries, or any of that mumbo jumbo is going to help. It's all snake oil.
Also keep in mind that you do need to give a new ROM 3 to 5 full charge and discharge cycles before you really see what the battery life is like. If you're jumping from ROM to ROM every day to test battery life you'll never get an honest look at what batter life is like on any of them.
Kernel
Thanx very much,
Any suggestions on what JB kernel to use??
murtazasamiwala said:
Thanx very much,
Any suggestions on what JB kernel to use??
Click to expand...
Click to collapse
On albino's ROM? You only have 2 options. The one that comes with it, which is perfectly fine. Or SultanKernel, which isn't terribly different. But the install process of sultan gives you more configuration options.
Sent from my GT-P5110 using xda app-developers app

[Q] Heavy battery drain issue - help troubleshoot

Of late, I have been having heavy drain of battery on my Atrix 2. I am running JB 4.1.2 (672.300.404.ME865.Retail.en.05). Trying to troubleshoot it (including recalibration) since the last few days without luck.
The symptoms...
- Sudden shut down - Have had 50%+ charge levels. Goes down to 5% and shuts down within minutes. (You can see the random drops in the charge levels in the pic)
- Completely drained out battery charges from above 40% when plugged in & charges to 100% in no time. (that 67% charge in the attachment is within 5 mimutes of power plug in)
Does the battery need a replacement?
ravi-atrix2 said:
Of late, I have been having heavy drain of battery on my Atrix 2. I am running JB 4.1.2 (672.300.404.ME865.Retail.en.05). Trying to troubleshoot it (including recalibration) since the last few days without luck.
The symptoms...
- Sudden shut down - Have had 50%+ charge levels. Goes down to 5% and shuts down within minutes. (You can see the random drops in the charge levels in the pic)
- Completely drained out battery charges from above 40% when plugged in & charges to 100% in no time. (that 67% charge in the attachment is within 5 mimutes of power plug in)
Does the battery need a replacement?
Click to expand...
Click to collapse
Try changing battery... even i had same problem with Custom rom. Battery used to last only for 10 to 12 hours but now its more than 17 hours on JB 4.1.2 leak,,,,...Use stock rom. and remove any unncessesary apps and installl ROM again if u want :good:
How old is your Atrix 2? If over a year then battery surely begins to give lesser performance. Disable any other task killer / memory manager & just let OS do its thing. See if installing Media Scan disable from play helps & do not keep using random chargers, make use of original charger as received with phone. Finally see Better Battery Stats. It is said battery stats should never be wiped but see if it helps you and finally search for Apex's better battery life guide for many handy tips.
I disabled notifications, sync, froze higher wakelock apps & my battery life improved a bit but then it is no fun existing in a bare bones environment.
RAD7 said:
How old is your Atrix 2? If over a year then battery surely begins to give lesser performance. Disable any other task killer / memory manager & just let OS do its thing. See if installing Media Scan disable from play helps & do not keep using random chargers, make use of original charger as received with phone. Finally see Better Battery Stats. It is said battery stats should never be wiped but see if it helps you and finally search for Apex's better battery life guide for many handy tips.
I disabled notifications, sync, froze higher wakelock apps & my battery life improved a bit but then it is no fun existing in a bare bones environment.
Click to expand...
Click to collapse
The phone is just about a year and half old. The drop in battery performance is just too drastic, sometimes it doesn't even last an hour after the charge. Will try to go back to original ROM and see if it improves else will probably have to go for a new battery pack.
ravi-atrix2 said:
The phone is just about a year and half old. The drop in battery performance is just too drastic, sometimes it doesn't even last an hour after the charge. Will try to go back to original ROM and see if it improves else will probably have to go for a new battery pack.
Click to expand...
Click to collapse
Look like a battery problem to me its not the ROM but anyways turn off location services and wifi they are a big battery drainer
Use 2G when u dont need high speed.......
Try this app called Greenify https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
(it helps to reduce wakelocks and improves your battery life)
:laugh: Let me know if it helped (btw chck your battery and see if its defected they are amny ways to chck it read up the forums )
i have the same problem whit any rom of 4.2. when the custom rom shows 5% i change to stock ics rom an that show me 45%
aspc2 said:
i have the same problem whit any rom of 4.2. when the custom rom shows 5% i change to stock ics rom an that show me 45%
Click to expand...
Click to collapse
Think mine is clearly a battery issue. Replaced the battery with a new one yesterday and now the phone lasts 6 hrs at least on a single charge.
CM 10.1.3
I couldn't write to developer's forum so I'm asking here.
I've recently firmwared my AT&T A2 CM 10.1.3 and battery drains really fast! The previous build was CM 10.1 (25th of June). I wiped cache and dalvik cache and firmwared CM 10.1.3. At least 3 people report that thie batteries on this ROM drain slow.
What did I do wrong???
danger86 said:
I couldn't write to developer's forum so I'm asking here.
I've recently firmwared my AT&T A2 CM 10.1.3 and battery drains really fast! The previous build was CM 10.1 (25th of June). I wiped cache and dalvik cache and firmwared CM 10.1.3. At least 3 people report that thie batteries on this ROM drain slow.
What did I do wrong???
Click to expand...
Click to collapse
Battery life varies so much from user to user that it is impossible to answer your question without A LOT more information.
Go here:
http://forum.xda-developers.com/showthread.php?t=1179809
Download the app and follow the directions in the op. That and reading through that thread itself should tell you everything you need to know about what is using up your battery.
That being said, everyone has different habits and expectations when it comes to their battery. What one person says is good battery life, another will likely say is bad. So just keep in mind that there is not a right or wrong, just what is right or wrong for you.
If I had a dollar for every time I said that, I'd be making money in a very weird way.
Thank you fro your answer. When I used previous version of CM the battery lasted 3 days with minimal using and turning the flight mode at night on.
As long as I installed newer version with JBX kernel the battery lasts 20 hrs max.
Power Tutor says that the most hungry apps are Android System and Kernel

Nexus S Battery Issues

Hi all. I purchased a nexus S recently, second hand. It had a 4.1.1 stock JB installed. The battery life was horrible, i hardly managed 5 hours with less than 2 hours of screen time. I changed the rom to CM 10.1.3 stable, although i do know that CM roms are battery hungry yet battery remained about the same as before. Thinking maybe the battery was faulty, i got a new one. It seems slightly better but still i am managing only 2 hours screen time with Cm10.1.3 and a matrix kernel. Plus, the charging is SUPER SLOW. Takes more than 4 hours to reach 100% charge. Is that normal? Kindly any suggestions would be appreciated.
maybe is battery problem ..change it
Battery problem is common issues in nexus S..I am hardly get 2 hr + screen on time..
Sent from my Nexus S using xda app-developers app
alinawazkhan said:
Hi all. I purchased a nexus S recently, second hand. It had a 4.1.1 stock JB installed. The battery life was horrible, i hardly managed 5 hours with less than 2 hours of screen time. I changed the rom to CM 10.1.3 stable, although i do know that CM roms are battery hungry yet battery remained about the same as before. Thinking maybe the battery was faulty, i got a new one. It seems slightly better but still i am managing only 2 hours screen time with Cm10.1.3 and a matrix kernel. Plus, the charging is SUPER SLOW. Takes more than 4 hours to reach 100% charge. Is that normal? Kindly any suggestions would be appreciated.
Click to expand...
Click to collapse
try this...
alinawazkhan said:
Hi all. I purchased a nexus S recently, second hand. It had a 4.1.1 stock JB installed. The battery life was horrible, i hardly managed 5 hours with less than 2 hours of screen time. I changed the rom to CM 10.1.3 stable, although i do know that CM roms are battery hungry yet battery remained about the same as before. Thinking maybe the battery was faulty, i got a new one. It seems slightly better but still i am managing only 2 hours screen time with Cm10.1.3 and a matrix kernel. Plus, the charging is SUPER SLOW. Takes more than 4 hours to reach 100% charge. Is that normal? Kindly any suggestions would be appreciated.
Click to expand...
Click to collapse
Hi There
you can try to clean the -ve,+ve and the BSI terminals of the battery get them back to golden color and charge it to 100% then Calibre it.

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