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[Q] Custom ROM´s and battery drain

Hello fellow Galaxy owners,
I have been installing various custom ROM´s for about 2 months now, so I guess you could still call me a beginner. Recently it has been difficult to keep up with all the latest and greatest advances in kernels and ROM´s. Being a father I don´t have as much time as I used to, to read through the mountain of information on the forums.
It is for this reason that I ask for some simple advice. I have found that Hamster, Instanity and DocRom ROM´s are all very fine pieces of work and they are blisteringly fast. The GPS is fast, the themes are epic but alas the battery life is pretty bad (well for me at least).
I must admit thought that I am obsessed with my phone and I use it constantly to read the news, check emails and stream internet radio while I am driving in my car on a daily basis.
I currently have DocRom slim V3 installed after having done a complete fresh installation. But despite being fast it seems to be very hungry on the power consumption.
Do I need to cycle it through some complete battery discharge cycles and fully charge it, then reset the battery stats in CWM recovery? Does it need some days to settle? Or should I flash different Kernels and see which one gives me the best life? If the latter then which kernel do you recommend for JPU?
Thanks in advance!

Same here
With 3g my I9000 die after 10 hours!
With 2g die after 14 hours!
With data network mode deactivated die after 30 hours!
I don't know if changing baseband or kernel will help or not!
BR

I'm having pretty good battery life without any network and LiveWallpapers turned off... just simple black screen it stayed ON for 4 days with some WiFi surfing, PDF reading and music listening player/online radio. So I guess network is draining the most.

DocRom V6.2
I just installed Doc´s ROM v6.2, and it has greatly increased my battery life.

drewmayte said:
I just installed Doc´s ROM v6.2, and it has greatly increased my battery life.
Click to expand...
Click to collapse
Great to hear this!
I don't know if this is your case, I used to have the beautiful widgets weather widget on my home screen, and after soem time I realized this app was constantly refreshing and consuming LOTS of battery.
If you have it, removing it will increase your battery life too.

I have same problem,i do have the beautiful weather widget installed and think it looks nice on home screen,maybe this is the batt killer??
What other programs does the same? I like the watch and weather widget to be shown..?

Battery drain on MIUI 5.2

Hi guys, I've flashed MIUI 5.2 yesterday and I didn't have time to play around with it. But I've noticed today that even when left idle, the battery drops from 100 to 84 in about 2 hours or so. All the other services are off except 3g. Plus when I fiddle around with it, the battery drop is even more noticeable. I went from darky 10.1-Miui5.2, just fyi with the default kernels on the miui page. Any suggestions on how to fix this?
Sent from my GT-I9000 using XDA App

Miui is to heavy
If u want longer life then Miui aint for u.
Miui is by far the best rom for galaxy s ever if u like to be able to change every aspect of ur phone but the more a rom can do the more juice it takes.
If u want more life and less tweakeblity then u need to use pony roms like darky or ultimate aso.
Edit : Miui bat life is slowly increased by each release (5.2 is way better then 4.1)

Yeah I've noticed that. I switched back to Darky,happy to see 16hours of battery life again. But I wouldn't hesitate to go back to miui in the future though, provided the battery life increases. Or at least until juicedefender has some effect on it
Sent from my GT-I9000 using XDA App

flashing from stock to MIUI is a painful process and it reflects on the phone too !!
after such a vigorous beating from ODIN and Recovery flashing, the phones battery needs time to settle,
Do the battery calibration a few times, generally the battery will settle after a week, Until then its hard to judge battery life, albeit it is definitely less than a stock ROM, But some MIUI users report 1 day, some report short of 3 days..
so dont give up just yet

azzledazzle said:
flashing from stock to MIUI is a painful process and it reflects on the phone too !!
after such a vigorous beating from ODIN and Recovery flashing, the phones battery needs time to settle,
Do the battery calibration a few times, generally the battery will settle after a week, Until then its hard to judge battery life, albeit it is definitely less than a stock ROM, But some MIUI users report 1 day, some report short of 3 days..
so dont give up just yet
Click to expand...
Click to collapse
wow 3 days? imma try it again then, right after my battery finishes charging. what kernel do you think is the most ideal one to use? i live in the uk
Edit: I saw a guy getting 14% loss after 12 hours using JXJV6. Isn't JXJV6 a modem for the middle east? Is it possible for me to use it here in the uk?

farisiylia said:
wow 3 days? imma try it again then, right after my battery finishes charging. what kernel do you think is the most ideal one to use? i live in the uk
Edit: I saw a guy getting 14% loss after 12 hours using JXJV6. Isn't JXJV6 a modem for the middle east? Is it possible for me to use it here in the uk?
Click to expand...
Click to collapse
im not sure about that modem, but i dont see why it wont work, i use at the moment ZSJV5 - i am in the uk too, that modem works fine for me .
As for the kernel, the latest Glitch V10 is good enough, you could also maybe undervolt and underclock just a little, this would increase battery life too.
but 2 -3 full cycle charges really makes a huge difference.

Awesome, I'll try that soon. Mind sharing the link for ZSJV5? And the app for undervolt and underclocking?
Edit: It seems that I have the insufficient storage space bug, I've read the faqs,
1.3 Apps not installing - Not enough memory message pop up (Known bug for CM7/MIUI)
1. (Using root explorer or any equivalent app) Delete folder /data/data
2. Copy "folder" /datadata to /data/
3. Change name of folder /data/datadata to /data/data/
But it still doesnt work. If I reboot, I have to go through the setup wizard again, and rootexplorer will be uninstalled. Any idea how to fix this as well?

Best Battery Life - 3thparty battery?

Currently using the lastest CM7 kang + Etana kernel. While i am pleased with the performance i'm not pleased with the batterylife.
I've been updating Kang and using custum kernels but my batterylife seems to keep descreasing every time i change something. Probably because of the multiple roms version/kernel tweaks which do not always like eachother.
I'd like to start over but before i do i'd like to know which rom/kernel combo is considered to be the best for batterylife + smoothness! Any recommandations?
Second question - i've read several threads about 3thparty batteries but none seem to be conclusive - is there a battery which beats the stock battery?

Did you calibrate battery after flashing ROM?
Sent from my LG-P990 using XDA

I use Owain's CM9 with Harsh Kernel and the battery life is amazing!

I got the best battery performance if i am using 313 baseband with 725 10d RIL. I also use WIUI 2.3.30 as a Custom ROM with ETANA - Kernel with LOC - DS -OTF flag ;-)

it happened to me when i first install cm9, even use match ril&bb , the battery die quickly even i do nothing . but after i install harsh' kernel,battery be normal .
so,i suggests you use another kernel for cm7, from top topic in android development forum. hope this can help
Sent from my LG-P990 using XDA

I am finding my X2 only lasts about 4-6 hours. i take a couple of fotos/video, use wifi etc and its dead so quick. i read about reseting battery and filling the cells with the OFF charge on Charge method. so far i have charged full while on. restart charge while off. its on what looks like about 95% and has been on 1 extra hour still not full. is it a bug?
ok so next i disabled alot of stuff uninstalled car home etc and run on 2g etc,
is there anything else i need to know for battery life.
i read a tutorial on this site had a huge list of things. ive done those so far.
just cant get the battery to charge full while off charging.

ok did a few of the battery mods used "juice defender" uninstalled car home etc.
on standby with "wireless left on" and sync left on. 10 hours 40 minutes..
is that bad. I THINK THATS REALLY BAD. right?

battery saver

hi, currently i am on darky rom 10.4.2 xwjw1 rom... i have tried different modems on it.. i am happy with the rom but only problem is battery.. i am not happy with battery life.. will going to semaphore kernel will help battery life??? or give any other kernel or rom that gives me more battery life like upto 2 days... if performance degrades little than its ok with me.. is there any hack or scripts which will improve battery life??? battery juiced a lot when using 3G.. please help me guys... any good battery saving ICS rom will also do..

With Darkys i had the "best" battery with XXJVQ, Semaphore and turned off 3g. Just had a widget to toggle 3g quickly. That just saved 20% a day for me.
And i know thats not exactly that what you want but moving to ICS increased my battery life pretty much

vrs8 said:
With Darkys i had the "best" battery with XXJVQ, Semaphore and turned off 3g. Just had a widget to toggle 3g quickly. That just saved 20% a day for me.
And i know thats not exactly that what you want but moving to ICS increased my battery life pretty much
Click to expand...
Click to collapse
thanks for replying.. but i use 3g internet and i do switched it off when not required.. and i am ready to move to ics rom... which ics rom are u using??? what combination gives best battery life??? also give links if possible...

Well, first of all, there applications that are supposted to increase battery life. For a few examples, you could try Juice Defender(my personal favourite) or Watchdog Task Manager. I personally did try some GB Darkys' rom, and I wouldn't recommend it. The battery life was terrible. I'm now running WeUI, an ICS rom. I also tried CM9, and it had a pretty good battery life, but it's not really what I would recommend you to use as a daily usage rom.
You might also want to check your screen brightness settings, I personally have mine set at "automatic".
Also I'm not that sure if semaphore has a good battery life. I heard that Icy Glitch has better, but I am still running semaphore 1.0.0.
Let me know if those apps make any difference!

Back in the day when i was a darky user, i also tried semaphore and hat good results with it, 2days or more were common. I used BUJV3 modem mostly. But generally I had 2g running. The battery life always drops a lot when you constantly turn 3g on. Btw moving to ics reduced my battery life, I charge every night (sometimes earlyer).

i have juice defender... also i turn off the 3g when not required... and i have set the brightness to minimum.. but still i want to conserve more battery... can any one give me the kernel which uses lowest battery without much performance lag??? any ROM??? any good ICS ROM with good battery???

you can undervolt..
http://damiangto.emc2production.org/viewtopic.php?f=11&t=314

I was using an app called SuperPower XDA-BETA v0.80, that can be found on market.
As for me it's the best app for customising power usage, a bit tricky, and rot needed for most features, but I was finally able to prolong my battery life to 2,5 days.

i don't think so apps can save much battery as it will switch of the radio services which i am already making off when not required.. i am talking about battery Hacks or Kernel or ROM which will give extra battery power???

]Dude you want to use 3G too and still want battery life of upto 2 days !!! quite a dream...
anyways few things you can try on.. these are not hacks just tips
- remove any widgets on your homescreen
- turn off autosync
- don't use any constantly updating apps like weather, clock widget etc
- turn off auto rotate (read in some thread this as a tip too)
- don't use automatic task managers
- don't use any battery saver, turn off the data manually when not using everytime
- don't use live wallpaper and try to use some dark background image preferably black
- use some black and white theme
- remove/ freeze as many system applications as possible which don't affect your normal functioning and the apps that you don't use

GALAXY Note: Battery life is so less. ?? (Please Help)

Hi everyone. My battery life is really sucks. I bought my item two days ago. It is new. And I upgrade my version and baseband , kernel and build version like below :
N70000XXLB2
2.6.35.7-N7000XXLC1-CL1003701 [email protected]#2
GINGERBREAD.XXLC1
I think that this version xxlc1 is last version but I wonder how is my kernel version ?
Battery life is very bad.
Moreover Charging lasts so long. 3 -4 hours sometimes.
PLEASE Help me! please

depends in the usage, rom, kernel, settings etc you are using.

lrcquest said:
depends in the usage, rom, kernel, settings etc you are using.
Click to expand...
Click to collapse
when i see some kind of usage experiences, I am so jealous. How they use this much ? HOW. I only use wifi and radio.

Hi,
What is your battery life on the Note? Does it last a day even two?. If it does, then that is pretty much normal. You whine on a phone that you just use for only 2 days? Stop whining and complaining. You havent have had utilize the full charge and recharge cycles of your battery and now your whining already.. Man, give your Note a week or two and your battery life will be okay.
Hmm.. Is this the first time you use an android device? What phone where you using.before? If you we're using a non android device e.g. Symbian or etc. Then my reaction to your complains (of your Note) is justifiable. Symbian for the fact has always been known to be very good or decent in terms of battery life.
Now android OS, is known throughout (irregardless what smartphone/tablet you have) to have the AOS bug. It is a bug where there's some sort of a battery leak and hencefort most android users tend to root their phones so that they can stop background stock applications from running in the background. The births of custom ROMS and Kernels have given some tremendous wonders also especially on phone's UI and more so on battery management.
Again. Stop complaining and go down root your phone and install battery saving apps or custom ROMs. It's all over the thread anyway.
The sooner you customise your phone to your heart's content, the better you can appreciate it's full potentials.
Cheers!!!
Sent from my GT-N7000 using xda premium

letters_to_cleo said:
Hi,
What is your battery life on the Note? Does it last a day even two?. If it does, then that is pretty much normal. You whine on a phone that you just use for only 2 days? Stop whining and complaining. You havent have had utilize the full charge and recharge cycles of your battery and now your whining already.. Man, give your Note a week or two and your battery life will be okay.
Hmm.. Is this the first time you use an android device? What phone where you using.before? If you we're using a non android device e.g. Symbian or etc. Then my reaction to your complains (of your Note) is justifiable. Symbian for the fact has always been known to be very good or decent in terms of battery life.
Now android OS, is known throughout (irregardless what smartphone/tablet you have) to have the AOS bug. It is a bug where there's some sort of a battery leak and hencefort most android users tend to root their phones so that they can stop background stock applications from running in the background. The births of custom ROMS and Kernels have given some tremendous wonders also especially on phone's UI and more so on battery management.
Again. Stop complaining and go down root your phone and install battery saving apps or custom ROMs. It's all over the thread anyway.
The sooner you customise your phone to your heart's content, the better you can appreciate it's full potentials.
Cheers!!!
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
My battery life is 5 - 6 hours. I am accept 12 hours. I wish it last 12 hours. Before I used Iphone4, it is not so long for battery life , however it is acceptable. I did not understand how notes's battery life so short.
Moreover I can not use custom rom. because they r not good as well as stock rom. ALl of them have some problems. But I can change my kernel.

to get battery life you either
a) dont use your phone or
b) get information to use your phone more wisely
So..
a) download a battery monitor.. there are a bunch recommended..
b) read the other 200 threads on battery life and dont start another one. Each and every question has been asked and answered ad nauseum
while you are figuring out root, and task killers, here are a few easy tips to help..particularly when you are putting the phone down for a while
apps>task manager>active apps> CLOSE ALL
apps>task manager> RAM> CLEAR MEMORY
settings>applications>running services> review and shut down apps/games that may be running in background (and that are not critical)
Again.... RESEARCH the forum.. the answers are already here. and you should read and post in existing threads
eediz said:
My battery life is 5 - 6 hours. I am accept 12 hours. I wish it last 12 hours. Before I used Iphone4, it is not so long for battery life , however it is acceptable. I did not understand how notes's battery life so short.
Moreover I can not use custom rom. because they r not good as well as stock rom. ALl of them have some problems. But I can change my kernel.
Click to expand...
Click to collapse

You could also have a defective battery.
On my iPhone 4, my first of 4 that were faulty, battery life depleted in less than 12 hours of STANDBY only on wifi, nothing syncing. Only being on. Battery life was so bad.
It's not uncommon to get a dud battery sometimes.
Try doing a complete restore, stock EVERYTHING, don't push anything (except email, cal, and contacts, you know, the basics) and see if you're having the same results. If on a fresh, stock, install you're having the same issues, then you've got a defective unit and/or battery.
Hope I've helped.

eediz said:
My battery life is 5 - 6 hours. I am accept 12 hours. I wish it last 12 hours. Before I used Iphone4, it is not so long for battery life , however it is acceptable. I did not understand how notes's battery life so short.
Moreover I can not use custom rom. because they r not good as well as stock rom. ALl of them have some problems. But I can change my kernel.
Click to expand...
Click to collapse
There are quite decent custom roms for the Note. I have tried many gingerbread versions (Chracks, rocketrom, cassies etc) currently on chrack's v18 small (LC1) with speedmod latest kernel.
I have not faced performance issues on this. But each user is different so u r the boss.
Best give the custom kernels a try for now. If u find the battery life better then ur problem is solved. The advantage of custom rom is that so much useless bloatware in the stock is removed for better space mgt & performance.
have provided some tips in the following link, feel free to go thru.
http://forum.xda-developers.com/showthread.php?t=1600691

eediz said:
Moreover I can not use custom rom. because they r not good as well as stock rom. ALl of them have some problems. But I can change my kernel.
Click to expand...
Click to collapse
dude, you are ridiculing some of the well known devs who have made custom ROMS for all to appreciate and use. IF there was and is a problem on a particular custom ROM, it is or might be cause indirectly on the user itself, on what apps he/she insatalled on his phone. Surely you cannot generalize all custom ROMS have problems do you? if all have problems, the devs have some new revisions to fix those bugs and in no time at all your Note would be in tip-top shape again.
If as what you say, Custom Roms have problems.... then why the heck most people I know have used them and have big wide grin on their face to show off what they have and even posting a copy of their latest ROM pictures here... not to mentioned in YouTube as well.

ok. Which rom is the best stable than ? Which I should use ?

go read the threads on battery performance.. loading a new ROM will not fix problems if you do not know what you are doing.
eediz said:
ok. Which rom is the best stable than ? Which I should use ?
Click to expand...
Click to collapse

first quote :laugh:
Hi there.
I had the same issues but only after the update done on ICS.
I have over 140 different application and nearly all of them have been purchased.
What happens is that, when you are not using your phone it should go to "deep sleep". This allows your phone not to run any application and merely use any battery. Your problem probably come from somewhere in your setting an automatic update. That drains a lot....
I downloaded different application hoping that it would work out such as Juice Defender, watch dog and many others. After lots of research, I found out that it is not good for your phone to have an auto killer app or even an application that modifies the functions of other applications.
So I downloaded battery spy and cpu spy on "google play" and followed the instructions.
I needed a deeper analytic application "Kernel" and this was THE application that allowed my phone to go from 6-8 hour to 28 hours.
"Better battery stats", it's not free but was really worth the spending.
Google play chronological download
1) watch dog
2) battery spy
3) cpu spy
4) better battery stats
Good luck

I keep switching my cellphone off while not using, and same goes for wifi. Using it as a secondary phone as well. It lasts only 4-6 hours.. :S I keep closing background apps, and kill app once im done with it..

Also be aware that in areas with bad network strenght, the GNote really suffers.
I normally have no complains (0,6-1,5% battery usage per hour) but where I am now, the GNote really works hard to keep the connection and my consumption easily goes to 4-6% in deep sleep and 15-20% when using it...

eediz said:
ok. Which rom is the best stable than ? Which I should use ?
Click to expand...
Click to collapse
If you like stock samsung looks try CleaNote 3.10 , very good n battery life , I get around one day backup with heavy usage and 2 days plus with moderate usage .
If like pure google , then try cm9 , very stable and quite good on battery back up .
And if you dont use 3g or 3.5 g or any such networks then select GSM only or use 2g networks only ( Settings -> under wireless and connectivity , More -> Mobile Networks )
Also keep your display brightness to minimum , control the brightness manually instead of auto brightness .
Turn off auto sync ( big advantage over battery ) .
Scan for running apps and cached apps and force stop the ones which you dont use .
Use titanium back up and freeze some of the bloatwares ( stock samsung apps ) or uninstall them , like readers hub , mydiary , they are **** .
And dont use task killers , they drain your battery . they may clear rom but some apps restart automatically and that needs more juice than running those apps . Hope all these suggestions help . From my experience with this phone

Tonio78370 said:
Also be aware that in areas with bad network strenght, the GNote really suffers.
I normally have no complains (0,6-1,5% battery usage per hour) but where I am now, the GNote really works hard to keep the connection and my consumption easily goes to 4-6% in deep sleep and 15-20% when using it...
Click to expand...
Click to collapse
I didnt know that, My signal is usually 10-40%. I have bad signal strenght at home.
my battery decreases 1% in around 5 minutes of use or something. Today it lasted me 10% on standby for around 8-10hours.

ryandigweed said:
I didnt know that, My signal is usually 10-40%. I have bad signal strenght at home.
my battery decreases 1% in around 5 minutes of use or something. Today it lasted me 10% on standby for around 8-10hours.
Click to expand...
Click to collapse
You need to purchase and install "better battery stats" and also install cpu spy (I'm assuming you're rooted) and use them to monitor your phone and battery in order to solve your issue. Google both and you'll find several good threads on xda about using and interpreting these apps, but if you get stuck post some screen shots from both and someone here can almost certainly help. There are a number of potential sources of such problems, generally rogue apps, and also a bug or two, but it is impossible to offer help without the details these apps would provide.

hchxoom said:
You need to purchase and install "better battery stats" and also install cpu spy (I'm assuming you're rooted) and use them to monitor your phone and battery in order to solve your issue. Google both and you'll find several good threads on xda about using and interpreting these apps, but if you get stuck post some screen shots from both and someone here can almost certainly help. There are a number of potential sources of such problems, generally rogue apps, and also a bug or two, but it is impossible to offer help without the details these apps would provide.
Click to expand...
Click to collapse
Thanks for that, i will install it. By the way i got the "battery widget" installed, which has gained popularity on the market.
Also im only using 9% of brightness of my phone.

I'm using a rooted stock 4.0.3 and I'm finding battery life its pretty good - better than unrooted GB was in fact. Simply freezing bloatware via titanium and limiting sync on some (not all) apps and services makes a gigantic difference. Design your phone around your own needs and you'll end up with an amazing device that you'll fall in love with all over again.
Sent from my gnote as always