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Dear Users
I have the XEWK7 SGS2 Rooted Stock Rom, Ive removed most of the nonsense software, and got the basics only. I have also removed TW Launcher and set up Go Launcher. Simply because it is a lot faster and better. Ive done something to slow it down, and decrease battery life, and thus before I restore it to the SGS2 rm, I decided to try other roms, like the lightening rom, can anyone suggest if this will be conducive or adverse to my settings now?
Thanks.
Flashing a new ROM will be the same as factory resetting it (but obviously with a different ROM), so your current setup will be gone and is therefore irrelevant, or am I not understanding your question?
I am reading it the same .Files gone .
Or is the question >> Are other roms better than your own settings >> Answer is who knows .
Backup current rom and you can always flash it back .
jje
Incidentally, I can't comment on any of the ROMs cos I'm still on stock - all I've done is rooted it. But I can say for sure that I wouldn't bother trying to make this thing faster as it's ridiculously fast already!
If you did something to slow it down then maybe try freezing apps 1-by-1 until you find out what the problem is.
thye main problem is battery drain. Ive removed bloatware, no gps, no 3g, no wifi, bluetoot, brightness at 10% and running mail sync with news and weather. my battery isfinished in 9 hrs without much calling. I need the dam thing to last atleast 15-18 hrs. Im also using 1800mah batteries.
MasterfullDON said:
thye main problem is battery drain. Ive removed bloatware, no gps, no 3g, no wifi, bluetoot, brightness at 10% and running mail sync with news and weather. my battery isfinished in 9 hrs without much calling. I need the dam thing to last atleast 15-18 hrs. Im also using 1800mah batteries.
Click to expand...
Click to collapse
Read the VR Rom post .
http://forum.xda-developers.com/showthread.php?t=1081368
jje
Ok, now my phone is giving me good battery life. 6 hrs of moderate usage, only 25% gone....what is the longest anyone got out of a battery with constand Email sync?
Hi guys sorry for this thread new here so please go easy on me. Had a galaxy s2 for a few weeks now and i have to say best phone ever. Did the normal rooting and flashing roms and i have noticed recently that my battery has been going down quite a lot after a few hours. I tried roms like Villainrom, Cognition, Batista and etc which i find them very good but on my battery stats it says that i have high display usage and the percentage is like 56 - 85 and sometimes goes and stays to 91. i have since then when back to 2.3.3 stock firmware rooted it as well and i only have display percentage of only 25% which i think is normal and my battery lasts longer. I have spoken to Samsung regarding this situation and they are sending me a new battery but im just wondering why i cant flash a custom rom without having to worry about the high display % and what can i do to fix it? do i have to give it a few days for the battery to settle on the rom or shall i just stay with the stock rom for now till i get my new battery and then try to flash? sorry for the long essay i just need to find out if any one else had the same problem as i really like to use a custom rom that my normal one.
THanks
I too find it very hard on the battery with all the custom roms that I have tried out. I tried, Villain, Cogniton, LeoMar, Batista, etc..etc..etc. I have in fact tried out all the ROMs out here. Tried even different combinations of Kernel, but all only lead to the frustration when it comes to battery life. I finally tried MIUI ROM and I can say that it is giving me very good battery life compared to other ROMs.
It is interesting to note from you that the STOCK ROM has given you better battery life. Could you please tell me how long did your battery last in Stock ROM and what are the Apps that were running in it?
Install Better Battery Stats, I don't think anything wrong with the battery.
See under Wakelocks what apps/processes are going in background and causing the drain. Then take necessary steps with TB Pro.
Sent from GT-I9100
to xdadeveloporian: thanks for your reply bk and sorry to hear that you had the same issues. like i said above i am very new to all this so apologies if i am replying with noobish comments. with wifi on and the normal widgets i had a battery life over a day. only charged it once and it still going. is that rom that you using now good?
and to ithappy sorry what do you mean by your reply i do not understand sorry. and do you guys think with a new battery it will fix my problems and i will be able to flash roms or do i have a faulty phone?
% is not important, what really matters is total time on for the display. Are you sure it isn't that the stock ROM burns more power in other areas, so the display is less? Or maybe the brightness is different? I'm not even sure how the display proportion of battery drain is apportioned - is there really a current sense integrator?
now that i have the stock rom with firmware 2.3.3 display is 30% followed by android os 15 - 19% which i think is normal into regards were i was on customs roms and the os was 15% and display 50% and over. brightness is basically at the lowest i can put it i am using touchwiz launcher and i only have two pages with widgets and nothing else. just a bit confusing thats all. i mean with custom roms the battery should be alot better not the other way round if you get me.
apologies if im not making any sense here. thanks again for all your replies it does help
tjoannou2001 said:
i mean with custom roms the battery should be alot better not the other way round if you get me.
apologies if im not making any sense here. thanks again for all your replies it does help
Click to expand...
Click to collapse
I don't believe that stuff, why battery life would be better in a Custom ROM, because they added/modified some stuffs, nah. You can make a Stock ROM custom with some little modifications if you are rooted and have great apps like Root Explorer, Titanium Backup etc. I, for me, will never ever use a Custom ROM. But that's just me, don't take it any personally.
And about battery, don't see that how long are you getting with it, like- 1 day, 2 days, they don't make any sense, just keep an eye on the 'Screen On' time, if that is around or above 5 hours then you are very fine. And also keep checking that your Awake and Screen On bar is synchronized or not, if it is not then you must have something going on background, like- Latitude, Email exchange etc. which you can see under Better Battery Stats. And also, when not needed turn off, 3G, Packet Data, WiFi, Auto Sync, Background Sync and check how many apps are on Auto Sync, if not needed then modify it to Manual Sync.
Regards.
ithehappy said:
I don't believe that stuff, why battery life would be better in a Custom ROM, because they added/modified some stuffs, nah.
Click to expand...
Click to collapse
Maybe they fixed some bugs - specifically a custom kernel might have improvements or bug fixes (since there is lots of work going on here from many companies making contributions). This takes time to filter through to the official ROMs.
Maybe they removed some of the stock apps which contribute (maybe only slightly) to power drain.
Maybe the small differences in the ROM mean that existing bugs are less likely to have an impact, so even not fixing the bug it seems to have gone away.
Custom ROMs are as likely to make things worse - but if many people are affected then it is likely that someone will track down the reason.
Look all i know is that as soon as i started flashing custom roms on my phone my battery life has been going down like hell. Checking battery stats the most thing that is taking up battery life is the display being as high as 80 even 90 percent. I am not a expert on android having had an iphone all my life so when people say underclocking and other stuff its like new things to me so i do apologise for being such a noob. i do love my galaxy and i think its the best phone out there at the moment. all i need to know is if there is something that i can do to bring the display down and not to have it drain so much out of the battery..
Thanks again for everyone for replying
very niceeeeeeeeeeeeeeeeee
huh? has anyone else experience high display usage on their phones when checking battery stats?
is that from the android market i can get that app?
tjoannou2001 said:
is that from the android market i can get that app?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1179809
I have been Using my SGS2 on cm7 since the day i bought it some days back.. The thing is i dont get good battery life. Battery Monitor Widget Pro shows -10mA to -90mA and sometimes upto -150mA drain in stand by. Last night i lost 13% in 8 hours. I recharged it to 100% the battery drain was about -2mA for 4-5 hours then suddenly it increased to 50mA and now its -91mA since 2 hours continously. I am on Siyah Kernel. Smartassv2 kernel. Cpu underclocked to 1ghz. i Also have autokiller. brightness to lowest. And manually kill apps. I got the phone coz the my old iphone was not lasting a day but it did last 5-6 hours of screen on time. SGS2 doesnt give me over 3 hours of screen on time. NO WIFI. Just 2g data. Whatsapp every 10min. 4-5 min gaming a hour.
So you read the ten million battery faq posts and make a start with better battery stats thread and app .
TEST with a stock GB rom .
jje
JJEgan said:
So you read the ten million battery faq posts and make a start with better battery stats thread and app .
TEST with a stock GB rom .
jje
Click to expand...
Click to collapse
I didnt understand the first sentence . AND Yeah i am going to try the stock rom today. I even tried miui v4 as well as gingerbread version of miui but got no improvement.
Make sure you give it about 3 battery cycles download CPU Spy to see if your phone is going into deep sleep
Casterina said:
Make sure you give it about 3 battery cycles download CPU Spy to see if your phone is going into deep sleep
Click to expand...
Click to collapse
I think 15-16 charge cycles have completed. I flashing stock rom and then trying cm7 again or should i try miui?
MIUI GB is better in battery life comparing to ICS V4,
use with siyah kernel, with app Voltage control undervolt 25v each, noop + coservative, 200-1000mhz
giving good result.
zaheedahmed said:
MIUI GB is better in battery life comparing to ICS V4,
use with siyah kernel, with app Voltage control undervolt 25v each, noop + coservative, 200-1000mhz
giving good result.
Click to expand...
Click to collapse
i got stuck in bootloop after restoring from odin = lol. i will try what u told. Thank you !!
zarz123 said:
I didnt understand the first sentence .
It means all you need and all you ask is posted already and your post is now number ten thousand and 1 asking the same question .
Pity we have no FAQS or GUIDES
jje
Click to expand...
Click to collapse
Try pulling your battery out, leaving it 30s and putting it back in, I know that has helped some people get rid of some pretty annoying wakelocks(if wake locks are you problem), it has worked for me in the past
katestar said:
Try pulling your battery out, leaving it 30s and putting it back in, I know that has helped some people get rid of some pretty annoying wakelocks(if wake locks are you problem), it has worked for me in the past
Click to expand...
Click to collapse
i will try it
BTW i went back to stock GB rom. Get 1.5%/h drain without any apps installed.With apps i am gonna be so screwed. :|
zarz123 said:
i got stuck in bootloop after restoring from odin = lol. i will try what u told. Thank you !!
Click to expand...
Click to collapse
Do you flash with CWM?
It's much easier, yeah with moderate usage I could get 1.5/2 days battery life with stock battery It's a very good ROM, although the MIUI team have stopped developing due to the development of MIUI V4
Casterina said:
Do you flash with CWM?
It's much easier, yeah with moderate usage I could get 1.5/2 days battery life with stock battery It's a very good ROM, although the MIUI team have stopped developing due to the development of MIUI V4
Click to expand...
Click to collapse
U talking about miui gingerbread version right?There are so many miui roms. Makes it difficult to make out whats whAT.. i flashed the stock rom with odin. The other roms i flash via CWM itself..
zarz123 said:
U talking about miui gingerbread version right?There are so many miui roms. Makes it difficult to make out whats whAT.. i flashed the stock rom with odin. The other roms i flash via CWM itself..
Click to expand...
Click to collapse
basicaly all MIUI roms are same, some developers in XDA are just ported with some tweeks and modifications.
some of them are:
http://forum.xda-developers.com/showthread.php?t=1352386
http://forum.xda-developers.com/showthread.php?t=1502664
The country of Origin of the MIUI is China and released in Chinese language, but there are variouse fan sites who translate the ROM into their language and port with great support. www.miuiandroid.com is famouse among them in english language.
I am currently using MIUI GB ROM and really enjoying it
check it out
i flashed ressurection rom ics. i got 3% drain in 7 hours overnight which is quite good but now again loosing -57mA in standby ie around 3 or so %/h... BetterBatterystats under partial wakelocks shows AudioOut_1 for 3m 17s , RILJ for 1m 9s and few other things ..Kernel Wakelock is (0s)Cntc/wc/ec/)1/1/1 100%.
zarz123 said:
I didnt understand the first sentence . AND Yeah i am going to try the stock rom today. I even tried miui v4 as well as gingerbread version of miui but got no improvement.
Click to expand...
Click to collapse
JJEgan said:
So you read the ten million battery faq posts and make a start with better battery stats thread and app .
TEST with a stock GB rom .
jje
Click to expand...
Click to collapse
jje means to say thire r millions of posts on batt prblm y r u starting another wivout reading the already posted prblms ......anyways go thru the the batt drain(find in search)cause ull get an idea were ur wrong....i dont think cm9 gives good batt life but depends on wat no of apps u got..try the stock gb first..an there is no garanty tht the uv,oc or tweaks give u a marvelous batt life.....cheeeerz
so i went back to stock rom. Wiped out the storage. Reseted the phone. Installed nothing. Still i get -57mA battery drain that is almost 5-6% per hour in standby. I have searched like anything. I just cant seem to find anything. My android os usage is 70%. And the battery info shows phone awake for maximum time. i even undervolted on siyah kernel. Didnot use data at all but it shows no difference. Stock,Miui,Resurrection,cm7 no difference. I simply cant get over 4 hours of screen time and phone looses 20-25% over night with data disabled and no apps installed. Am seriously loosing faith on android.
I love S2 for every feature in it
But thats my 3rd mobile which is causing Android Os High Battery Usage problem and there is still no cause i find yet
tomorrow i bought a used s2 of o2 carrier which was unlocked for my country everything was fine i check that in market android os and system was on 2 %
but i just did factory reset for deleting data which was of old owner
and BOOOM here comes the android os high usage problem again
now i am trying everything like factory reset,firmware changing but still no chance and its draining battery its my 3rd mobile which cause my same problem and 3 of them was s2
i also try to find one click gremlin remover for s2 but its not available because that thing was my last hope please tell me what to do
Hi ...
As of I know it's better u try out custom roms..
Resurrection remix is the best ics ROM available..n it has got great battery life with siyah kernel..
Just search for the ROM in xda n install it .. :thumbup:
Sent from my GT-I9100 using xda app-developers app
zainbintariq12345 said:
I love S2 for every feature in it
But thats my 3rd mobile which is causing Android Os High Battery Usage problem and there is still no cause i find yet
tomorrow i bought a used s2 of o2 carrier which was unlocked for my country everything was fine i check that in market android os and system was on 2 %
but i just did factory reset for deleting data which was of old owner
and BOOOM here comes the android os high usage problem again
now i am trying everything like factory reset,firmware changing but still no chance and its draining battery its my 3rd mobile which cause my same problem and 3 of them was s2
i also try to find one click gremlin remover for s2 but its not available because that thing was my last hope please tell me what to do
Click to expand...
Click to collapse
The android os high battery usage could not be a problem though.. I think that if you keep your screen on for sometime, the screen on time will go to the first place.. and I suggest you to try ParanoidAndroid Jelly Bean
Sent from my GT-I9100 using Tapatalk 2
first of all it should be spelled "serious"
and now if you are coming from a different OS like symbian or ios then here is the hard truth all android phones pretty much have comparatively(to symbian) low battery....
and give it some time,a few battery cycles will improve battery life...
ps:i am on stock 4.0.3 rom my s2 only lasts 1.5 days max only if i don't play games.....
reddead66 said:
first of all it should be spelled "serious"
and now if you are coming from a different OS like symbian or ios then here is the hard truth all android phones pretty much have comparatively(to symbian) low battery....
and give it some time,a few battery cycles will improve battery life...
ps:i am on stock 4.0.3 rom my s2 only lasts 1.5 days max only if i don't play games.....
Click to expand...
Click to collapse
Brother thank you for reply and sorry i was in hurry so thats why it cause some spell mistake
and secondly i already mentioned that i got this problem on every s2 i bought i am trying to fight with that problem from past 1 year
and now i just buy an used s2 and it was good in start but i just did a factory reset and its start causing me problems
i am not new on android i know 1 day is good enough for it but what if its not even giving me one day?
zainbintariq12345 said:
Brother thank you for reply and sorry i was in hurry so thats why it cause some spell mistake
and secondly i already mentioned that i got this problem on every s2 i bought i am trying to fight with that problem from past 1 year
and now i just buy an used s2 and it was good in start but i just did a factory reset and its start causing me problems
i am not new on android i know 1 day is good enough for it but what if its not even giving me one day?
Click to expand...
Click to collapse
so you are facing problems only after factory reset??
did you install any particular app, maybe that is causing the drain...
i would suggest to do a factory reset once more and check without installing any app the battery life
TouchWiz gives high battery drain compared to custom ROM's, probably due to the bloatware.
I will never use TouchWiz on an android/galaxy phone, I will always use custom ROMS
richfreestone said:
TouchWiz gives high battery drain compared to custom ROM's, probably due to the bloatware.
I will never use TouchWiz on an android/galaxy phone, I will always use custom ROMS
Click to expand...
Click to collapse
So bro which is good Rom and kernel for improving battery
try using custom rom? I am using sensation rom 3.5 now and i like it
zainbintariq12345 said:
So bro which is good Rom and kernel for improving battery
Click to expand...
Click to collapse
Generally most people will agree that Resurrection Remix is a very good ROM for battery. But most ROM s that d not use the touch wiz is probably better.
Kibrisli7 said:
Generally most people will agree that Resurrection Remix is a very good ROM for battery. But most ROM s that d not use the touch wiz is probably better.
Click to expand...
Click to collapse
So you guys saying that Touchwiz is main problem? so please tell me any rom which is touchwiz and samsung apps and Bugs free
actually it was a bug in android 4.0.3 which displayed high android os battery consumption that was fixed in 4.0.4 by google
bluefa1con said:
actually it was a bug in android 4.0.3 which displayed high android os battery consumption that was fixed in 4.0.4 by google
Click to expand...
Click to collapse
Really? That is so much good news to hear, Can any one tell me what should i do after flashing new firmware in my s2 , Some peoples saying dont delete battery stats files its cause some fuel alert wakelocks and some are saying only deleting battery stats files can give you correct reading actually i was thinking that the cause of android Os high battery usage will be the incorrect reading of battery what you say ?
reddead66 said:
and give it some time,a few battery cycles will improve battery life...
Click to expand...
Click to collapse
Incorrect.
ONE complete battery cycle will re calibrate the fuel gauge chip. Once when i cycled my battery it stuck on 1% for over 4 hours. It does NOT give you longer battery life, rather it re calibrates the battery indicator.
OP if you want better battery life try this:
Use a custom rom, or a frankenrom if you like the stock feel, or a rom modded for better battery life
Look into what services are running and remove the ones that are running when not expected
remove the facebook app,
use less widgets (since they use more battery),
choose a darker background (AMOLED screens use the most power for white),
turn down the brightness,
have GPS, WiFi, and Bluetooth off when not needed,
turn off auto updates,
anything that automatically checks for stuff, turn that off or increase the delay,
Use a kernel that supports under-volting and under-clocking. You have a powerful phone which rarely needs to use all the power. Under-volting and under-clocking can help you get even several hours longer out of your device without a noticeable impact
Turn off those damn task killers. Its more efficient to not have a task running than to close it every 5 minutes and have it auto start up again. task killers were great for android 1.3, not so great for 4.0
In my class there is one other guy with an S2 and every day i hear his battery beep at him that its dying. I can go about 2 days of similar usage with no battery problems. Why? Because i spent time and effort to learn why my battery was draining and how to make my device run as smooth as i can.
TLR Do some research. If you want everything given to you buy an iPhone.
pileot said:
Incorrect.
ONE complete battery cycle will re calibrate the fuel gauge chip. Once when i cycled my battery it stuck on 1% for over 4 hours. It does NOT give you longer battery life, rather it re calibrates the battery indicator.
OP if you want better battery life try this:
Use a custom rom, or a frankenrom if you like the stock feel, or a rom modded for better battery life
Look into what services are running and remove the ones that are running when not expected
remove the facebook app,
use less widgets (since they use more battery),
choose a darker background (AMOLED screens use the most power for white),
turn down the brightness,
have GPS, WiFi, and Bluetooth off when not needed,
turn off auto updates,
anything that automatically checks for stuff, turn that off or increase the delay,
Use a kernel that supports under-volting and under-clocking. You have a powerful phone which rarely needs to use all the power. Under-volting and under-clocking can help you get even several hours longer out of your device without a noticeable impact
Turn off those damn task killers. Its more efficient to not have a task running than to close it every 5 minutes and have it auto start up again. task killers were great for android 1.3, not so great for 4.0
In my class there is one other guy with an S2 and every day i hear his battery beep at him that its dying. I can go about 2 days of similar usage with no battery problems. Why? Because i spent time and effort to learn why my battery was draining and how to make my device run as smooth as i can.
TLR Do some research. If you want everything given to you buy an iPhone.
Click to expand...
Click to collapse
Brother i am suffering from a very sereus problem i dont know my android system and android os battery usage goes to high i celibrate my battery many times but its not working for me
zain, dont fret yourself over the battery backup duration. With frequent usage, you will have to charge twice a day at the most. Your battery will still last 2 years.
xdevz said:
zain, dont fret yourself over the battery backup duration. With frequent usage, you will have to charge twice a day at the most. Your battery will still last 2 years.
Click to expand...
Click to collapse
Dear the first s2 i bought in 2011 and that time i used that mobile with the way i want to means i charge it at night and it give me whole day and i enjoy internet movies and many thing so thats why i am trying very hard to get my those days back but that android os bug is my worst enemy
zainbintariq12345 said:
Dear the first s2 i bought in 2011 and that time i used that mobile with the way i want to means i charge it at night and it give me whole day and i enjoy internet movies and many thing so thats why i am trying very hard to get my those days back but that android os bug is my worst enemy
Click to expand...
Click to collapse
Give up on Samsung ROMs and try some custom ROMs
Battery life on ICS is worse than gb but I can get 3 hour screen time and the phone lasts for over a day which is more than fine
Sent from my GT-I9100 using Tapatalk 2
quick tip
kernel settings or rom settings and quick qovernor setting switch it to ondemand
4) and it's very very annoying... so much so that I sometimes (multiple times in a day, actually) wish to get back to Android 2.3.3, which I had before updating to Samsung's (India) version of Android 4.1.2 for my GS2.
What could be the problem? I rarely ever connect to WiFi (am always connected to GPRS/EDGE, but that has never been a problem in the last 2 years... the phone still used to get nearly a day of battery life) and the brightness is almost always at the lowest. I rarely use Bluetooth, GPS, etc. I don't even use Facebook and WhatsApp anymore, so the screen isn't used to the max. I've turned off all the Location Sharing settings for Google Maps and/or other apps (I use very few apps anyway, but have a bunch of them installed on the phone... none that execute in the background though | also not more than a couple new apps after my OS upgrade).
It's been nearly a week since upgrading the OS on my phone. Last night when I hit the bed at 1.15AM my time, the battery was at 100% (after charging). With no activity whatsoever in the night, the charge had dropped to 88% by 9.35AM. That's less than 8.5 hours of no use and 12% charge gone. That never was the case earlier.
Also, for each minute of using the phone with the screen on, I notice 1-1.5% drop in the battery. That is, to put it very very mildly, PATHETIC!!!
I don't know what to do. Would a "clean rom" install help? If so, what exactly is a "clean rom" install?
Or should I be doing something else?
Any help would be greatly appreciated.
P.S.: Please let me know if any other info is needed too. BIG BIG Thanks in advance to anyone reading this
5) Read about jb settings/issues.
Sent from the little guy
Hi OP,
I haven't been on the i9100 for that long, but have also been annoyed with short battery life. As have many others from what I read. A 12% drop over about 8 hours of sleep, I'm sorry to say, doesn't seem that bad actually for an SGS2 with stock jb 4.1.2 and stock battery.
Personally, I tried different lightweight ROMs that are known to spare your battery. The advice to turn off 3g and other core functions never made sense to me, as I want an operable phone, not some sort of deflated piece of junk.
After reading on xda I went through Slimbean , Liquidsmooth, and other ROMs to see if they would increase battery life.
My current ROM is NeatROM 4.8, which actually seemed to give better results. Please note that this is purely subjective, though, I have no fancy battery analyses to back up my statement.
What REALLY helped was getting a replacement battery.
I tried Qcell 1950 mAh batteries. Stay away from those. They are clearly not 1950 mAh. Now running with a genuine Samsung 2000 mAh which is worth every dime.
Now I imagine you would be frustrated having to buy a new battery just because you updated your firmware and I do understand. I never owned the SGS2 before jb, so my choice was simple I guess. That having been said, though, the 2000 mAh battery really turned the phone into a whole new sort of usable. It easily lasts through the day even with regular use.
Just my 2 cents.
Sent from my GT-I9100 using xda app-developers app
S2 battery life
jsiv said:
Hi OP,
I haven't been on the i9100 for that long, but have also been annoyed with short battery life. As have many others from what I read. A 12% drop over about 8 hours of sleep, I'm sorry to say, doesn't seem that bad actually for an SGS2 with stock jb 4.1.2 and stock battery.
Personally, I tried different lightweight ROMs that are known to spare your battery. The advice to turn off 3g and other core functions never made sense to me, as I want an operable phone, not some sort of deflated piece of junk.
After reading on xda I went through Slimbean , Liquidsmooth, and other ROMs to see if they would increase battery life.
My current ROM is NeatROM 4.8, which actually seemed to give better results. Please note that this is purely subjective, though, I have no fancy battery analyses to back up my statement.
What REALLY helped was getting a replacement battery.
I tried Qcell 1950 mAh batteries. Stay away from those. They are clearly not 1950 mAh. Now running with a genuine Samsung 2000 mAh which is worth every dime.
Now I imagine you would be frustrated having to buy a new battery just because you updated your firmware and I do understand. I never owned the SGS2 before jb, so my choice was simple I guess. That having been said, though, the 2000 mAh battery really turned the phone into a whole new sort of usable. It easily lasts through the day even with regular use.
Just my 2 cents.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
yea.. u said it...even i have tried several custom roms ( NeatRom, WanamLite,RR etc) all give 15-19 Hrs max.. and this also by tweaking all the settings..
S2 is a undoubted beast, but the cost in terms of battery is very hight..my previous Android Motorola Defy was a Mammoth in itself..huge custom fanbase and loads of ROMS + Awsome battery.
Any ways i got no regretts for having a S2..but battery s a lil concern..
Currently am on Asnet MIUI V5 and its going good..fast, responsive, smooth and decent battery of 18 hours avg..
@jsiv - i wanted to ask u a question.. which country u hail from ?? because the stock 2000 mah battery is not available in India, my region.
Cheers:angel:
Do you calibrate battery after every ROM change?
Sent from my Nexus 4 using xda premium
gastonw said:
5) Read about jb settings/issues.
Sent from the little guy
Click to expand...
Click to collapse
Can you please point me in the "settings" direction? I think I'm doing all things right, going real low on app usage, sync-ing of apps, screen settings, etc.
vish91 said:
Do you calibrate battery after every ROM change?
Sent from my Nexus 4 using xda premium
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Click to collapse
What exactly is battery calibration here? Please pardon my ignorance. I did a full charge when my phone hit got switched off the day after upgrading the OS. Is there something else I must be doing here?
I've had this problem right after the upgrade. So, I don't think it's an issue with my battery per se. It could just be JB.
How good is the Cynaogen Mod ROM in terms of battery life?
Or would it be wiser to switch to Android 4.0/ ICS?
I live in Denmark. I ordered it off Ebay, but I see now that the UK shop I got it from doesn't ship to India.
You searched Ebay for "Samsung genuine 2000 mAh battery" or similar?
Sent from my GT-I9100 using xda app-developers app
theultimate1 said:
Can you please point me in the "settings" direction? I think I'm doing all things right, going real low on app usage, sync-ing of apps, screen settings, etc.
What exactly is battery calibration here? Please pardon my ignorance. I did a full charge when my phone hit got switched off the day after upgrading the OS. Is there something else I must be doing here?
I've had this problem right after the upgrade. So, I don't think it's an issue with my battery per se. It could just be JB.
How good is the Cynaogen Mod ROM in terms of battery life?
Or would it be wiser to switch to Android 4.0/ ICS?
Click to expand...
Click to collapse
Cyanogenmod roms are very fast ROM they are good as hell
Ur problem is genuine go to the playstore and download battery calibration app and follow the instructions in the app charge or battery up to 100 % and caliberate the battery u should have made an nandroid backup before upgrading
Sent from my Galaxy Nexus using xda premium
theultimate1 said:
Can you please point me in the "settings" direction? I think I'm doing all things right, going real low on app usage, sync-ing of apps, screen settings, etc.
What exactly is battery calibration here? Please pardon my ignorance. I did a full charge when my phone hit got switched off the day after upgrading the OS. Is there something else I must be doing here?
I've had this problem right after the upgrade. So, I don't think it's an issue with my battery per se. It could just be JB.
How good is the Cynaogen Mod ROM in terms of battery life?
Or would it be wiser to switch to Android 4.0/ ICS?
Click to expand...
Click to collapse
Battery calibration: http://forum.xda-developers.com/showthread.php?t=1312273
This has to be done every time you do a ROM upgrade or change ROMs.
CM has excellent battery life when compared to other ROMs.
If you are switching over to ICS stay away from version 4.0.4 as it has EMMC brick bug.Any other version would be fine.
theultimate1 said:
4) and it's very very annoying... so much so that I sometimes (multiple times in a day, actually) wish to get back to Android 2.3.3, which I had before updating to Samsung's (India) version of Android 4.1.2 for my GS2.
What could be the problem? I rarely ever connect to WiFi (am always connected to GPRS/EDGE, but that has never been a problem in the last 2 years... the phone still used to get nearly a day of battery life) and the brightness is almost always at the lowest. I rarely use Bluetooth, GPS, etc. I don't even use Facebook and WhatsApp anymore, so the screen isn't used to the max. I've turned off all the Location Sharing settings for Google Maps and/or other apps (I use very few apps anyway, but have a bunch of them installed on the phone... none that execute in the background though | also not more than a couple new apps after my OS upgrade).
It's been nearly a week since upgrading the OS on my phone. Last night when I hit the bed at 1.15AM my time, the battery was at 100% (after charging). With no activity whatsoever in the night, the charge had dropped to 88% by 9.35AM. That's less than 8.5 hours of no use and 12% charge gone. That never was the case earlier.
Also, for each minute of using the phone with the screen on, I notice 1-1.5% drop in the battery. That is, to put it very very mildly, PATHETIC!!!
I don't know what to do. Would a "clean rom" install help? If so, what exactly is a "clean rom" install?
Or should I be doing something else?
Any help would be greatly appreciated.
P.S.: Please let me know if any other info is needed too. BIG BIG Thanks in advance to anyone reading this
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Click to collapse
As reported before, it seems that many official JB ROMS are not as optimized as other national versions and are battery hungry. It was suggested to upgrade to the French release (XEF).
vish91 said:
Battery calibration: http://forum.xda-developers.com/showthread.php?t=1312273
This has to be done every time you do a ROM upgrade or change ROMs.
CM has excellent battery life when compared to other ROMs.
If you are switching over to ICS stay away from version 4.0.4 as it has EMMC brick bug.Any other version would be fine.
Click to expand...
Click to collapse
I did this... and unfortunately, it did nothing in my case.
I went to the CM site, but I didn't find any stable build for SGS2. Is there a thread on this site I can refer to for the same?
Also, what's the best way to go about installing a different ROM? I have so many apps, sms messages, pics, mp3 files, 3gp files, etc. Sure I can take a back-up onto my SD card. But won't I lose all the apps once I flash the current Android installation and install a new ROM? Any article or video on YouTube that addresses these points? Please point me in the right direction. I practically don't use my phone even half as much as before and I'm having to charge it twice a day, as against once a day earlier.
Also, the rapid battery loss seems to be causing the phone to heat up a lot if I'm on a call longer than 15 minutes or having the screen on for 2-3 minutes straight.
theultimate1 said:
I did this... and unfortunately, it did nothing in my case.
I went to the CM site, but I didn't find any stable build for SGS2. Is there a thread on this site I can refer to for the same?
Also, what's the best way to go about installing a different ROM? I have so many apps, sms messages, pics, mp3 files, 3gp files, etc. Sure I can take a back-up onto my SD card. But won't I lose all the apps once I flash the current Android installation and install a new ROM? Any article or video on YouTube that addresses these points? Please point me in the right direction. I practically don't use my phone even half as much as before and I'm having to charge it twice a day, as against once a day earlier.
Also, the rapid battery loss seems to be causing the phone to heat up a lot if I'm on a call longer than 15 minutes or having the screen on for 2-3 minutes straight.
Click to expand...
Click to collapse
There is no stable version of CM 10 on I9100 because of the some issues. You can flash one of the nightly builds.They might not be necessarily unstable.
No you wont be losing everything when you install a new ROM.You lose once you do a data wipe.It is suggested you wipe everything before you install a new ROM.
With a data wipe you'll lose the following - SMS,contacts,call logs,apps installed and respective data.
What you wont lose - Anything stored in the sdcard partition - Pictures, Videos, Music, Apk files and Anything stored on the Ext SD card.(unless you format them specifically)
Best solution is to use titanium backup app(You need root). This way you can backup your apps and resp. data,wipe data-install ROM,and restore the previous backup on the new ROM.
Tutorial : http://forum.xda-developers.com/showthread.php?t=1972455
As far as the battery issue is concerned,do a clean ROM install through Odin.
Index of guides : http://forum.xda-developers.com/showthread.php?t=1826497