Related
Hello.
I am about to buy the SGS2 and have a couple of questions before I go ahead with my purchase. Currently I have a HTC Desire, and need to know how much I need to change. Here we go:
1) Battery life: I know that it very much varies depending on the usage, but given on average how many hours/days do you actually get out of that battery. With Desire, I am getting 1.5days on medium/low usage.
2) USB: I have a few usb's that were bought for my Desire, and was wondering if I could use them with SGS2? I am specially concerned about the mini-usb ending and its shape. Could anyone confirm whether it looks similar to this or not:
http://www.universalgadgets.co.uk/images/products/Big11_e947682u6x5it.jpg
3) In terms of recoveries and etc, does such thing exist with SGS1/2? Can I use the ClockWorkMod recovery with this?
4) Is the panel full-true multi-touch? Not emulated, since I 'heard' that SGS1 was emulated, and you could only use two fingers in specific motion. This was not the case with HTC Desire, and definitely not the case with iPhone. (please don't bite me for using the 'i' word here ;P )
5) Also, any issues that you (personally) have had with SGS1/2?
I appreciate your help, since I am going to pay £500, thought I should ask my questions first.
Thank you,
Mo.
nothing against u but how can u compare skoda with latest mercedes? are u mad? if u have enough money to buy sgs2 why would u use outdated acesories?
and your questions can be answered...look futher this web site... HTC battery life sux btw...and its well known information...
regards
Hunteres said:
nothing against u but how can u compare skoda with latest mercedes? are u mad? if u have enough money to buy sgs2 why would u use outdated acesories?
and your questions can be answered...look futher this web site... HTC battery life sux btw...and its well known information...
regards
Click to expand...
Click to collapse
Thanks! I had already done a google search, XDA search and youtube search, nothing that could be found (which was proven useful for me).
Don't get me wrong, I am not comparing HTC Desire with SGS2. That would be stupid. Hence why I am buying SGS2.
About accessories: The question is, why would I need to buy more accessories - If I can use the one that I already have?! Also, since when, USB2's can get outdated??!
Battery life: On HTC website, it says that it has up to 340hrs of standby time. That's a lie. Also, the battery is only 100mA less than SGS2 battery (yes I know dual core and etc etc). So, again, how many days you are 'actually' getting from this?
Thank you,
Mo.
But the question that remains is, how much battery do you actually get?
mofirouz said:
Hello.
I am about to buy the SGS2 and have a couple of questions before I go ahead with my purchase. Currently I have a HTC Desire, and need to know how much I need to change. Here we go:
1) Battery life: I know that it very much varies depending on the usage, but given on average how many hours/days do you actually get out of that battery. With Desire, I am getting 1.5days on medium/low usage.
2) USB: I have a few usb's that were bought for my Desire, and was wondering if I could use them with SGS2? I am specially concerned about the mini-usb ending and its shape. Could anyone confirm whether it looks similar to this or not:
http://www.universalgadgets.co.uk/images/products/Big11_e947682u6x5it.jpg
3) In terms of recoveries and etc, does such thing exist with SGS1/2? Can I use the ClockWorkMod recovery with this?
4) Is the panel full-true multi-touch? Not emulated, since I 'heard' that SGS1 was emulated, and you could only use two fingers in specific motion. This was not the case with HTC Desire, and definitely not the case with iPhone. (please don't bite me for using the 'i' word here ;P )
5) Also, any issues that you (personally) have had with SGS1/2?
I appreciate your help, since I am going to pay £500, thought I should ask my questions first.
Thank you,
Mo.
Click to expand...
Click to collapse
1) My battery life has been able to last me through a full day of use. It doesn't have amazing battery life but, it doesnt have terrible battery life. I usually go through around 15-18 hours of use on it. Texts, some games, internet browsing, and a lot of music use and I still haven't had the battery die on me before the day is over.
2) That USB cord should work fine with the SGS II
3) As of right now, there isn't a CWM recovery for the SGS II but, Samsung uses a program called Odin where you can flash different things.
4) As far as I know, the SGS II supports full multi-touch. I remember seeing a video of them testing it can't find the link tho :/
5) The only issue I have with it so far is once its fully charged a notification appears. It might not seem like a problem but, it has woken me up once or twice which is annoying.
Hope this helps.
mofirouz said:
Thanks! I had already done a google search, XDA search and youtube search, nothing that could be found (which was proven useful for me).
Don't get me wrong, I am not comparing HTC Desire with SGS2. That would be stupid. Hence why I am buying SGS2.
About accessories: The question is, why would I need to buy more accessories - If I can use the one that I already have?! Also, since when, USB2's can get outdated??!
Battery life: On HTC website, it says that it has up to 340hrs of standby time. That's a lie. Also, the battery is only 100mA less than SGS2 battery (yes I know dual core and etc etc). So, again, how many days you are 'actually' getting from this?
Thank you,
Mo.
But the question that remains is, how much battery do you actually get?
Click to expand...
Click to collapse
mate u didnt do a research...if u did u will find out that SGS2 has far better battery performance then any HTC..thats mean heavy ussage - very heavy + gaming etc is around 12-16 hours - medium use is more then 24h and soft usage with 3g on and sync on + phone calls and some wifi is about 1,5-2 days..i hope thats enough ..about battery..
Super Amoled plus - latest technology display - full multi touch ..extremly well responsive - once again..latest technology!...
and if u wanna know more about battery performance there is already topic about it...but i believe u saw it..right?
regards
I have just moved from the HD2 (on Gingerbread) so a close match for your Desire. I was getting battery down to an average of 60% after 24hrs SGS2 is about 70% on the same useage. My car charger works just the same . No clockwork yet, but most devs have only just managed to get their hands on one this week and there is already one rom available. Multi touch works. I loved my HD2 (still do) but this is better.
ok, cool. Thank you guys. Answered my questions
In terms of battery life, I put a lot of effort into tweaking the crap out of my Desire. Using VillianROM and an undervolted+underclocked cpu I tended to sit around 70% after a regular workday, which was probably twice what I had on stock.
My SGS2 is completely unmodified or rooted, running stock KE2. The same usage patterns yield me around 85% battery after a full workday, and under heavy web browsing the battery life difference seems even more pronounced.
Factoring in the fact that I'm experiencing the documented battery drain bug causing aroung 50% of my battery usage to be taken up by "Android OS" and "WiFi Sharing", I would expect this battery life to improve quite significantly beyond this point once this bug is fixed.
tl;dr Battery life is acceptable, and much better than Desire. Expect it to be extremely good once a few software bugs are fixed.
Q: I WAS told this phone won't work on t-mobile. Only at&t.
Any 1 running it on tm? Advice plz
Vibrant
I'm a new Galaxy S II (and new Android) user, and am a bit disappointed in the battery life of my new phone. It was running down extremely quickly yesterday, only lasting about 12 hours with relatively normal use (sending half a dozen texts, downloading 2 apps, checking Facebook and Twitter once an hour or so for a couple of minutes throughout the day). I allowed the phone to discharge completely and charged it fully last night, but this morning nothing seems to have improved. I burned up 10% of the battery in half an hour sending 2 texts, checking my emails, Facebook and Twitter and downloading and trying out a couple of apps.
I'm anxious to know if there's a bit of a burn-in time with the battery on this thing - does it get better after a few charges? I see a lot of people saying they can have the phone on for a few days in some cases, but that's definitely not my experience thus far.
I've installed JuiceDefender (balanced profile), AutoKiller Memory and Advanced Task Killer to try to sort things out but none of them seem to having too much effect and to be quite honest I'd rather not have to compromise my experience by running a number of apps like this to try to extend my battery life at all (nor do I want to have to turn the brightness right down to an unusable level, or set black wallpapers for example).
Does anyone have any real advice on this? I'm starting to think that switching ROMs might be worthwhile? I see that the leaked 2.3.4 ROM seems to have better battery life - is this correct? I'm a bit reluctant to switch to any other unofficial ROMs as there are so many I wouldn't know where to start. It seems they all make a lot of changes but I'd want to keep as close to the stock feel as possible, just with better battery life.
no one uses stock roms/kernels nowadays. u should flash a custom rom or kernel since they provided optimizations to batt life.
StevenBX said:
I'm a new Galaxy S II (and new Android) user, and am a bit disappointed in the battery life of my new phone. It was running down extremely quickly yesterday, only lasting about 12 hours with relatively normal use (sending half a dozen texts, downloading 2 apps, checking Facebook and Twitter once an hour or so for a couple of minutes throughout the day). I allowed the phone to discharge completely and charged it fully last night, but this morning nothing seems to have improved. I burned up 10% of the battery in half an hour sending 2 texts, checking my emails, Facebook and Twitter and downloading and trying out a couple of apps.
I'm anxious to know if there's a bit of a burn-in time with the battery on this thing - does it get better after a few charges? I see a lot of people saying they can have the phone on for a few days in some cases, but that's definitely not my experience thus far.
I've installed JuiceDefender (balanced profile), AutoKiller Memory and Advanced Task Killer to try to sort things out but none of them seem to having too much effect and to be quite honest I'd rather not have to compromise my experience by running a number of apps like this to try to extend my battery life at all (nor do I want to have to turn the brightness right down to an unusable level, or set black wallpapers for example).
Does anyone have any real advice on this? I'm starting to think that switching ROMs might be worthwhile? I see that the leaked 2.3.4 ROM seems to have better battery life - is this correct? I'm a bit reluctant to switch to any other unofficial ROMs as there are so many I wouldn't know where to start. It seems they all make a lot of changes but I'd want to keep as close to the stock feel as possible, just with better battery life.
Click to expand...
Click to collapse
It is argued that task killers and memory killers will only make the problem worse. Juice Defender might be useful if you are using it for scheduling sync and turning WI-FI off when the screen is off, but this feature is only present in the Ultimate edition and you can turn off sync and WI-FI manually if you want. Also beware of rogue apps which are syncing all the time. It is normally the main reason of poor battery life.
Other reason, is that whereas powerful tech specs for phones were rapidly developed, battery technology didn't followed the pace. Our simply batteries cannot cope with our beasts.
Also, there is a thing that it's called "new phone battery blues" which is described as poor battery life due to excessive use of a new powerful toy. After you use your phone normally, for the purposes that normally people use a phone, your battery life will became better.
That said, personally I have a spare battery and a spare charger, and when the battery being used is low, I replace it with the charged one. Sometimes it is necessary, sometimes not.
poch_1421 said:
no one uses stock roms/kernels nowadays. u should flash a custom rom or kernel since they provided optimizations to batt life.
Click to expand...
Click to collapse
They also have a tendency to look very tacky I think though. I think Samsung's skin and widgets are pretty nice and don't care too much for the mods I see in the screens of most ROMs. I'm really looking for something very similar to stock, except with better battery life if there are any suggestions? That's why I was thinking of just jumping to the leaked 2.3.4 if it had any noticeable impact on battery life...
Try using better battery stats, link in my sig, to see if you have any wakelocks, the thread has a good howto on using it.
The biggest thing that uses the battery on this phone is the screen, you will get between 4 and 6 hours of screen on time depending on usage and screen brightness.
Sent from my GT-I9100 using xda premium
Get the original samsung 2000mah extended battery kit.
ahh the battery life talk again
brings back memories of the first days of the SGS2
never thought of reading one again
update to the newest ROM
and read the 1000+ threads about this topic
good day sir
StevenBX said:
They also have a tendency to look very tacky I think though. I think Samsung's skin and widgets are pretty nice and don't care too much for the mods I see in the screens of most ROMs. I'm really looking for something very similar to stock, except with better battery life if there are any suggestions? That's why I was thinking of just jumping to the leaked 2.3.4 if it had any noticeable impact on battery life...
Click to expand...
Click to collapse
Fair point - not all of the roms are everyone's cup of tea. My advice, as a starting point is to flash the stock XXKH3 variant for your area, and then flash a custom kernel, such as Ninphetamine's or Hardcore's Speedmod. This will greatly help with battery life, and also give you the ability (via root access) to use Titanium Backup to freeze apps and services you're not using, which is often the major cause of battery drain through 'wakelocks'; apps that prevent your phone from entering Deep Sleep, or continuously wake it up.
Update to the latest version in your area, uninstall those task killers and whatnot or do a factory reset, install the apps that you are going to use normally like facebook twitter and install better battery stats, decrease brightness to your most tolerable level.
use the phone normally and when the battery is low, use the tool provided in android to check if your phone is sleeping when the screen is OFF, if you are having wakelocks, then use better battery stats to find which apps are causing the wake locks.
No need to install battery management apps, or task killers or memory optimization apps (or as custom rom as yet), that would only compound you problem which may be a very small one to begin with
Thanks for the help so far guys. I've installed XXKH3 and flashed hardcore's Speedmod kernel, and am just getting things set back up the way I like them again. I'm going to uninstall the battery saving apps for now and see how the battery lasts the next couple days.
I'll install Better Battery Stats and keep an eye on any wakelocks too.
Thanks for pointing me in the right direction - it was all very simple and quick to get set up; the sheer number of kernels, ROMs, etc. is all a little overwhelming to me right now, being new to Android!
poch_1421 said:
no one uses stock roms/kernels nowadays. u should flash a custom rom or kernel since they provided optimizations to batt life.
Click to expand...
Click to collapse
I'm using stock KH3 with a stock kernel and am perfectly happy with the battery life ...
Im also a noob just got phone. Coming from evo, how do I root,
Sent from my SPH-D710 using xda premium
StevenBX said:
They also have a tendency to look very tacky I think though. I think Samsung's skin and widgets are pretty nice and don't care too much for the mods I see in the screens of most ROMs. I'm really looking for something very similar to stock, except with better battery life if there are any suggestions? That's why I was thinking of just jumping to the leaked 2.3.4 if it had any noticeable impact on battery life...
Click to expand...
Click to collapse
there are other tweaks with custom roms that aren't found in the stock rom (which provides better functionality).
btw, i also suggest u use setcpu to underclock your device to save more batt.
--------
chalid said:
I'm using stock KH3 with a stock kernel and am perfectly happy with the battery life ...
Click to expand...
Click to collapse
wow, good for you
I used HTC Desire before this device, and the roms on there actually hindered battery life, even with all the fancy underclocking, so I am betting, without even attempting to brick my phone, that they are just as overhyped on this phone too.
I get two to three days out of my phone, using it as a PHONE. I can send and receive emails and texts all day, along with phone calls and the occasional browsing and still get at least two days before it dies. I turn off data when I dont want it and stick it in 2G mode and it dares me to kill the battery.
Just let usage settle down and it's fine
Uamore6 said:
Im also a noob just got phone. Coming from evo, how do I root,
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I used this guide to install the latest firmware, and this guide to root it when I was done.
---------- Post added at 03:11 PM ---------- Previous post was at 02:59 PM ----------
poch_1421 said:
there are other tweaks with custom roms that aren't found in the stock rom (which provides better functionality).
btw, i also suggest u use setcpu to underclock your device to save more batt.
Click to expand...
Click to collapse
I've now installed SetCPU too, set to OnDemand. Thanks for the suggestion!
StevenBX said:
I used this guide to install the latest firmware, and this guide to root it when I was done.
---------- Post added at 03:11 PM ---------- Previous post was at 02:59 PM ----------
I've now installed SetCPU too, set to OnDemand. Thanks for the suggestion!
Click to expand...
Click to collapse
Beware using anything that isnt ondemand on samsung phones, can cause stuttering, that's what I found anyway.
As far as undervolting -25 to -50mv is a safe first bet.
Sent from my GT-I9100 using xda premium
poch_1421 said:
no one uses stock roms/kernels nowadays. u should flash a custom rom or kernel since they provided optimizations to batt life.
Click to expand...
Click to collapse
Which ones provide the best battery life?
It's not very helpful if you don't direct this poor guy in any direction.
Cheers!
vlad88667 said:
Which ones provide the best battery life?
It's not very helpful if you don't direct this poor guy in any direction.
Cheers!
Click to expand...
Click to collapse
Use touch x-power 1.0
It is optimized for battery life
Sent from my GT-I9100 using XDA App
stop the madness.... just disable Gtalk autologin and you'll have x3 batt life....
i'm still on KG2 and see no need to update, as i easily get 2d+ battery life now...
EDIT: oh, and custom roms is for nerds. that's it. stock only.
poch_1421 said:
no one uses stock roms/kernels nowadays. u should flash a custom rom or kernel since they provided optimizations to batt life.
Click to expand...
Click to collapse
That is wrong. I used to have a UGKG2 ROM and since I upgraded to XXKH3, the battery is MUCH better while the GPS pinpoints in less than 3 seconds with a 5meters accuracy.
Just a thread to see what the majority of people are choosing to run right now and which you have tested as well. This is NOT intended to be any type of a bashing thread, just please stick to what you've tested and what you've chosen to currently use.
As for myself, I'm running UnNamed from gtg and have been for a bit now. I've removed a few additional pieces of software that I didn't want and modified the battery icon but other than that, it's pretty much as is.
I've tested and have a backup of CM 7 and I'm planning to test Cognition next...
I am running UnNamed, I had a circle battery mod, but flashed the full update and have stuck with it as-is. I ran Cognition with no issues or complaints, but wanted the extended power menu.
Sent from my SGS II
I'm running Cognition as of yesterday. For a few days before that I was running a stock + root ROM.
I must say, my battery lasts sooooooo much longer since installing Cognition compared to Stock. I just now hit 90% and it's been off the charger (getting regular use: some idle, some web browsing, some pp installs) for about 6 hours now.
I love it.
Kadin said:
Just a thread to see what the majority of people are choosing to run right now and which you have tested as well. This is NOT intended to be any type of a bashing thread, just please stick to what you've tested and what you've chosen to currently use.
As for myself, I'm running UnNamed from gtg and have been for a bit now. I've removed a few additional pieces of software that I didn't want and modified the battery icon but other than that, it's pretty much as is.
I've tested and have a backup of CM 7 and I'm planning to test Cognition next...
Click to expand...
Click to collapse
I'm on Cognition and haven't tried others, yet. It works and as ROMs have appeared, I've pulled what I wanted from them. I get great battery life (3 hours of display time, but lately it's been increasing - yesterday I got 4 and today I'm on pace for over 5 hours of display ). I'm really interested in CM7. I hadn't tried it yet because I'm not convinced that it's bug free (which is important for me). What did you think of it?
I'm getting such poor battery life still, even after rooting and removing data hogs (AP Mobile, etc.), running BBS and CPUSpy to monitor, and turning off unnecessary sync. I'm thinking about moving to Cognition, but I kinda like Touchwiz's interface and the safety of running stock.
Simba501 said:
I'm on Cognition and haven't tried others, yet. It works and as ROMs have appeared, I've pulled what I wanted from them. I get great battery life (3 hours of display time, but lately it's been increasing - yesterday I got 4 and today I'm on pace for over 5 hours of display ). I'm really interested in CM7. I hadn't tried it yet because I'm not convinced that it's bug free (which is important for me). What did you think of it?
Click to expand...
Click to collapse
I liked CM7. I probably didn't give it enough time to make an accurate assessment of it as I liked the idea of trying UnNamed simply because I like the stock build as it is... minus the garbage bloatware and wanted the extended power menu. I'd highly recommend giving CM7 a shot though. I simply get each rom running and then do a full nandroid backup in case I want to go back in the future - barring any major improvements of course in which case I'll start out fresh.
Dranakin said:
I'm getting such poor battery life still, even after rooting and removing data hogs (AP Mobile, etc.), running BBS and CPUSpy to monitor, and turning off unnecessary sync. I'm thinking about moving to Cognition, but I kinda like Touchwiz's interface and the safety of running stock.
Click to expand...
Click to collapse
I have to say that I was never much of a believer in Juice Defender but between running that program and doing a battery calibration with the app, BatteryCalibration, my battery life has increased quite a bit. I've still got Gmail auto syncing but I have turned off 'Back up my data' in Privacy and keep GPS off until I need it. Everything else is running as is. Oh and no Facebook or Words with Friends. I login to Facebook via Dolphin HD when I have to check it on the go.
Running UnNamed 1.0.3 and really like it. Clean, snappy and excellent battery life (yes, better than stock rom).
verncat05 said:
Running UnNamed 1.0.3 and really like it. Clean, snappy and excellent battery life (yes, better than stock rom).
Click to expand...
Click to collapse
+1 for UnNamed.... love that rom!
Ive been on cog beta 4 for a while and it is perfect. Picked up DD exp kernal a few days ago and its still perfect. Perfect combo i guess. Battery life is amazing. After 15 hour days i am always getting 4 hours of screen on time along with playing music thoughout the day and few calls and messages data and sync always on.
I have yet to have any problems and gonna make this my offical "go back to, stable rom" when others start to drive me nuts. I would like to just stay on this rom and call it good cause its perfect but that never happens.
Sent from my SAMSUNG-SGH-I777 using xda premium
UnNamed 1.0.3 for the past two days. Had no issues and I like the added features. This is the only custom ROM I tried so far.
roadrash7 said:
Ive been on cog beta 4 for a while and it is perfect. Picked up DD exp kernal a few days ago and its still perfect. Perfect combo i guess. Battery life is amazing. After 15 hour days i am always getting 4 hours of screen on time along with playing music thoughout the day and few calls and messages data and sync always on.
I have yet to have any problems and gonna make this my offical "go back to, stable rom" when others start to drive me nuts. I would like to just stay on this rom and call it good cause its perfect but that never happens.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Wow.... That sounds impressive. I may need to give that rom a whir then.
New to the galaxy note, any suggestions for roms with good battery life?
blackstar☆ and pawdan for me opinion you try for 2 or 3 day and see who like you
Sent from my SAMSUNG-SGH-I717 using xda premium
I've tried every rom available here ...for the I717 ..
And "For Me"..
The best battery life comes from the following builds ..
Saurom ..GB 2.3.6 .....and ..
Flappjaxxx UCLF6 ICS Build #5.
But please remember, that I prefer zeam launcher, and use only a handful of apps and never Widgets.
You simply have to try the builds for yourself, and determine the best balance between performance and features.
But more importantly, the 717 runs best without overclock..IMHO ...and basically using a stock kernel.
Optimization of the build for the device is very important in maintaining a smooth and functional file structure....
That being said, I stick with slightly modified stock builds for the note, and I always disable the stock Touchwiz launcher, as I can confirm it's a battery hog.
But invariably, I feel that Samsung did an excellent job when optimizing GB, while ICS is larger and not as refined...and JB official will correct the ICS bugs.
We can only hope that Samsung releases the JB we see on the note 2....as it truly is an exceptional build.
Good luck in your flashing and optimization of the builds you choose ...g
BlackStar X did the trick for me. I also turned sync off and manually sync my email account. Turning data off also helps otherwise when screen is off battery keeps draining.
I'm also looking for a battery saving ROM. This is insane. Data is rarely on and it's almost always on WiFi. I'm a average to low user. Don't play any games, make a handful of calls a day, text more often. Screen is on for maybe a few minutes at a time.
Currently on Blackstar XI DXLJ2 and it's absolutely horrible. Gonna try Blackstar X and see if it's any better.
quickbird144 said:
I'm also looking for a battery saving ROM. This is insane. Data is rarely on and it's almost always on WiFi. I'm a average to low user. Don't play any games, make a handful of calls a day, text more often. Screen is on for maybe a few minutes at a time.
Currently on Blackstar XI DXLJ2 and it's absolutely horrible. Gonna try Blackstar X and see if it's any better.
Click to expand...
Click to collapse
Watch yourself. I don't do horrible. Lmao. Seriously.
ThE UnknowN
bigfau said:
Watch yourself. I don't do horrible. Lmao. Seriously.
ThE UnknowN
Click to expand...
Click to collapse
Didn't mean it like that! Lol. The ROM itself was amazing, but the battery life was the complete opposite. Again, ROM was GREAT!
quickbird144 said:
Didn't mean it like that! Lol. The ROM itself was amazing, but the battery life was the complete opposite. Again, ROM was GREAT!
Click to expand...
Click to collapse
The battery life is no different than any other DXLJ2 rom.
ThE UnknowN
All roms are exactly the same on battery life... That is until you've tested it on your device.
Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
Its how you use you phone and what you use on your phone that determines the battery life. From a development standpoint, there are minor changes that we can implement to improve battery duration. The difference will be negligible. You might notice an in increase in your battery, but again it won't be much.
ThE UnknowN
Yeah, differences aren't too large. For example, your screen on time will always be in the 4 hour range if you have a medium-ish brightness.
With that said, sometimes a ROM can have a bug and your standby time suffers. I've also noticed the battery curve is sometimes different so it would appear the battery level drops faster but then it slows down and the total time ( from 100 to 0) ends up being the same.
ChronoReverse said:
Yeah, differences aren't too large. For example, your screen on time will always be in the 4 hour range if you have a medium-ish brightness.
With that said, sometimes a ROM can have a bug and your standby time suffers. I've also noticed the battery curve is sometimes different so it would appear the battery level drops faster but then it slows down and the total time ( from 100 to 0) ends up being the same.
Click to expand...
Click to collapse
Holy crap. I'm lucky if I get 2 hours screen on, but thats with auto brightness. maybe I need to set it to medium brightness.
But I too have noticed some large battery differences on ROMS with the same base/kernel. I don't understand it, because as stated, the rom doesn't affect battery much.
I've since found a ROM, that with using it the same exact way, battery life is substantially better. That comment wasn't to offend a developer or get into a debate. Obviously a major part is how you use the phone, I know this.
quickbird144 said:
I've since found a ROM, that with using it the same exact way, battery life is substantially better. That comment wasn't to offend a developer or get into a debate. Obviously a major part is how you use the phone, I know this.
Click to expand...
Click to collapse
You didn't offend me. Lmao. I probably know what Rom you are referring too. And I doubt its that it's better. I run all the roms and test them all. Pretty much the same all across the board. In the end it's the user who matters.So if you found a rom you belive is better for you battery wise, then kudos. Im glad you found a rom that works best for you.
ThE UnknowN
Right on.
Back to basics shall we.
mike208 said:
Holy crap. I'm lucky if I get 2 hours screen on, but thats with auto brightness. maybe I need to set it to medium brightness.
But I too have noticed some large battery differences on ROMS with the same base/kernel. I don't understand it, because as stated, the rom doesn't affect battery much.
Click to expand...
Click to collapse
It also depends if you're using LTE. I should qualified my assertion with "just playing video using the hardware decoder".
I went I the play store and bought juice defender ultimate. Makes a big difference, well worth the money in my opinion.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Here's a little story for ya.
I started out using Ginger stock, the interface felt sluggish coming from an iphone4 (wow I haven't typed "iphone" in such a long time, I feel weird!)
After mucho research, I went for the Eclipse rom. Ultra smooth, gotta love it. Like every other rom (so I've heard), I still get random reboot, but very few, about once a week and sometimes don't get it at all. Battery life is crazily good, loses about 4% overnight with "interactive governor". Music player always stop responding on first open. But I can live with that, just kill app and reopen and it's good to go. Overall, using the Eclipse rom has been a very nice experience.
Then I tried Novena (ICS rom I believe), the interface wasn't as smooth as JB, the battery also drains fast for some reason (yes I have turned off every option that could potentially drain the battery), so I moved on...
Then I tried JellyBeer, smooth just like Eclipse but with more options. However, the battery also drains pretty fast, why? I really don't know, played around for hours but still couldn't figure it out.
At last, I came back to Eclipse, everything is almost just how I want the phone to be.
In retrospect, I hit the jackpot on the first try. But it is certtainly worth the attempt to flash a variety of roms, eventually you will find the one that delivers.
You do know it takes a couple charge cycles for the rom and battery to "settle in" with each other right?
You can't judge Battery life by the few hours you have a rom flashed.. which I bet you were playing with the phone the whole time as well setting everything up the way you like seeing what other options are available all that jazz, making it seem like the rom was killing your battery even more.
Pitting these FREE roms against each other when it really comes down to end user, is unfair to the developers who do this unpaid in their free time.
studacris said:
You do know it takes a couple charge cycles for the rom and battery to "settle in" with each other right?
You can't judge Battery life by the few hours you have a rom flashed.. which I bet you were playing with the phone the whole time as well setting everything up the way you like seeing what other options are available all that jazz, making it seem like the rom was killing your battery even more.
Pitting these FREE roms against each other when it really comes down to end user, is unfair to the developers who do this unpaid in their free time.
Click to expand...
Click to collapse
Be a man, some works and some just don't. Your mileage may vary.
To quote myself:
"It is certtainly worth the attempt to flash a variety of roms, eventually you will find the one that delivers."
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
Click to expand...
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
Click to expand...
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