Am I the only one impressed by the SGS2's battery life? - Galaxy S II Q&A, Help & Troubleshooting

After reading through so many threads about owners having issues with the battery life, I thought I'd start a happy thread!
I've had my SGS2 for almost two weeks now and I've always been happy with the battery life because it seemed to last a while.
I'm not up to the stage where i can just leave the phone alone (because I always want to play with it!), but I did an experiment 3 nights in a row to see how much power the phone drains in standby mode.
Each night, I'd charge my phone up to 100% and take it off the charger and then wake up to see how much power is remaining.
I left all the settings as-is and DID NOT turn anything off (eg 3G, etc).
The first night, I didnt touch my phone from 11pm and woke up at 7am to see that there was 97% battery left.
The second night, I left the phone alone at 11:30pm and woke up at 8am with 96%.
The third night, I slept at midnight and woke up at 8am to have 97% left.
If I average it out, it means that the phone on standby drains a lot less than 1% per hour. At that rate, the bettary seems like it can go with minimal use for at least two or three days. But it's something that I haven't been able to test just yet because I'm constantly surfing the net, testing out apps, etc during the day.
Admittedly, I don't have all that much installed on the phone that could possibly drain battery:
Friend Caster
Kakao
Whatsapp
Crazy Colours Live Wallpaper
Seekdroid
Official EBay
Battery Solo Widget
"Standard" clock
"Applications Running" widget
(I've got more applications, but the ones listed above are the ones that might have some sort of network connection and/or widgets that may need to update during the night).
I'm also using stock Vodafone Australia firmware in Melbourne city (in Australia):
Baseband: I900TDUKF4
Kernel Version: 2.6.35.7-I9100TDUKF4-CL331615
Build Number: GINGERBREAD.DUKF4
Does anyone else get battery life like this?
I'm not sure how big a role the network plays in these stats because I'm based in the centre of a major city.
As much as I hate the Vodafone bloatware, I've been reluctant to flash other firmwares like I did on my previous HTC Aria/HTCHD2/HTCDiamond because this one works so well with the battery.

3% battery over night ?. I get under 10%, with all off what can be off, with no funky widgets, no data, no wifi, no nothing. Still phone wakes up in the night for unkown reason and 80% of battery is taken by mysterious Android OS process.

I had Optus bloatware and I kept it for a week or two. I wasn't unhappy with the battery life but wanted to customise it and get root.
After flashing Lite'ning it was obvious how much less battery drain there was. I have since moved to Cognition and I am very happy with how it's going. I charge nightly, but I've never had the battery drop below 50%, and I do use the phone quite a lot. I wouldn't say I'm a heavy user (it's all so subjective) but I would have to be at least medium if not more.
I also love the Black Theme by Nitrozk and Pele, which is why I moved from Lite'ning to Cognition to begin with.

Dr.Sid said:
3% battery over night ?. I get under 10%, with all off what can be off, with no funky widgets, no data, no wifi, no nothing. Still phone wakes up in the night for unkown reason and 80% of battery is taken by mysterious Android OS process.
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Click to collapse
That is a problem with the 2.3.3 firmware mate. Best switch to 2.3.4 ASAP!

To answer your question, yes, I'm hugely impressed by the battery life.
Here's my latest and I'm still at 15%. I'm bone stock on KF3 with all the syncs set to every three hours and using Exchange push.
People blame everything (Wi-Fi Sharing, AOS) for their issues except what they do to their individual phone. Network signal strength plays a big role so does the individual router used for Wi-Fi access. But outside of that there's no other explanation other than individual configuration when identical phone's from the factory get such different results.
I don't participate in battery threads because they're pointless. Dozens of different people using the phone differently with different apps and settings on different carriers all talk in circles when there's no common basis for a legitimate discussion.

I'd call 3% overnight something impressive.
I'll try it out tonight.
I'm running 2.3.3 (No updates avaliable here in Brazil) and i'm not about to root it now. I'm getting a generic 7" tablet to mess around and learn how to do it properly.
So i'll be running minimalistic UI, Snowstorm, Battery Monitor Widget Pro on the desktop, with 2 screens.
HSPA+, bluetooth and wifi disabled.
Let's see how it turns out tomorow morning.
One thing i wanted was to flash in Samsung's oficial fw for Brazil, mine's a carrier customized one, and that's sort of pissing me off since i wanted to uninstall 75% of the garbage Claro has installed here.

jwonga said:
That is a problem with the 2.3.3 firmware mate. Best switch to 2.3.4 ASAP!
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Click to collapse
I'm using 2.3.3 at the moment and don't seem to have this problem at all?
BarryH_GEG said:
I don't participate in battery threads because they're pointless. Dozens of different people using the phone differently with different apps and settings on different carriers all talk in circles when there's no common basis for a legitimate discussion.
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Click to collapse
I agree with you BarryH... having put the great battery stats in the first post, I wouldn't expect anywhere near that sort of level had I been playing with the phone or I had a thousand apps that run constantly in the background.
Having said that, it seems that there are the people who do have legitimate problems and then there are the people who simply have unrealistic expections of the battery in such a powerful phone. Kinda like buying a big truck expecting it to run on the same amount of fuel as a little car.

Unrealbr said:
I'd call 3% overnight something impressive.
I'll try it out tonight.
I'm running 2.3.3 (No updates avaliable here in Brazil) and i'm not about to root it now. I'm getting a generic 7" tablet to mess around and learn how to do it properly.
Click to expand...
Click to collapse
Let me know how you go Unreal... I saw on a thread a couple of weeks ago (not sure exactly which one now because there's so many of these "bad battery" threads) that someone had said that their phone lasted more than three days with minimal use.. and noone believed him! lol

How strange, I was about to make a similar thread. I had just gotten 3 and a half days out of my battery earlier tonight, no connection to charger since friday night. Minimal use of course, few phone calls and general tinkering, but still impressed with the standby. It was at 1% battery left so time to charge her up again. I charged my phone till the 100% alert came up, then charged it for another 45 minutes as I heard it stops it dropping immediately to 95% as some others have experienced. I've experienced similar too.
So after unplugging it, I pressed the power button to turn the screen off and haven't touched the phone till just now, about 6 and a half hours later. I pressed the power button and battery widget shows me 98% on the battery. If i was to leave the phone completely in standby and not use it, at about 1% drain per 3 and a quarter hours, that's about 13 and a half days standby!
I'm on 2.3.3 btw.

2-3% overnight drain is along the lines of what I get with KE2 and KF3. Data off, 2G. I get about 20-30% of drain a day, 30 mins usage, 30 mins talk.

I get great battery life on mine, although I have not made a valid experiment using quatitative data

Hopefully, this will be the NEW TREND for all the Android Gingerbread dual core phones.
Check this out!

Neo3D said:
Hopefully, this will be the NEW TREND for all the Android Gingerbread dual core phones.
Check this out!
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Click to collapse
We have one guy who went five days supposedly. The majority of posts in that thread are just like ours, a combination of moaning and pleased. It all comes down to how the phone is used and what's loaded on it.
Sent from my GT-I9100 using XDA Premium App

Im very happy with battery life. Froze a couple of apps and I was good to go.
First phone I've had that didn't need to.be flashed on a daily basis.
I think anyone that's needs more than a day from a single charge needs a blackberry or a home to charge daily.
Sent from my GT-I9100 using XDA App

I have owned a lot of androids and my sgs2 has the best battery life.

I guess you think it's ok, probably because coming from another android phone, it is.
For me is a pain, every half day have to think about charging, my whole usage of this phone although brilliant, has been taken over by thoughts of how I'm going to next get it charged aposed to what I want to do with my phone.
Something I didn't expect was just how much this phone discharges whilst playing music with the screen off.
Sent from my GT-I9100 using Tapatalk

Im not impressed, it just met my expectation coming from an SGS1, but the first one impressed me so ergo Im also impressed on the SGS2

I have had this phone since pretty much near release date. I have been and still am very impressed,by the battery life.
I'm currently on KG1 2.3.4, but since before this past Saturday I was always on 2.3.3 (KE2). Even on 2.3.3 with the AOS bug I was still very happy with battery life.
Now with KG2 out, I'm sure ill be even way more impressed.
I love this phone, and I have been a religous iphone user previously too!
Sent from my GT-I9100 using XDA Premium App

On my phone with 3500mAh battery. With yellow arrows, the behaivour during night.
KG1: during 4 days ( no drain at all)
KG2: during one night

I must agree, this is my 3rd Android phone (out of a total of 37 phones since 1990) and it's by far the best battery of any smart phone.
My best battery usage is 3 days 13 hours with 25% battery left. That was with wifi on all the time, over an hour of screen time (I was working at home, so no need to play with the phone) and over an hour of phone calls. I'm sure it would have reached 5 days. BTW, I'm running 5 pages of widgets, firefiles wallpaper and GMail is updating all the time.
During the 3 days time I switched off 3G as this is the biggest battery drainer I have seen. I live in a 40 floor tower which is made of thick concrete and the 3G signal in my home office is terrible, the phone is constantly hunting for 3G. When I'm at home, I don't need 3G as I'm using Wifi.

Related

Sprint Hero battery life

I'm fairly disappointed in this battery and will start gathering benchmark metrics,asking others to do the same for more data points and what does and doesnt work to increase.
Currently I have disabled sense ui and reduced widgets down to hardly anything, just a search and taskiller. I seem to get around 10 hours with moderate usage (occasional short call, several texts and quick searches, etc) letting android download background data and check google accounts email, contacts and calendar (this really is the power of the phone, cloud syncing pim). Weather, stocks and other "widgetable" apps are refreshed only on demand.
It's worse than I thought. I went less than 6 hours today with only one quick call (<1 minute) a few youtube clips and 2 texts. I noticed the phone was pretty warm in my pocket compared to my HTC touch (it actually felt cold sometimes if left on the desk) and a few times I noticed that there would be no radio "bars" but most of the time I had 3-4 out of 5 bars (I never have recetpion problems where I am) leading me to believe that something goofy is going on with the radio. I am going to reset since my testing is over today!!
katmandu421 said:
It's worse than I thought. I went less than 6 hours today with only one quick call (<1 minute) a few youtube clips and 2 texts. I noticed the phone was pretty warm in my pocket compared to my HTC touch (it actually felt cold sometimes if left on the desk) and a few times I noticed that there would be no radio "bars" but most of the time I had 3-4 out of 5 bars (I never have recetpion problems where I am) leading me to believe that something goofy is going on with the radio. I am going to reset since my testing is over today!!
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Whit what tool did you test it?
It's still to early to tell but I'm seeing decent battery life. Better than my pre but not great. Certainly acceptable considering I'm playing with it all the time since its new.
i also am seeing bad battery life.. i had court yesterday, and had it OFF most of the day.. and it was dead last night, i turned it on after court.
anyone notice this:
the website has extra batteries
http://nextelonline.nextel.com/NASA...oryID=BSH5110&topPageNumber=0&subPageNumber=0
they say 1340mAh. mine says 1500mAh
do you guys think thats a mistake?
xmoo said:
Whit what tool did you test it?
Click to expand...
Click to collapse
I just looked at battery usage in Spare Parts at various parts of the day and input this manually to minitab. No special app or anything.
slackwaresupport said:
anyone notice this:
the website has extra batteries
http://nextelonline.nextel.com/NASA...oryID=BSH5110&topPageNumber=0&subPageNumber=0
they say 1340mAh. mine says 1500mAh
do you guys think thats a mistake?
Click to expand...
Click to collapse
I read that the European version has a small battery, but because it is GSM is supposed to have as good or better battery life than the CDMA version.
The GSM Hero has a 1350mAh battery, and battery life is reportedly slightly better than the Sprint Hero even with its more capacious battery. As you correctly surmise, this is due to the Sprint being a CDMA network.
Why Sprint would want to sell a lower capacity battery though, I've no idea!
Regards,
Dave
my battery didn't last a full day either
I am into my 3rd day of usage (on single charge) on my week old hero.
Running on 2G network, turning off all data connectivity, manual reduce screen brightness, minimum vibrate and sound notifications for typing and applications
I have a Sprint Hero and the battery is at half strength not too long after lunch. But since I've only had the phone 3 days, I probably am playing with it more than usual. I'm guessing Seido will come out with an extended life, same size battery. They did with my Touch and it was great! It was very handy having a spare battery when I was out for a long period of time, away from anywhere to charge the phone.
Im also into my 3rd day of usage, and been off the charger all day today... had a couple calls, couple texts, bout 3hrs worth of browsing/facebook/twitter... down to about 60% as we speak so i know its a vast improvement from my tp... hell, 2 hrs of anything on that phone and it would be below 50 percent before the day even really started lol...
There are a number of things you can do to help improve battery life.
1 ) Turn off Wifi autodiscovery. You can always turn it on again if you are at a spot where you know you have a good wifi connection and plan on using it. My Hero was constantly telling me about wifi hotspots that I was driving past. I've found a number of widgets that will turn wifi on with one push.
2 ) Set Twitter, Facebook, and or email to check for updates less often than stock. I don't remember exactly what mine was set to at the beginning, but one of the first things I did was set Twitter to every four hours and Facebook to every two hours.
3 ) GPS is also a battery eater. Turn it off unless you need it.
4 ) Whenever you get a new phone, you ( well, I do, I'm just assuming that you do, too. ) use the heck out of it, playing with settings, seeing what all the programs do, downloading apps and games. Battery life should pick up as the newness wears off.
If you guys want a little more juice, Seidio just came out with a 1750mAh battery that fits in your device's existing battery space and doesn't require a replacement door.
http://www.seidioonline.com/product-p/basi17htp2.htm
Problem is, whats the point of having a phone designed to have al lthese features if you can't use them as the battery just dies.
My T-Mobile G2 / Hero dies so quick it's annoying.
Yes I've been doing lots of stuff with it this week but to have to turn of 3G to save battery is a laugh. My old Sony phone uses 3G etc and it can last a good two days without charge.
I've kept my 3G on but have kept all the updates to minimum amounts or to be done manually.
Background data also turned off most of the time but again, if it's required, then we shouldn't have to turn off.
It's about time batteries were developed or the companies actually provide longer life ones.
All the testers reviewes keep going on about how great the battery life is doing all these things and stuff, what batteries have they been given to use compared to the rest of us I wonder?

[Q] Is the TB battery life as bad as it seems?

I just bought a Droid X2, but have decided to take it back for an LTE phone before the change in unlimited data.
I really don't like the way the charge looks, but it seems to be just as good as the TB. The TB has the likely potential to have a better community and better roms.
However I cannot have a phone that cant hold a charge for a whole day. And I do keep my phones for the 2 year duration of the contract, so whatever I get I need to be happy with.
I get the idea that the TB lasts between 4 and 8 hours. Is this a hardware issue, or is it the ROM which would be fixed as time progresses?
It is pretty bad. If you live in a 4G area, you should get the extended battery.
There are some settings tweaks, especially in the stock ROM, that help tremendously. The notification/background data is what kills the battery.
I always get at least 8 hrs with normal to heavy use.
But if your streaming video constantly, yeah like 4 hrs.
Most I have seen is around 20 hrs.
Seems like it always dies with about 4 hours of awake time or actual usage.
In a 4G area. And I think it will get better with hopefully a new OTA.
Sent from my ADR6400L using XDA App
If you are going to play with ROM's, standard battery life is real bad. I loose about 25% of the battery, 4G downloading, then flashing 1 ROM!
Add 2 hours worth of on anf off fiddling with the screens and setups takes it down to 40% remaining, then I have to turn off wifi, and 4G to get through the workday, ending <10%. If I do 2 ROM's, i'm dead before lunch. Gotta get a cable for work.
Get the extended battery. Mine lasts typically a day and a half with it, moderate usage. Awesome phone.
Sent from my ADR6400L using XDA App
I can get a full day out of my phone with moderate use (texting, calls, web browsing). I have my settings tweaked and have juice defender running which really helps. I'm on stock ROM and am not rooted, there is a lot you can do to improve the battery.
Well if you use your phone as much as I do then you would be surprised how quickly the Barry drains out haha
Sent from my TB yo.
Mine is usually 60-85% display, and I have it on dead minimum brightness unless I'm outside in the sun, in which case I set it to auto for a few minutes. Mind you, that's maybe five or ten minutes max of screen on time, two or three times a week. On the other hand, a twenty or thirty minute phone call can take ten percent off; I'm one of the people who sometimes remembers that it can make calls, too, so my experience is probably a bit off. I also have most everything set to sync every 2 hours, but I have imo.im running constantly.
If I'm using it pretty heavily, it may be down to 40-60% on the standard battery by lunch, which would be about three or four hours of screen on time. I'm in a 3G area, btw. I just carry a charger; which has the advantage of making other microUSB people happy when their phones die (and we can mock the iPeople with proprietary chargers). Yes, the battery sucks, but every phone has trade-offs.
If you won't have any way to charge the phone (car, wall, etc) during the day, then I don't think you will be happy with the phone. Between my wall charger (or USB cable), car charger, and two batteries (spare is the Seidio 1600 mAh), I'm satisfied.
As for the Droid Charge, the Touchwiz UI compared to Sense is a non-starter.
Is it bad? Yeah, seems like. Is it as bad as everyone is making it out to be? I dunno. I remember a lot of people complaining about the battery when I got the Incredible. With light use (about an hour of internet and email over 3G, one or two half hour calls, and a handful of texts), I'd charge it every other night (and have 30% or so when it went on the charger).
I picked up the Thunderbolt yesterday and charged it overnight. It came off the charger at 7:30 this morning, and I'm showing 54% as I'm typing this at 8:45pm. Since it's new, I was probably fiddling with it more than usual (but not a ton more, as the differences between the Thunderbolt and the Incredible aren't huge).
So with 4G on, yeah, it runs it's battery down faster than my old Incredible. But it seems like I can make it through a day without much difficulty.
EDIT: I figure I might as well mention my settings.
I have the brightness set to about 30%. I shut off any and all vibration. Screen timeout is 1 minute, volume is maxed for everything. Bluetooth and GPS are off (unless I need them). The weather widget updates every three hours. I don't use any other widgets that use data (just a volume profile and a power control widget). The phone can do background sync for my contacts, but my gmail, other mail, and Twitter (Seesmic) are all set to update manually.
I'm getting about 8 hours of moderate usage here as well. I've come to terms with the fact that using a device that is more powerful than my netbook will come with some battery trade-offs.
hey guys,
I'm going to follow this thread for a bit. My HD2 jumped into the Harbor yesterday and will probably be switching to Verizon for my next phone. I'd really like to get the TB, but am really concerned about battery life.
It sounds like people are getting a battery life similar to what I was getting running Gingerbread off the SD card on my HD2...which didn't quite cut it for me on days I was working in the field and not able to charge. But at least with the HD2 I could run WinMo on days like that and not have worry.
Keep the info coming!
thanks
setting tweaks
Headshots4life said:
I can get a full day out of my phone with moderate use (texting, calls, web browsing). I have my settings tweaked and have juice defender running which really helps. I'm on stock ROM and am not rooted, there is a lot you can do to improve the battery.
Click to expand...
Click to collapse
Hello, im currently running with juice defender, but i was wondering if you could help me with what all settings i should tweak to help the battery?
After applying the MR1 OTA update I still wasn't happy with my battery or GPS performance, especially compared to my past phones (Incredible, X, original droid, blackberries, etc)...
After doing a wipe and reloading the apps I use by hand, I have seen battery life match the Inc in 3g only areas, and GPS lock on my location consistently in under 7 seconds.
In mixed 3g/4g areas (where I live), similar results. Battery life and GPS lock are very much improved. And the TB now makes it through the day for me.
In solid 4g areas, well, last night I was surfing the web, reading, looking to see if the GB update for the X had hit. I went to bed around 1 am with 80% battery, didn't hook to charger. This morning at 9 when I looked it had received some emails and auto updated some apps.. battery was at 55% so that is better.
It's still not as good as my droid x, but the TB is certainly more usable than when I first got it a month and a half or two months ago.
The t-bolt is better than my inc was, with bams GB rom I got 12 hours of heavy use with stock battery....my 2 cents...
I just tested my battery life. It was about 2 hours with Carl pagan cosmos on 2g. 4g really eats the battery. After I recharge, I'm going try it over 3g and see if that makes any huge differences.
Sent from my ADR6400L using XDA App

Side by Side battery comparison - CleanRom 1.6.5 SP1

First of all, let me say thanks to Scott for all of his work on CleanRom. I know there has been a lot of discussion lately in his thread about battery usage. Some people are getting outstanding battery life and some people can't make it more than a few hours. I have been one of the people that can't make it more than a few hours no matter what I do. I did a clean wipe of everything before installing the ROM and have even tried to reinstall. The odd thing is my wife's phone does fantastic with this ROM. I finally decided to test things side by side lastnight. My phone should have had the clear advantage because I turned off all syncing options and froze any apps that had been downloaded just to make sure there was nothing running. Meanwhile, her phone syncs like crazy to facebook, email, etc and also has various apps running like weatherbug. I let them both sit overnight and after ~9hrs here are the stats I measured:
Battery % left : 79% (mine) vs 88% (hers)
Data used overnight: 75kb (mine) vs 744kb (hers)
Time awake: 3min 32sec (mine) vs 9 min 42sec (hers)
Time in Deep Sleep: 9hr 19mins (mine) vs 9hr 6min (hers)
Everything points to the fact that I should easily have more life left than hers. I am also attaching a couple of screenshots and the betterbatterystats files to this post. Maybe we can track down why everyone's battery life is so different. Tonight I plan to swap batterys between the phones to try to determine if my battery is the problem.
wow that's pretty good on your wife's phone but horrible for yours especially considering you turned off syncing.
I agree. I have no doubt that her phone could easily still be at 95% or more if I made all of the same adjustments to hers as I did to mine. That is why I am hoping someone on here with more knowledge about this stuff can help to determine what is going on.
It honestly might just be a faulty battery, I was having similar results with mine and my friend's phone, too. I tried multiple ROMs, Kernels, etc. But it slowly got worse and worse to the point that I would go down from 100% to 60% in little over an hour, doing nothing but listening to music with the screen off and auto-sync etc off. I bought a replacement battery, though. And this one is working just fine. You might just be having bad battery luck, or it might be your device, I know some people have returned their Rezounds because of battery life/heat problems, and the replacement generally fixes their woes.
so what did your betterybattery stats report?
Thanks for running this test. It would be very helpful to everyone if you could pinpoint this to a battery difference and I'm waiting to hear your results after the battery swap.
What helped my battery life most was to uncheck the box under "settings -> applications -> start automatically" It has something to do with a task manager. It probably wouldn't explain why your wife's phone does better but it could help both of you get better battery life.
bik- The betterbatterystats file is attached. I see a lot of activity on her phone but very little for mine. The only thing that stands out to me is I have alarmmanager waking my phone for 10 mins and she had it waking hers for only 5 mins. I am not sure exactly what alarmmanager is though.
HTGaming- Thank you for the suggestion but I have already done that as well. I think I have literally turned off everything possible on this phone because it is driving me nuts to burn through battery like this. My OG droid used to us 30% in a day max and now I burn through that in an hour if I am using the phone for anything at all. Pretty much the only thing I had running on the phone lastnight was 4g service which her phone also had.
Another thing you can do to compare the two phones is to install battery monitor widget to see what the drain is on the phones. I used to have decent battery life but ever since the update, it's been worse. The one thing I noticed is that now my phone draws more current when sleeping than it used to. The drain is consistently close to 300ma, whereas before it would be less than 200ma when sleeping.
You have to have the widget on for the monitoring to be active unless you change the preferences.
I swapped the battery's lastnight and here's the results. Hers is still clearly better than mine even though betterbatterystats shows way more activity on her phone again.
Battery % left : 84% (mine) vs 90% (hers)
Data used overnight: 279kb (mine) vs 498kb (hers)
Time awake: 5min 32sec (mine) vs 12 min 8sec (hers)
Time in Deep Sleep: 7hr 58mins (mine) vs 7hr 59min (hers)
Someone posted that they saw different PRIs on phones even after the OTA. Do your two phones have the same PRIs?
damnn thats just weird
Im starting to think that some Rezound batches are differently tweaked than others. My first Rezound had great battery, I would stream music for 5-6 hours on 4G and would still be above 60%. My last two however were completely horrible, on 4-5 hours standby it losses closed to 20% with lil to no use. Same settings/apps as my first Rez. I regret returning my first Rezound, it truly was the perfect phone.
There really has to be a reason why some come with a 3.8 V bat. opposed to a 3.7 V. HTC wouldn't just send out two different types of battery for no reason.
You are missing 1 key info in your analysis, which people always seem to leave out when talking about battery life. The screen on time. I see in in the graphs but it's hard to tell the exact number. Because of the 720p screen on our phones, that makes a big difference. When my screen is on, the phone uses up at least 600 ma/hr. That is conservative, usually it is more like 700-800. We'll assume 600 for now. That's 10 ma/minute. Based on the stock battery, that is 0.6% per minute. So having a difference in screen on time of 10 minutes will give you 6% difference in battery life.
i am also unable to go for even most of a day on one battery charge - and i have 3 extra batteries that were from ebay that dont work even that long...
i do notice it when the screen is on the most - yest i used the gps for an hour and a hlaf without plugging the phone in and my battery lasted about 3 hours after that and died....
very bad....
very interested to see if its the phone or not - great work...
I'll try to answer a couple of questions in here. I got very frustrated yesterday so I flashed an ICS rom to see how my phone did with it. It is equally as bad. This morning, I got into work with 97% life, checked my email for about 2 mins and was already down to 90%. I have the screen display set to 30% brightness too. I am amazed that people can used 2-3 hours of display and still have 70% battery after 10 hours. My screen at 30% brightness probably drains 2% per minute. I think tonight I am going to try to install one of the stock RUU's just to check and see if the OTA upgrade possibly didn't install itself correctly.
HTGaming - I will check the PRI's tonight.
Bluesnake - Both phones were purchased the same day so I would guess they are from similar if not the same batch. Both have 3.7 batteries. Infact when I first got my phone, I could have display on auto, sync everything every half hour, use the screen for random browsing throughout the day and still go home with over 70% left. Somewhere along the line my phone has developed some sort of draining problem though and no amounts of clean installs seem to fix it.
b5fan - Both phones were off the entire night. I think screen usage was maybe 10 seconds for both of them. They literally just sat there on the nightstand while we slept and mine drained 2x faster with nothing running while hers ran facebook, email etc.
I checked the PRI on both phones and they are the same. I re-ran the stock RUU tonight so I will see if that makes any difference. I highly doubt it will but I am running out of ideas.
I guess I was thrown by the screen shots. They both show some noticeable screen time.
the only other thing I could think to check is the email type, push versus pull, and the frequency.
Sent from my ADR6425LVW using Tapatalk
b5fan said:
I guess I was thrown by the screen shots. They both show some noticeable screen time.
the only other thing I could think to check is the email type, push versus pull, and the frequency.
Sent from my ADR6425LVW using Tapatalk
Click to expand...
Click to collapse
The screen time was probably just from me getting all of the data off in the morning like the screenshots and battery stats. Her email was on push and my email was set to not sync at all. Basically she had a fully functional phone and mine was set to do nothing which is why the battery drain is so hard to explain.
I did run the stock RUU image lastnight for my phone. I put it in airplane mode overnight and it was at 97% when I got up which is a huge improvement. I took it off airplane mode at 6am today and when I got to work at 7am, it was down to 90% so I guess I am in wait and see mode now. I have no email accounts/facebook accounts/ or anything else setup right now. It is only the stock image so there should be nothing draining battery today.
I can confirm the phone is no better now after the clean RUU install. Let it sit overnight and it was down to 80% this morning. I did not even setup any email accounts or download any apps yet. This is just the stock image from verizon.

Batterylife comparison: Stock VS CM9 VS CM10

Hi all
This is my first post, so let's hope I've gotten it right and am abiding by all the rules and the n00b video. And yes I did search for a good 10 minutes about batterylife and battery before posting and didn't find anything relevant.
I've recently swapped over from Apple iPhone and I'm now very much enjoying being on Android. However batterylife is a big concern for me, as on iPhone I could go 2-3 days without charging and now I can barely make it home from work and I definately have to plug it in before dinner. And yes this is with me closing down applications, wifi when not used, bluetooth when not used, running latest kies released PHONE:LFB firmware and so on.
So my question is... how is your batterylife after having rooted and installed a custom rom? The one I'm thinking mostly about using is definately the new Preview 3 (or perhaps wait for 4 or 5) of CM10, that XpLoDWilD is working on. Does anyone have any experience with the batterylife before and after?
Thanks a lot for any help you can provide! :highfive:
Casper[DK] said:
Hi all
This is my first post, so let's hope I've gotten it right and am abiding by all the rules and the n00b video. And yes I did search for a good 10 minutes about batterylife and battery before posting and didn't find anything relevant.
I've recently swapped over from Apple iPhone and I'm now very much enjoying being on Android. However batterylife is a big concern for me, as on iPhone I could go 2-3 days without charging and now I can barely make it home from work and I definately have to plug it in before dinner. And yes this is with me closing down applications, wifi when not used, bluetooth when not used, running latest kies released PHONE:LFB firmware and so on.
So my question is... how is your batterylife after having rooted and installed a custom rom? The one I'm thinking mostly about using is definately the new Preview 3 (or perhaps wait for 4 or 5) of CM10, that XpLoDWilD is working on. Does anyone have any experience with the batterylife before and after?
Thanks a lot for any help you can provide! :highfive:
Click to expand...
Click to collapse
That's very weird. Are you international or a US S3? I easily get 3 days battery, very easily. Perhaps try turning off useless stuff like bluetooth, gps, wifi, etc when you're not using them. Turn off push email and other useless crap. See how it goes then?
I still have the stock ROM, usually 3.5 days battery before it gets to 10% and i charge. I'm going to go to OMEGA rom soon though.
I have tried almost all custom roms out there. And I can easily say the battery life is not any better if not worse on custom roms.
Stick with the stock rom. I would however recommend flashing a custom kernel like speedmod or phenomenal. They definitely give you that extra juice you need at the end of the day. The idle time and screen time has increased for me 10 to 20 % compared to stock.
Sent from my GT-I9300 using xda app-developers app
danben7 said:
That's very weird. Are you international or a US S3? I easily get 3 days battery, very easily. Perhaps try turning off useless stuff like bluetooth, gps, wifi, etc when you're not using them. Turn off push email and other useless crap. See how it goes then?
I still have the stock ROM, usually 3.5 days battery before it gets to 10% and i charge. I'm going to go to OMEGA rom soon though.
Click to expand...
Click to collapse
I'm using the international version. I did turn off bluetooth and wifi, but not gps. Will try that aswell. I have manuel mail check every 1 hour, but will try to set it to 4 hours.
However from what I read in the reviews on GSMarena and other sites, it's quite normal to only get 1 day worth of battery.
Description of a pretty basic day with the Galaxy S3:
I usually unplug mine at 6 am, with wifi and bluetooth off and screen always on auto brigthness. Then at 7 am i turn on bluetooth for my earphones and bike to the train station and browse the web and such for about 45 minutes in the train. When I arrive at work it's usually around 80% battery and I turn off bluetooth. Then I'm at work from 8 am to 4 pm and check mails, texts, calendar and possibly make 1 or 2 short phone calls. At 4 pm I think the battery is often around 40-50%. Then again on the ride home I use the same, so it's usually around 20-30% when I come home. I then usually turn on wifi and play a couple of games, or watch some Netflix on it while I'm doing some other stuff or attach it to my stereo and play so music from Spotify on it. At 6-7 pm it's usually beeping at the 5, 10 or 15% marker for more power and wants me to plug it in to a power source. If I try to wait till I go to bed, I usually end up having it automatically shut down from lack of power.
I'm wondering if this seems normal or if perhaps my battery is faulty. From the review at GSMarena it seems quite normal and that's just the way Android is. They even gave it a good battery rating inspite of saying that it would only last them a day.
uronfire said:
I have tried almost all custom roms out there. And I can easily say the battery life is not any better if not worse on custom roms.
Stick with the stock rom. I would however recommend flashing a custom kernel like speedmod or phenomenal. They definitely give you that extra juice you need at the end of the day. The idle time and screen time has increased for me 10 to 20 % compared to stock.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Okay, thank you for your reply
it all depends on the usage i have an iphone 4 as well and i have to charge it by the end of the day (at 10pm). So it dpends on what you do with your phone if you use 3g all the time thats not gonna last long if you have syncing on all the time and gps that wont help...if you just let it idle then you can get 3 days uptime with maybe 1 hour screen time.
Casper[DK] said:
I'm using the international version. I did turn off bluetooth and wifi, but not gps. Will try that aswell. I have manuel mail check every 1 hour, but will try to set it to 4 hours.
However from what I read in the reviews on GSMarena and other sites, it's quite normal to only get 1 day worth of battery.
Description of a pretty basic day with the Galaxy S3:
I usually unplug mine at 6 am, with wifi and bluetooth off and screen always on auto brigthness. Then at 7 am i turn on bluetooth for my earphones and bike to the train station and browse the web and such for about 45 minutes in the train. When I arrive at work it's usually around 80% battery and I turn off bluetooth. Then I'm at work from 8 am to 4 pm and check mails, texts, calendar and possibly make 1 or 2 short phone calls. At 4 pm I think the battery is often around 40-50%. Then again on the ride home I use the same, so it's usually around 20-30% when I come home. I then usually turn on wifi and play a couple of games, or watch some Netflix on it while I'm doing some other stuff or attach it to my stereo and play so music from Spotify on it. At 6-7 pm it's usually beeping at the 5, 10 or 15% marker for more power and wants me to plug it in to a power source. If I try to wait till I go to bed, I usually end up having it automatically shut down from lack of power.
I'm wondering if this seems normal or if perhaps my battery is faulty. From the review at GSMarena it seems quite normal and that's just the way Android is. They even gave it a good battery rating inspite of saying that it would only last them a day.
Click to expand...
Click to collapse
My basic day is charge the phone at around 8pm, unplug at 10pm. I never charge overnight it's pointless (not that i think it'll hurt it). Wake up battery is usually around 95% after my alarm goes off. Brightness is about 60%. I don't browse the web very much, and I don't play many games, let's say 1 hour of web and 1 hour of games/videos/music per day. Maybe 1 hour of maps too. Mostly though, I text message and phone call.
I don't think yours is faulty, i think it's quite normal, it seems like you're a heavy user, I'm a light user. If I used my phone as heavily as you did i'd be happy with 1 day of battery.
One day of charge (the battery being at 20-40% at the end of the day depending on the usage) is quite normal.
I've found CM9 with Siyah to give the best standby battery (1-2% drain per hour with 3G and Sync enabled) since it's very lightweight and has no battery-draining bloatware other than what you install.
CM10 is still too new and unfinished to be battery-friendly, it's not that bad though.
However sometimes it will chew the battery for no freaking reason (at least I cannot found any) and the CM9/CM10 stock kernel is not that battery-friendly on active usage. No Siyah yet =(
d4fseeker said:
best standby battery (1-2% drain per hour with 3G and Sync enabled) (
Click to expand...
Click to collapse
No way is that good man, that means that if you leave it on standby alone you lose 25% per day. 0.5% per hour would be good/normal IMO.

Crazy Battery Life on 920

The first week I had my 920 I was lucky if the battery was at or above 40% by 12 noon. The 920 is my 2nd phone line and I am using it mostly to learn WP8, to surf the web some and listen to a lot of podcasts, usually 6+ hours of them a day. The past 4 days the battery in the 920 is showing insane runtimes. It is currently 11:30pm and it has been off the charger since 8:00am, over 15 hours with overs 8 hours of audio podcast listening. The battery is currently reading 61%. I originally got the impression that LTE was killing the battery, but that is no longer the case.
I have a Share Plan with AT&T with 2 phones, a Galaxy Nexus (GSM model from Play Store) and a Lumia 920. I use my Nexus as my main phone line, to access GMail and Google Reader (a lot of Google Reader feeds). The Nexus has been off the charger the same period of time and is showing 41%.
For me wifi destroys my battery for some reason I get 15 hours with wi-fi on or 28 with it off
Interesting, mine will usually run for 24-30 hours before hitting 15%, including regular usage. 4G gives it a whack but generally I find similar to other phones, if low coverage it chews the battery
Reading all the doom and gloom of 4G LTE on various mobile phones, after my 1st weeks experience, I was expecting similar results going forward. But, after 2 weeks of use, the battery falls in line with the results you mention. And, with that I am not complaining.
same situation here.
It looks like the phone needs some days to warm up and get long lasting.
Also I see that wp8 is heavly optimized for background task in order to not consume a lot of battery eg: my phone lasts more than 2 days with light usage.
I listen to podcast for many hours and it doesnt affect the battery that much, in fact I'm surprised by it because I know audio playing takes a load on the cpu.
Mine.. overnight without charge or using the phone it drained from 100% down to 35%. BS
Two words: Background tasks.
Make sure you don't have unnecessary background tasks running. I have less than 5 and my battery runs more than 2 days easily.
How do you kill or monitor background tasks?
I had really good battery time of 19 hours the first day of installing the new firmware, then I enabled bluetooth again and it drains like crazy. its hit or miss but people seem to think that whatsapp drains battery. I personally would like to disable LTE (its really slow in my area) and just keep bluetooth that seems to give me 12+ hrs of battery.
randy_c said:
How do you kill or monitor background tasks?
Click to expand...
Click to collapse
You can block background tasks for 3rd party apps in Settings->Applications tab->Background tasks. There is no way to monitor these tasks because WP OS doesn't offer any such capability.
Unfortunately there is no easy way to block 1st party apps and if they are misbehaving (like sync something over and over), there is nothing you can do about it.
Turn on Battery Saver can also effectively kill all background tasks. But that's draconian. I still would like my smartphone do something in the background for me.
Don't forget, the biggest battery drain factor could be your cell phone signal. If you keep the phone in a fringe area, the cell radio will drain your battery very quickly while try to maintain communications with cell towers. This is outside the OS and you can't do anything about it.
I had a weird battery drain the day after the last upgrade. No apps running in the background BAR the movie that i had paused.. I lost 80% without using the phone in a 6 hour period (post charging). After a reboot it seems ok. Perhaps i should pause another movie to see if it happens again....
I must say that I have mine 2 days and the battery drains too fast... I dont know what to do .. Maybe because its new ? Some one can help me maybe ?
rotter123 said:
I must say that I have mine 2 days and the battery drains too fast... I dont know what to do .. Maybe because its new ? Some one can help me maybe ?
Click to expand...
Click to collapse
don't judge a phone's battery life until a week later.
foxbat121 said:
don't judge a phone's battery life until a week later.
Click to expand...
Click to collapse
in wp8 is 2 weeks later
My battery is pretty inconsistent. MOST of the time it's awesome, and will last like 20-25 hours without needing to charge, but that just makes it especially jarring when every now and then I go to check my phone at 4 in the afternoon and it's at critical, and I have no idea what causes it.
Plus when it does die I have to put it on the charger for like 2 hours before it will let me turn it on.
I found interesting point in the battery life today, if the screen is off, the battery drain is in the range of 3-4% which is good, however, if the screen goes on the battery drops like 15% in just 25 minutes. After thinking I tried to set the screen sensitivity to normal and it solved my problem. I kept the screen on for more than 45 minutes and the battery went down almost 6% only which is good. I still have to test more to give a concrete evidence.
Sent from my LT15i using xda app-developers app
I usually run a battery discharge app Saturday night. Then a full recharge with the phone off. That usually gives me dependable battery life of about 12 hours a day for the entire week. If I forget and not run the discharger I notice it midways into the week when I only get about 8 hours out of it.
AT&T lumia920:
after updating my phone to the 1314 update, my battery life got worse.
I went from 14 hours per day to only 8 hours.
thanks nokia -_-
note: I was not experiencing any connectivity issues on my phone.
let's see how many people here actually have NFC on and Auto-Brightness on... lol
I used the sleep app last night after charging to 100%, and then I fell asleep with it on.
I woke up to find the sounds still going, and when I checked my phone worried that I killed the charge, I found it still had 92% left. That's impressive.

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