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I now have one week to the Nexus One bought secondhand. It suits me perfectly stand alone I have a little trouble with the battery life of the phone. Morning when the phone is 100% and I come out of school (14:30 hours) the battery is still around 20%. I find this a bit short. Ok, I'll use him at school (bit Internet, twitter refreshes every 9 minutes)
There is an automatic task killer, and that helps a bit but I think there are about 80% after 8 hours battery life is a bit much. Me internet is also constantly and I really like to keep.
The battery is probably not because I've got 2 batteries and they both give the same result.
Anyone have any idea what I can do?
I've been a bit inet searched but not really found anything. I did see somewhere a separate battery behind the phone, but I'm not waiting because that makes him a bit heavier and uglier.
10% per hour is pretty poor battery life. Are you running stock Android? 3rd party firmwares can give you much better battery life (the latest versions of CyanogenMod are using less than 1% per hour when fully idle).
But there are things you can check. Have you looked in Settings -> About phone -> Battery usage? If you are using Gingerbread and you look at the graph, if there is a solid line (or mostly solid) next to the "awake" portion, it means that your phone isn't properly entering its low powered state. Download spare parts from the market and check out partial wake usage under the battery history section of that app.
Please post your screen on time value from the battery menu so we can see how long your screen is on.
I would say to go and disable background data. Disabling this will definitely improve your battery life. Of course, you aren't going to get you twitter updates but aside from that, the battery life should improve.
Sent from my Nexus One using XDA Premium App
FLAC Vest said:
I would say to go and disable background data. Disabling this will definitely improve your battery life. Of course, you aren't going to get you twitter updates but aside from that, the battery life should improve.
Sent from my Nexus One using XDA Premium App
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Click to collapse
While it is true that battery life would improve if Background Data was disabled (or limited via a program like Juice Defender), it doesn't take into account his actual problem. Unless it is a ton of apps constantly downloading that is keeping his battery usage in the toilet, this will only yield a slight improvement. I believe the cause is is an app (or apps) that prevent his phone from entering the low powered sleep state.
I don't know what stock Android gets from completely idle use (haven't run it since July last year), but a basic CyanogenMod install would sip between 1-2% per hour with the latest stable and the latest nightlies, some are reporting 1% every 2-3 hours when the phone is left alone (due to a fix that lets the microphones go into a deep sleep state).
Twitter refreshing every 9 minutes can not be helping, that said I doubt that's your entire issue but reducing the refresh rate should help quite a bit.
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Estimated Prophet Hawk said:
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
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Click to collapse
The battery app in my sig is the only one that reads the chip inside your battery to tell if it's legit or not, what the battery age is, etc. Needs root to work though.
Estimated Prophet Hawk said:
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
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Click to collapse
You can also get Battery Left from the Marketplace and when it gets calibrated it gives you a time until death number and some other features.
Sent from my Nexus One using XDA Premium App
Start by getting rid of the task killer.
Sent from my Nexus One using XDA App
There you have it, in the title. Google engineer Dianne Hackborn, who has previously explained Android’s hardware acceleration, took to Google+ again to clarify some myths about the Android operating system. This time, it’s a point of common advice that you’ll see in virtually every FAQ thread about custom ROMs and flashing: wiping battery stats in order to improve battery life.
The reasoning behind that piece of advice was something like this: If you, at some point, did not charge your Android device fully (for example, only to 80%), it would supposedly remember that battery level as “fully charged” – in this case, you’d only ever get to use 80% of your battery, which is of course less than optimal. So, if you wipe the battery stats, usually done in ClockWord Mod Recovery, the device would “forget” the previous level, here 80%, and instead charge to the full 100% once again, thereby re-calibrating the battery. Or, as Hackborn puts it in more technical terms:
"The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory."
However, as she explains, that’s not the case. Because those battery stats, stored in the batterystats.bin file, are only used to maintain information about what is using the battery when not recharging. That is, it essentially holds the information displayed in the Settings > Battery screen. Nothing more, nothing less. Thus:
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
What’s more, you’ve probably noticed that the battery usage data is reset once you recharge your device anyway. From this you can correctly deduce that the battery stats are wiped as well – every time your device is recharged. More or less every day. If there was any effect, you would’ve noticed it without going into recovery and doing that stuff. Typical placebo, eh?
Original Article here:
[MYTH] Wiping batt stats helps save battery life
Just because it makes sense, and comes from someone who should know, do you think we are going to believe it? =P
Just kidding. Thanks again!
Interesting, so why is it when I flash something and let's say my bat is @ 20% but after rebooting I'm down to 4%
Doesn't do that all the time but it is odd.
Sent from my VS910 4G using Tapatalk
I saw that behavior on my previous Revo. Sounds like a good question to ask her.
I stopped "calibrating" the battery since that previous phone and have had no problems. Reading mtm say that he never calibrates with all he does with his phone, I am on that boat. Reading the quotes above is reassuring.
Sent from my VS910 4G using Tapatalk
KaneOfMars said:
Interesting, so why is it when I flash something and let's say my bat is @ 20% but after rebooting I'm down to 4%
Doesn't do that all the time but it is odd.
Sent from my VS910 4G using Tapatalk
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I've had this too not sure what it is.
I had that same problem Kane. More than once
I've been Supercharged and Gingervolted!
RootedUser said:
I had that same problem Kane. More than once
I've been Supercharged and Gingervolted!
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I have too and that's the whole reason I calibrate is because I thought it would give me more accurate readings. Plus, maybe I'm losing it, but I always feel like I get better battery life in the middle of the calibration process.
But after reading this, maybe I am crazy lol
Sent from my VS910 4G using XDA App
I calibrated aswell but, it still did same ****
I've been Supercharged and Gingervolted!
RootedUser said:
I calibrated aswell but, it still did same ****
I've been Supercharged and Gingervolted!
Click to expand...
Click to collapse
yea I have heard that calibrating doesn't do anything but never had legit confirmation till now
KaneOfMars said:
Interesting, so why is it when I flash something and let's say my bat is @ 20% but after rebooting I'm down to 4%
Doesn't do that all the time but it is odd.
Sent from my VS910 4G using Tapatalk
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Click to collapse
It's a volts/amps thing. The lower your battery is, the faster it will drain. Rebooting your phone takes a lot more energy for all the necessary operations during a boot up. Without going into detail, the amperage will pull voltage down faster on a curve as the battery level gets lower, just as it does when charging.
When charging, batteries will not only appear to charge faster for the first 40-50%, but they are because the charge voltage is much higher than the battery voltage, giving more force of energy movement. As the battery voltage increases, that force is less, therefore taking longer to push amps into the battery.
The reverse is in effect on draining. I would safely say that you likely wouldn't see that much of a percentage of change for a reboot when your battery was fully, or near full charged.
Hope that helps... I also see a major percentage drop when rebooting my phone with a battery at less than 40% charge left in it. If the battery is mostly charged, I don't notice much more than a percent or two drop.
If this isn't helpful enough and need a better explanation, just let me know and I will try to explain it better. It's just basic electricity 101.
-Cybie
@ cybie
Thanks for that bit of info, your explanation was very clear
Sent from my VS910 4G using Tapatalk
the battery drop seems to happen quite often when you flash a ROM mostly I have a question might sound dumb but since the phone is on and all systems are being active wouldnt that use more of your battery life
Damn you Hicks... next you are going to tell me unicorns aren't real.
Yesterday I was at 25% I reboot, and it warned me that I was at 15% upon starting up. I don't think it has anything to do with anything. The phone ran as though the life was still at 25% (an hour or so with heavy-ish usage.) If I have done a lot of rom-ing and theme-ing I will recalibrate (just as a reassurance to myself) I am sure it makes no difference, but it puts me at ease, and really being self centered... isn't that what life is all about?
Poor communication between the battery stat program, and the display program, could this be the thing that is driving everyone nuts? Maybe the two programs need a class to express their feelings better.
markapowell said:
Damn you Hicks... next you are going to tell me unicorns aren't real.
Yesterday I was at 25% I reboot, and it warned me that I was at 15% upon starting up. I don't think it has anything to do with anything. The phone ran as though the life was still at 25% (an hour or so with heavy-ish usage.) If I have done a lot of rom-ing and theme-ing I will recalibrate (just as a reassurance to myself) I am sure it makes no difference, but it puts me at ease, and really being self centered... isn't that what life is all about?
Poor communication between the battery stat program, and the display program, could this be the thing that is driving everyone nuts? Maybe the two programs need a class to express their feelings better.
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Click to collapse
Lol sorry! I'm really not trying to be all "doom and gloom." Just thought it was an interesting find lol.
An Observation
Back in the day I had an Incredible. It was truly an incredible phone. With the exception of the battery of course. There were/are always two camps or schools of thoughts about the battery. One was that you have to "condition" your battery to get better life, the other was "F it, the battery is fine". There was also the "bump charge" mythos going around as well. I think, and this is just my opinion, this is the same thing as the wiping of battery stats every time you flash a ROM.
My experience, both on the Incredible, the Inc II, the Charge, Revo and Bionic, (some of these are my wife's phones) is that conditioning the battery, or wiping battery stats are just really, as Spc pointed out, a myth. Our batteries die faster when we flash a new ROM cuz we are playing with it more. We have a new toy again.. same with themes...or new kernels.
Every time I wipe my battery stats I end up with much worse battery life for several days.
But thank you Hicks for posting the article. Its always good to read a debunked myth!! Bravo!!
These opinions are mine and not intended to troll, or irritate or annoy people. If I do, sorry.
Not sure if anyone else has seen this....but i've found charging a little while longer after it says 100% seems to provide battery life.
If it take it off the charger right away...i get about 8-10hours. If i keep it on a few hours longer, i seem to get about 12.
I'm running at 1.2GHz...gVolt
So my revolution got the 2.1 blitzkrieg update and the http://forum.xda-developers.com/showthread.php?t=1394056&highlight=adrenaline+shot . I have the extended battery, and when I went to the gym for an hour and 30 minutes, I had 10% gone?! What is this? I thought the blitzkrieg was supposed to increase battery life?
Note: SetCPU is always at max: 1.9ghz min: 0
iamjerry123 said:
So my revolution got the 2.1 blitzkrieg update and the http://forum.xda-developers.com/showthread.php?t=1394056&highlight=adrenaline+shot . I have the extended battery, and when I went to the gym for an hour and 30 minutes, I had 10% gone?! What is this? I thought the blitzkrieg was supposed to increase battery life?
Note: SetCPU is always at max: 1.9ghz min: 0
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Click to collapse
Reinstall SetCPU, your min is off... goofy, your phone can't run at 0, then it wouldn't run. I think min is 244mhz.
The first day I had my extended battery, it drained crazy fast. Then it took hours for it to charge. Yesterday I got 13 hours off of it with very heavy use, and today 14 hours and I was at 28% when I plugged it in to charge. Give it a day after you reinstall setcpu.
markapowell said:
Reinstall SetCPU, your min is off... goofy, your phone can't run at 0, then it wouldn't run. I think min is 244mhz.
The first day I had my extended battery, it drained crazy fast. Then it took hours for it to charge. Yesterday I got 13 hours off of it with very heavy use, and today 14 hours and I was at 28% when I plugged it in to charge. Give it a day after you reinstall setcpu.
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Click to collapse
I can't reinstall SetCPU LOL... It doesn't let me uninstall it . And my bad, the min was 122880.
iamjerry123 said:
I can't reinstall SetCPU LOL... It doesn't let me uninstall it . And my bad, the min was 122880.
Click to expand...
Click to collapse
Freeze it and download cputuner? Why can't you uninstall setcpu?
menu->applications->downloaded->setcpu->uninstall
or try Gemini its a ram cleaner, and you can uninstall from there. I have never run into an issue where I couldn't remove setcpu. If that is the case then indeed you may have an issue with the setcpu program.
battery life
I seem to loose battery life quite fast I have to charge my phone at least once more during the day just to make it through. what can I do to improve this other than getting the extende battery
rocknrolla818 said:
I seem to loose battery life quite fast I have to charge my phone at least once more during the day just to make it through. what can I do to improve this other than getting the extende battery
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Click to collapse
I'm getting 10 to 12 hours with very heavy use which is pretty good for me. You can use an app like watchdog (available in Android market) it will tell you what apps are using up resources and allow you to control problem apps. JuiceDefender is highly recommended by some people. I'm not using anything like that at the moment.
My Profile
*Gingervolt 1.3
*Blitzkrieg 2.0 (Overclocked @ 1.9 most of the time)
*V6 Supercharger
Sent from my VS910 4G
markapowell said:
Freeze it and download cputuner? Why can't you uninstall setcpu?
menu->applications->downloaded->setcpu->uninstall
or try Gemini its a ram cleaner, and you can uninstall from there. I have never run into an issue where I couldn't remove setcpu. If that is the case then indeed you may have an issue with the setcpu program.
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Click to collapse
So basically, the SETPCU is the problem?
iamjerry123 said:
So basically, the SETPCU is the problem?
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Click to collapse
It could be, if you are saying you can't remove it. I would try to work on that then go from there. Can you force stop it? Clear data? Next I would get titanium backup and freeze it. Once you do that you can use tb to remove it.
Sent from my VS910 4G using xda premium
I'm running blitz 2.1 as well and I ONLY have the governor set on smoothass and I lose 10% in one hour. I'm considering restoring to pre -blitz. I love the performance even when I did overclock but the battery cost is too much.
Sent from my VS910 4G using XDA App
For the longest time I didn't do gingervolt 1.3 because it caused issues with my phone. Finally when blitz came out,I did it, but I factoried every but of my phone to do it. I suspected I was running two roms at the same time, because there were often times the phone would give me stock options for doing tasks, and ones from the ROM. Also there were certain elements left behind that should have been removed, like bing. Just take blitz off and try again.
Sent from my VS910 4G using xda premium
I've done that before. I originally installed blitz over gingervolt 1.2 and had the same problems. So I restored back to just gv 1.2, upgraded to gv 1.3 and then put blitz on. I still have poor battery life and the occasional vibrate+freeze which results in a reboot.
I can't really give up my overclock lol it runs great but makes me more dependent on my charger. I'm sure it'll get better in future releases of blitz.
Sent from my VS910 4G using XDA App
Im on gv 1.3 / blitz 2.1 @ 768 / 1900 via set cpu with supercharger + 3g turbo and ics, adrenaline shot and no verify plus some other tweaks from the tweaks list. I haven't had any reboots in a few days (even when charging) and my oem battery lasts all day with lite to moderate use. The extended battery 12+ hours with heavy usage.
The three most helpful changes for my revolution have been using blitz 2.1 and setting minimum to 768 and removing KAK from the supercharger script. After doing those things it runs smoother and I've got better battery life (go figure) I don't know how or why but of course I could be missing something.
Sent from my VS910 4G using XDA App
As is being discussed over at the bk thread, set CPU might drain battery. Not conclusive, but possible. I'm trying CPU master now to see if there's a difference for me
Sent from my VS910 4G using XDA App
I'm using CPU Master made by Antutu also, and my battery still drains however I'm not supercharged. I really should look into getting supercharged though.
The batter drain almost makes me want to look into getting the extended battery...
Has anyone had problems at all with extended battery?
Does the phone still fit in the hip holster with ext. battery?
Okay so i uninstalled SetCPU and got CPU Tuner. could it be that I never removed blitzkrieg, but instead flashed 1.0 then 2.0 then 2.1?
What can I do to better improve my battery life I have gingervolt but I seem to have terrible battery life I literally charged my phone to 100 went to bed and when I woke up it was at 17 without touching it. What can I do who are my options
rocknrolla818 said:
What can I do to better improve my battery life I have gingervolt but I seem to have terrible battery life I literally charged my phone to 100 went to bed and when I woke up it was at 17 without touching it. What can I do who are my options
Click to expand...
Click to collapse
Stop sleeping 14 hours a night. My battery lasted between 8 and 14 hours depending inn what I was doing. When I would flash a ROM, my battery was less for a couple days, but back after that. If its been a few days you can go back to stock and try again to dl and flash gingervolt. I got the extended battery when I heard they were 50 percent off. I have been off charger all day and I am at 44 percent.
Sent from my VS910 4G using xda premium
iamjerry123 said:
Okay so i uninstalled SetCPU and got CPU Tuner. could it be that I never removed blitzkrieg, but instead flashed 1.0 then 2.0 then 2.1?
Click to expand...
Click to collapse
Shouldn't have been the issue. Now just give your phone a day or two.
Sent from my VS910 4G using xda premium
abarthle said:
I'm using CPU Master made by Antutu also, and my battery still drains however I'm not supercharged. I really should look into getting supercharged though.
The batter drain almost makes me want to look into getting the extended battery...
Has anyone had problems at all with extended battery?
Does the phone still fit in the hip holster with ext. battery?
Click to expand...
Click to collapse
Love the extended. I pocket my phone so I have no clue if it fits in the holster.
Sent from my VS910 4G using xda premium
markapowell said:
Love the extended. I pocket my phone so I have no clue if it fits in the holster.
Sent from my VS910 4G using xda premium
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Click to collapse
Yeah I see they're only like $35 on Amazon.com so that may not be a bad idea in the near future since I am in the contract for at least 2 years lol it's probably worth it.
I have basically every script/ mod right now done to my Revo and I use Antutu Battery saver running at level 3 (best battery saver level). I still dont feel like I get good battery life, even when not using the phone too much. I have my cpu set on rom Toolbox running 1900/ 255 on smoothass governor, which constantly switches at random. Does it switch because of my battery saver im thinking? Either way, Im trying to figure out if I should wipe my Revo and restart with just Blitz and Rom toolbox for better battery, with still good speeds. Any suggestions if I wipe clean? Or any suggestions on what to do right now? Thanks!
I'm guessing ur using gingervolt... I've had this same issue on my revolution... I've researched it and everything... I've found nothing
Sent from my VS910 4G using xda premium
Yes using gingervolt. Sorta stuck on what to do
Sent from my VS910 4G using XDA App
jmaxin07 said:
Yes using gingervolt. Sorta stuck on what to do
Sent from my VS910 4G using XDA App
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I could be wrong but I'm guessing that setting 1.9gHz on the Max is just that, the Max. Not necessarily the "constant" CPU speed.
Sent from my Volted Ice Revo using Tapatalk.
Now this might not be the answer you were looking for, but I had found that even with multiple power-saving measure my battery-life was still terribly short. The best thing is to get an extended battery, the one for the Revo is beast in size and battery life. Also, since you didn't mention it, changing from LTE to CDMA is also good if you're not really needing your 4G speeds.
jmaxin07 said:
I have basically every script/ mod right now done to my Revo and I use Antutu Battery saver running at level 3 (best battery saver level). I still dont feel like I get good battery life, even when not using the phone too much. I have my cpu set on rom Toolbox running 1900/ 255 on smoothass governor, which constantly switches at random. Does it switch because of my battery saver im thinking? Either way, Im trying to figure out if I should wipe my Revo and restart with just Blitz and Rom toolbox for better battery, with still good speeds. Any suggestions if I wipe clean? Or any suggestions on what to do right now? Thanks!
Click to expand...
Click to collapse
Your battery life is probably not too good because of the 1900 mhz setting... I use set CPU and you can use different profiles (including screen off, charging, battery threshold below a certain percent, etc.). This helps, but I don't get great battery life without a program like JuiceDefender. The problem there is, though, that it slows my phone down to the point of it taking a minute to get working, and by that time I have already done what I need to do... sort of sucks.
Fallen224 said:
Now this might not be the answer you were looking for, but I had found that even with multiple power-saving measure my battery-life was still terribly short. The best thing is to get an extended battery, the one for the Revo is beast in size and battery life. Also, since you didn't mention it, changing from LTE to CDMA is also good if you're not really needing your 4G speeds.
Click to expand...
Click to collapse
I got the extended battery too and it is a world of difference. I can run all day and night without killing my battery. Even with moderate to heavy use, I can run through a whole day with no charger (and be comfortable). I just got mine through verizon for 24.99 the other week. I may have overpaid, but I don't trust amazon or ebay too much with some things.
samwelborn said:
Your battery life is probably not too good because of the 1900 mhz setting... I use set CPU and you can use different profiles (including screen off, charging, battery threshold below a certain percent, etc.). This helps, but I don't get great battery life without a program like JuiceDefender. The problem there is, though, that it slows my phone down to the point of it taking a minute to get working, and by that time I have already done what I need to do... sort of sucks.
Click to expand...
Click to collapse
I have an extended battery and I stay overclocked at 1.9gHz all day long. I don't use apps like juice defender or anything and I'm seeing 15-18 hours with moderate/heavy use.
Sent from my Volted Ice Revo using Tapatalk.
I use 5 different battery programs to monitor my battery and save my battery, but for some reason my battery drains in an hour.
The thing I see on here the most: monitoring programs, 4g connections, flashing left and right. People need to go to YouTube, and watch the video on how Android phones work. They are constantly learning what apps you use or don't use, they are learning how best to operate for your needs. When you flash a ROM or tweaks, it has to relearn. Sure track your battery for a day or two, see what programs are doing what and when, but then get rid of the extra crap, your phones don't need it. If you want extra battery life, get the bigger battery, you all knew coming to a smart phone that battery life sucks. Stop using app killers, and monitoring programs, they run in the background. Turn off auto run programs so one program doesn't start another.
Sent from my VS910 4G using xda premium
Has anyone measured the battery current? I would think if you are trying all these different setups and use scenarios the actual current draw is what you need to know.
markapowell said:
I use 5 different battery programs to monitor my battery and save my battery, but for some reason my battery drains in an hour.
The thing I see on here the most: monitoring programs, 4g connections, flashing left and right. People need to go to YouTube, and watch the video on how Android phones work. They are constantly learning what apps you use or don't use, they are learning how best to operate for your needs. When you flash a ROM or tweaks, it has to relearn. Sure track your battery for a day or two, see what programs are doing what and when, but then get rid of the extra crap, your phones don't need it. If you want extra battery life, get the bigger battery, you all knew coming to a smart phone that battery life sucks. Stop using app killers, and monitoring programs, they run in the background. Turn off auto run programs so one program doesn't start another.
Sent from my VS910 4G using xda premium
Click to expand...
Click to collapse
+1
the more programs running the more drain. Widgets are convenient but can be real power hogs. Simple and streamlined is the way to go for me. You can have an awesome looking / running phone by being selective with apps and avoiding redundancies. If i have an issue, i dl the program/s i want to troubleshoot with and when im done i uninstall. No need to use resources that could be used elsewhere. You can always dl the app again or save its apk to the external sd or a laptop or both (thats what i did). Ofc, it will have a new learning curve but settles in a couple days, for me anyway.
Sent from my VS910 4G using XDA App
Hey there,
In case you can't tell, I'm a newbie.
Anyways, I'm currently using a 6-yo HTC Dopod Pro and I've finally decided to get a new phone.
I really want to get a Galaxy Note but I hear that the Note has a relatively short battery life.
I also heard that ICS for the Note causes the battery to drain even quicker.
Have these issues been fixed yet?
Cheers.
What you have heard is misinformation. A bad installation of ICS, rogue apps and weird settings are the cause of people having battery issues with ICS.
The Note has one of the best battery lifes among all android phones.
Note has excellent battery life. I have the LQ2 ICS, and I have no weird battery drain, wakelocks or any other probs
Sent from my GT-N7000 using XDA
Just disable some draining apps on ICS.
Don't forget the huge power of note battery( 2500mAh)
I'm also on LQ2 ICS =]
Sent from my GT-N7000 using xda premium
Belfia said:
What you have heard is misinformation. A bad installation of ICS, rogue apps and weird settings are the cause of people having battery issues with ICS.
The Note has one of the best battery lifes among all android phones.
Click to expand...
Click to collapse
Really?
Cuz I hear lots of things about bad battery life on ICS, even on xda.
Some examples:
http://forum.xda-developers.com/showthread.php?t=1676335
http://forum.xda-developers.com/showthread.php?t=1649041
http://forum.xda-developers.com/showthread.php?t=1685383
http://forum.xda-developers.com/showthread.php?t=1676018
http://forum.xda-developers.com/showthread.php?t=1697792
http://code.google.com/p/android/issues/detail?id=32277
http://androidforums.com/samsung-galaxy-note/554408-battery-drainage-after-updating-ics.html
I heard the battery life was pretty good whilst on GB but as soon as people upgrade to ICS, the life was substantially lower.
The battery drain "problem" of the GNote is like troubles with your Windows computer (IMHO): The more you fumble, worse it gets. Use it as it was designed and you'll be a happy person.
I have a GNote for a few months, it was Full Stock under GB and now is Full Stock under ICS. I use it moderately (2nd phone) and could easily manage 36 hours.
I pick it of the charger ~5h30, 6h00 in the morning and find it at 60~70% when I get home about 12 hours later (30~45 minutes talk time, not much else). I than read my favorite blogs and news papers that runs it down to 30-40% (reading takes about 1,5 hours).
When I go to bed it's never lower than 27-30%
The only problem I have is that it sometimes doesn't go in Deep Sleep and that I solve through a systematical reboot in the morning (of the charger).
As always (even people) the GNote is as good as you treat it
Hey Little Vince
Welcome to XDA!
I have had Note for over 6 months (bought from UK to Brissy) Been on ICS only last eight days or so - and I can report that the battery life is slightly better than GB. Speed is better too - not as much lag.
I have used Blackberry/Axim/Palm before and always got into the habit of charging overnight so anything longer than 24 hours doesnt really matter.
Please don't let others put you off a wonderful phone. It is so versatile.
PS - it always takes a few battery cycles (e.g. three or four days) before you get accurate info. I have had quick battery drain for a few hours after updating Kernel but it always settles down.
Tonio78370 said:
...
The only problem I have is that it sometimes doesn't go in Deep Sleep and that I solve through a systematical reboot in the morning (of the charger).
As always (even people) the GNote is as good as you treat it
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What is that systematical reboot you're talking about? Can you explain a little bit?
There are a few tricks suggested in this thread http://forum.xda-developers.com/showthread.php?t=1649041
I found my battery life was quite poor at first but it has improved after a few charging cycles. Also, I had a lot of syncing processes running (some duplicating others). Killing some of those also helped.
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Never had an issue with batt drain, either on gb or ics... I think the latter is a bit better. I leave gps, wifi and 3g on all the time, and am a relatively heavy user... really haven't tweaked anything for batt life, other than removing some bloat.
OP, it would probably help if you told us what you would consider to be decent battery life. That way, people will be able to tell you if it is possible.
As for me, I'm on CM9 and have never tried stock ICS. I can confirm that battery life was better on GB, but CM9 still gets me through the day on fairly frequent use.
Usually fully charged when I get up in the morning (6am), and down to about 20-30% when I charge it at night before bed. This will normally include roughly 3-4 hours screen time from watching movies on the train and internet browsing throughout the day.
Same here no battery problem. I'm using DXLP9 firmware.
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Nah battery drain is a real issue with ICS. It's too documented to be denied. Doesn't matter what I think is good battery life, but relatively with GB, it was 20-30% for about 12 hours of use (wife doesn't use it much) and after ICS, it's -110%. Hmm.. I meant for the 12 hours, it needs a charge and then some. And that's crazy since my wife really doesn't use it much.
Anyhow, this completely fixed it for me. Looks like there's a few bugs that you can come across if you have battery drain with ICS. Check the full thread for more details...
http://forum.xda-developers.com/showpost.php?p=25980444&postcount=2
UPDATE: ok no. Still no real solution for fixing this after trying many over lots of days. AFAIK, kernal problem that Samsung needs to fix. And please do fix!!
As I see it from the times from BBS the problem of the drain is at standby mode where the battery for the start of locking and outing on sleep it eats slot of battery till it reaches the 1% every 1 hour and 45 minutes like it was on lc1 stock, even I had on GB 2 hours 45min for 1%, it starts with 1% for 30 minutes then 45 min 1 hour and so on till it reaches the max of it.
The use with screen on is the same 25% for 1 hour and 20-30 min screen on time with low brightness, as it was with GB. On GB I had 5h30m screen on with 10-14% battery left.
So the issue for me at least, is the standby aka sleep mode.
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to the OP, yes battery drain is a documented issue on ICS, with the wake locks and rogue apps (for the unlucky few.. myself included)
i was on rooted stock GB and i used to have a good 72hrs of standby time for the note especially on the weekend when it is rarely used and maybe a good 48hrs on a weekday with average usage (about an hour's call, moderate surfing, facebook etc)
during days when i travel a lot i can be surfing and listening to music and doing calls for the better part of the day and the note still lasts a day with about 20% juice left by 7-8pm
however after I upgraded to ICS LP9, my battery couldn't even last me for a day without getting a few hours of charge from my laptop, i was on stock ICS for 2 weeks and did a lot of fine tuning just to optimize the battery life and ensure the phone goes into deep sleep and still not sufficient. the thing that blew it for me was when i noticed that my note started running at 1000mhz only and not any lower (even when charging - take note i was on unrooted ICS).. so decided that ICS with all its hype wasn't polished enough yet and was not worth it for me and went back to my stock rooted GB LC2
now i'm a happy camper.. note sleeps like a baby when it is supposed to and runs smoothly when called upon
so to answer your question (sorry about the long story) yes you can enjoy great battery life on note be it GB or ICS but you won't know until you get one for yourself.. and like what the other posters said the note is such a beast of a phone that you will not look into another phone again once you get one be it on GB or ICS
I absolutely would not recommend the G Note until there is another ICS update issued - unless you want to stick to GB (in which case I would definitely recommend).
Apart from the deep sleep problem, which for me anyway, cannot be resolved, I've had stability issues, overheating and it even pulls restarts without warning.
The only battery fixes that have kind of worked for me (and they still don't get me anywhere near the battery life I was getting with GB) involved me following a 5 step programme every time I charge my phone, which is frankly unacceptable.
FYI - I've had the note since December and it's running stock everything.
The Note is an amazing phone, but ICS has rendered mine not fit for purpose.
The sad thing is samsungs and android capabilities in finding the culprits. Fancy native battery charts which dont help much, if any in analyzing.
Only best case is to check deep sleep(cpuspy) , and if deep sleep is low check partial wakelocks in betterbatterystats.
Then you can find a lot of the culprits
Good thing the XDA community picks up where Samsung/google drop the ball.
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To the OP. My Note on gingerbread had wonderful battery life 16+ hrs. After the ICS LPY update my note dies after 5 hours. To all the naysayers saying there are no issues with battery life on ICS, give me a break. Just google how many note and galaxy SII users on ICS are having battery drain issues.
I get exactly the same battery life on ics that I did on gb, the battery drain people are having has nothing to do with ics. It will be apps causing the issues. Im running exactly the same apps as I was before and its exactly the same battery.
Alexanderbooth said:
I get exactly the same battery life on ics that I did on gb, the battery drain people are having has nothing to do with ics. It will be apps causing the issues. Im running exactly the same apps as I was before and its exactly the same battery.
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mmm.... No.... The same apps, even after a factory reset and reinstalling apps I STILL had the drain. You say it's apps that aren't optimized? That could be true... but then again, I guess it must be a VERY VERY common app that's causing this because most everyone says they've experienced a decrease in battery life.