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So I came across this article while surfing the webs regarding battery calibration from Google Engineer Dianne Hackborn and thought to share it with anyone interested. It brings a lot more questions to mind after reading it, but I'm sure everyone will have a different opinion to the subject matter.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
Enjoi!!!
Good stuff; thanks for sharing. I think the responses were almost more interesting than the article
Interesting read that is.
Sent from my SGH-T959V using xda premium
read something like that somewhere on xda. pretty interesting to think about all those battery calibration threads now...
so we just have to use up the battery completely and charge it completely to optimize the way the system manages power?
It makes one wonder, doesn't it? Heck, I've read where people on here are getting 2-3 days of battery life out of one charge with normal usage (yes, I know "normal" is subjective). I can barely get a day most of the time.
You can get days out of this phone, or less than a day. Depends on the screen on time.you're only gonna get like 5 hours max. screen usage.
Also look at your battery stats, if android os is at the top, that's a whole other issue that is caused by a few different things.
Sent from my A500 using Tapatalk
Same but my problem is I never can leave my phone alone lol
Sent from my SGH-T959V using xda premium
LOL. When I'm at home wifi is almost always on, which is draining. Wifi calls seem to almost always be on top, followed by display. I put the display brightness to the lowest level (unchecking auto, of course) and also uncheck the power saving mode as it will change the display brightness.
Haven't really tried going a day or so without wifi as I don't get great coverage @ home.
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@steven_w: try juicedefender. It manages your data connection and wifi
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Thank you for sharing this. Hopefully everyone reads this.
I've always gotten great battery life on my phone. I'm a light user and get 2-4 days regularly, and I've never calibrated my battery.
I usually just make sure my phone is fully charged whenever I flash roms, though that might not really do anything either, other than make sure the phone doesn't die when your flashing.
But I did notice an improvement after flashing the lightning-zap tweak though.
The non-effectiveness of deleting the battery log was discussed here.
http://forum.xda-developers.com/showpost.php?p=21011092&postcount=2
The links within the post provided some useful information on the fuel gauge chip and how it measures open circuit voltage in our phone.
It is a modern old wives tale. Let them waste their time calibrating.
Sent from my SGH-T959V using xda premium
mike-y said:
I've always gotten great battery life on my phone. I'm a light user and get 2-4 days regularly, and I've never calibrated my battery.
I usually just make sure my phone is fully charged whenever I flash roms, though that might not really do anything either, other than make sure the phone doesn't die when your flashing.
But I did notice an improvement after flashing the lightning-zap tweak though.
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Click to collapse
I'd like to know your secret, because I recently had my phone die 16 hours after being fully charged and only about 30 minutes of actual use.
Wow, very interesting, thanks for posting.
Removed
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Harrison85 said:
Same but my problem is I never can leave my phone alone lol
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same here. it seems that my phone only lasts around 8-9 hrs on a single charge. i wonder how some other people make it last for a day? this is the one big downside of android (not particularly this phone) for me. I just installed Tegrak Overclock Ultimate to under volt my CPU and slow down the battery drain. Hope that solves my problem (crossing fingers)
Maybe this is due to my lack of experience, but maybe not. It seems like every time I put a new ROM on my phone it goes to hell in about a month. I'm not a technician but I can follow directions for installation, patches, etc. So far I have had 0 long term success in installing a ROM that ends up being any better than stock after 30-60 days.
For example, I've had issues with battery drain, random booting while the phone is powered off, redraw issues, serious lag, data connectivity issues, and a few other things. It seems like its always something.
The only phones I've toyed with are my old Eris and my Charge. Is this a phone issue, noob issue, or is this par for the course? If it is par I'll end up back at stock and have mediocre performance rather than have a buzz saw that ends up needing constant tweaking and maintenance.
Btw this isn't a knock on developers. I appreciate them sharing all their hard work. I just want to know if everybody else goes through this or am I holding a bag of stupid.
Just rooting does nothing more than give you superuser access. It doesn't even do anything that uses the root specifically. Different roms do different things, but nothing to use battery...mostly they take things out rather than put things in.
Best thing to do is look at BetterBatteryStats and track partial wakelocks. That will tell you what is waking up your system and if there's anything spiking it, you can deal with it. Most of what really drains battery on this phone, other than bad apps, is somewhat random, and it will affect non-rooted phones just as much as rooted.
Must be something you did, picking a good rom make a big different. In my case. I flashed tweakstock to my daughter's phone since the first day it released (with tweakstock kernel), and never, I repeat never have any issue, when tweakstock 1.4 released, this is the second time I touch her phone and up until now she hasn't have any issue. If you use eclipse rom, PBJ kernel, Imonsey kernel, you're going to have issue. They are not bad roms or kernels, but they do have bugs. This is my experience.
Yeah, I think it's you. On stock, I'll be lucky to get 12 hours usage in a low signal environment. On a custom ROM, with custom kernel, I'll make it through the day. Of course, I've had a couple of random total crashes where I had to go at it again, but I deal with it.
PROTIP: the Facebook app needs to be told to stfu constantly. I would get an app like System so you can kill it easily-it still stays in RAM and in wakelock, taking clock cycles, even if you close it by backing out. I found that this was one of the best battery savers.
Sent from my SCH-I510 using xda premium
kvswim said:
Yeah, I think it's you. On stock, I'll be lucky to get 12 hours usage in a low signal environment. On a custom ROM, with custom kernel, I'll make it through the day. Of course, I've had a couple of random total crashes where I had to go at it again, but I deal with it.
PROTIP: the Facebook app needs to be told to stfu constantly. I would get an app like System so you can kill it easily-it still stays in RAM and in wakelock, taking clock cycles, even if you close it by backing out. I found that this was one of the best battery savers.
Sent from my SCH-I510 using xda premium
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Yes, I agreed with kvswim, Facebook is a big battery drainer, I ended up using the browser for facebook, it's not as nice as the FB app, but once you get a hang of it. It's fine. I suggest if you want trouble free, ODIN pit file and original factory image, then upgrade to tweakstock with tweakstock kernel, then install Go launcher for smoothness. To save battery even more install battery saver by Antutu.(keep all default settings, don't play with it). You will see big improvement with both battery and smooth trouble free phone.
Please use the Q&A Forum for questions &
Read the Forum Rules Ref Posting
Moving to Q&A
buhohitr said:
Yes, I agreed with kvswim, Facebook is a big battery drainer, I ended up using the browser for facebook, it's not as nice as the FB app, but once you get a hang of it. It's fine. I suggest if you want trouble free, ODIN pit file and original factory image, then upgrade to tweakstock with tweakstock kernel, then install Go launcher for smoothness. To save battery even more install battery saver by Antutu.(keep all default settings, don't play with it). You will see big improvement with both battery and smooth trouble free phone.
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you really find a battery saver to be helpful. Every time i try one it ends up costing me more battery life than it saves.
As for the phone issues. Are you wiping data, cache, and dalvik before you flash? Not doing so can really muck things up. And a lot of times its just an annoying app that sucks up all ur juice, ie words with friends and facebook. I use them alot so I deal, but u can definitely tell the difference when u dont have those apps installed.
No i dont think its u...i have problems also.i jus made a post about my home/hard key...its always seems to b something after the next.but it looks like people find ways to deal and eventually conquer.also i appreciate wat the developers do.its alot of work and headaches.on top of posting and replying to many many people.its the roms that cause problems...constant tweaking and toying around...alot of times things jus need to b debugged a little it seems.but its all in the nature of what were all doing here.good luck to u
Sent from my Gummy Charged GBE 2.1 using XDA App
cnoevl21 said:
you really find a battery saver to be helpful. Every time i try one it ends up costing me more battery life than it saves.
As for the phone issues. Are you wiping data, cache, and dalvik before you flash? Not doing so can really muck things up. And a lot of times its just an annoying app that sucks up all ur juice, ie words with friends and facebook. I use them alot so I deal, but u can definitely tell the difference when u dont have those apps installed.
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Hey. how about give the "battery saver" app by Antutu a try. This is one of the kind. It does not kill processes like others. It actually readjust cpu frequency during usage and put your phone in heavy deep sleep, after installed, let it run for 2 days, you will notice at least 3-4 hrs more during usage and 10+ if you let your phone sleep. I have test this app with wifi,4g,gps on 24/7 and I still have good battery life.
I downloaded betterbatterysaver to check my stats. Now to figure out how to read the data. Any suggestions? I've searched Google and it seems to be a mystery for many. It appears that Dolphin HD is using most, but I kill the program when I'm done???? I switched to mini and froze HD to troubleshooting. I only use FB browser too. I ditched the app long time ago.
Before I flash I wipe dalvik cache, data, and then wipe it again. I follow directions closely since I can't figure my way out if something goes wrong. I'm running tweakstock's latest right now and I'm really enjoying it. Very stable and snappy. However, the battery problem is killing the experience. It drained fro. 69% to dead in 6 hours overnight! Switched from 1.1 because the phone got very laggy and the hand off between 3-4g was getting dropped and I was losing data connection.
I will try the battery saver app. Just got battery calibrated and still not any better. My need to have a phone that doesn't suck will keep me playing with this thing until I get it right. My Charge is used so much it's like my third hand.
donkason said:
I downloaded betterbatterysaver to check my stats. Now to figure out how to read the data. Any suggestions? I've searched Google and it seems to be a mystery for many. It appears that Dolphin HD is using most, but I kill the program when I'm done???? I switched to mini and froze HD to troubleshooting. I only use FB browser too. I ditched the app long time ago.
Before I flash I wipe dalvik cache, data, and then wipe it again. I follow directions closely since I can't figure my way out if something goes wrong. I'm running tweakstock's latest right now and I'm really enjoying it. Very stable and snappy. However, the battery problem is killing the experience. It drained fro. 69% to dead in 6 hours overnight! Switched from 1.1 because the phone got very laggy and the hand off between 3-4g was getting dropped and I was losing data connection.
I will try the battery saver app. Just got battery calibrated and still not any better. My need to have a phone that doesn't suck will keep me playing with this thing until I get it right. My Charge is used so much it's like my third hand.
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Did you try to disable(freeze) SDM app and also Google service? May need to backup all your apps and do a factory/data reset, If not help, possible to re ODIN factory image (see pos # 5) since you have data drop issue. Some thing is mess up in your OS.
For betterbatterystats look at wakelock and see what process used the most.
If it died overnight then something is definitely eating your battery. Are you in a low signal environment? Go to settings, about phone, then battery usage. If anything besides display is taking more than around 5-10% (can be more if you use it a lot) then that's your main problem. If your cell standby is more than 25% it's the low signal that's killing the battery.
Sent from my SCH-I510 using xda premium
Data is up and running smooth after flashing newest tweakstock. My home has a strong signal and my bedroom is sometimes 4G so I don't believe the signal was low, unless the transition between radios killed it. However, it wasn't a problem 3 weeks ago.
I did freeze SDM and noticed some improvement. Buhohitr, did you mean freeze Google services framework?
Battery usage seems to be normal for now. I am noticing Dolphin is no Singer sucking down 35% or more since I switched to Mini. It doesn't even show up on the list.
I'll see how it goes today and report back on wakelocks. If it doesn't get any Beyer ima Odin to stock and root/flash tweakstock again.
Also, the battery doesn't drain unusually fast wile in use, browsing, music, etc. But when it sits it drains at 3-4% an hour.
I would try manually calibrating your battery. It really worked for me. On average I get about 18-19 hours on one charge with medium to heavy data usage throughout the day. There is a thread in the General section.. I'll post a link in a little bit.
EDIT: Here is the link. It's a stickie but I figured I'd save you a little extra time. http://forum.xda-developers.com/showthread.php?t=1187698
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ewh1292 said:
I would try manually calibrating your battery. It really worked for me. On average I get about 18-19 hours on one charge with medium to heavy data usage throughout the day. There is a thread in the General section.. I'll post a link in a little bit.
EDIT: Here is the link. It's a stickie but I figured I'd save you a little extra time. http://forum.xda-developers.com/showthread.php?t=1187698
Sent from my Tweaked Droid Charge using XDA App
Click to expand...
Click to collapse
Wiping battery stats is a complete placebo. All the battery stats stores is the state of apps as related to various things that affect battery life (like display on time, screen brightness over time, and wakelock states). It does nothing that will actually affect your battery life one iota. It is actually cleared every time you charge your battery to 100%, so manually wiping it is completely pointless.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
shrike1978 said:
Wiping battery stats is a complete placebo. All the battery stats stores is the state of apps as related to various things that affect battery life (like display on time, screen brightness over time, and wakelock states). It does nothing that will actually affect your battery life one iota. It is actually cleared every time you charge your battery to 100%, so manually wiping it is completely pointless.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
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Click to collapse
I'm well aware of the post of Dianne Hackborn debunking the myth of wiping the battery stats; however, if you actually read the post on the steps to calibrating your battery, it's not just wiping your battery stats. There's actually a few more steps involved. You're right though, if you just wipe the battery stats and expect better battery life you're just wasting your time.
Sent from my Tweaked Droid Charge using XDA App
donkason said:
Data is up and running smooth after flashing newest tweakstock. My home has a strong signal and my bedroom is sometimes 4G so I don't believe the signal was low, unless the transition between radios killed it. However, it wasn't a problem 3 weeks ago.
I did freeze SDM and noticed some improvement. Buhohitr, did you mean freeze Google services framework?
Battery usage seems to be normal for now. I am noticing Dolphin is no Singer sucking down 35% or more since I switched to Mini. It doesn't even show up on the list.
I'll see how it goes today and report back on wakelocks. If it doesn't get any Beyer ima Odin to stock and root/flash tweakstock again.
Also, the battery doesn't drain unusually fast wile in use, browsing, music, etc. But when it sits it drains at 3-4% an hour.
Click to expand...
Click to collapse
To disable Google Service, go to settings -> location&security and uncheck Google service. Do not freeze Google framework. Also seems like your phone is not in deep sleep, please install "battery saver" by Antutu and let it works for 24 hrs, you should see huge different when your phone is sleeping. BTW what kernel are you using? If you're using PBJ kernel you can install "CPU tuner" to further keep your phone in deep sleep. I'm talking about 1% for 3 hrs sleeping.
I'm curious as to what Battery Saver actually does. The app's market page doesn't say. I'd be curious if it would interfere with my IMAP push email or SetCPU's overclock settings.
ewh1292 said:
I'm well aware of the post of Dianne Hackborn debunking the myth of wiping the battery stats; however, if you actually read the post on the steps to calibrating your battery, it's not just wiping your battery stats. There's actually a few more steps involved. You're right though, if you just wipe the battery stats and expect better battery life you're just wasting your time.
Sent from my Tweaked Droid Charge using XDA App
Click to expand...
Click to collapse
I've done that and never seen an actual difference. Like I said before, I have no reason to believe that any of it is anything other than placebo. My normal daily variability in use is more than enough to account for any perceived differences. On top of it all, bump charging is not good for a Li-Ion battery, so if anything, those instructions are a good example of how to lose long-term battery life for short term gain.
shrike1978 said:
I've done that and never seen an actual difference. Like I said before, I have no reason to believe that any of it is anything other than placebo. My normal daily variability in use is more than enough to account for any perceived differences. On top of it all, bump charging is not good for a Li-Ion battery, so if anything, those instructions are a good example of how to lose long-term battery life for short term gain.
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Click to collapse
Personally, I believe that most of the time the procedure does nothing. I think there are times, though, that corrupt data gets into the battery stats. For instance, I had an app lock up my phone and force a hard boot. When the phone came back up, it showed 22% more battery than it had previously. I believe that bad data such as this can over time affect how Android reads your battery life. In that instance, I believe clearing battery stats would help. I don't think doing it just because a new ROM was flashed actually does anything, though.
Last night I made a backup, used the nullifier, flashed rooted 2.3.4, and everything went haywire. I had lost all my nandroids and all that. Ok so then I decided to put the phone back to factory stock and did the OTA update to 2.3.4, then rooted with superoneclick. I have an extended 3500mah battery that I calibrated this morning after a full charge. Everything was normal so far today (i was at around 70%) and restarted my phone for some reason or another and realized that when i do this the battery reads 100% again. I like accurate battery readings, anybody know how and why this might be happening?
More then likely from a poor quality after market battery. Battery "calibration" is a myth. Most phones will read any battery as 100% when it first boots. All of my phones do it even with stock batteries even my nexus.
I personally know how to wipe my own device and so should anyone who installs roms on their device. You shouldn't depend on a script to do that for you especially if you do not understand the functionality of that script. If something says "format" it means everything is gone. If it says formats all partitions that means all data on all partitions is gone. If your backups are in that partition then they are gone. Nothings going haywire it did what its supposed to do.
Sent from my Galaxy Nexus using xda premium
My question was about the battery, an answer only about the battery would have been sufficient.
Battery is not poor quality. It consistently gives me 2 days of charge since December.
Calibrating my battery is something that I do because I like to have accurate readings. I know what calibration is supposed to do and what it doesn't do. I'm aware that it doesn't give the battery more juice.
I know how to flash a rom and I know what the scripts do. I know how to wipe and I know why it's necessary. I did nothing any differently than I've done countless times before. Sometimes things just don't work right. Not that any of this even matters because the question was about the battery readings behaving in a way they haven't before. The rest was only mentioned in case it had some bearing on the cause of the problem.
I guess it's back to not posting a word on here until I'm done being disgusted with the way users attempt to "help" one another. Ugh.
Sent from my LG-P999 using xda premium
Are you using the stock kernel?
I think something about nvflashing has a weird impact on battery. I nvflashed the touch recovery a few days ago, and afterwards I was sure I had about 35% left, but battery read 80. I plugged it in and while it charged, the number kept going down till it met the actual battery reading (around 65%) then started charging back up.
e4e5nf3nc6 said:
My question was about the battery, an answer only about the battery would have been sufficient.
Battery is not poor quality. It consistently gives me 2 days of charge since December.
Calibrating my battery is something that I do because I like to have accurate readings. I know what calibration is supposed to do and what it doesn't do. I'm aware that it doesn't give the battery more juice.
I know how to flash a rom and I know what the scripts do. I know how to wipe and I know why it's necessary. I did nothing any differently than I've done countless times before. Sometimes things just don't work right. Not that any of this even matters because the question was about the battery readings behaving in a way they haven't before. The rest was only mentioned in case it had some bearing on the cause of the problem.
I guess it's back to not posting a word on here until I'm done being disgusted with the way users attempt to "help" one another. Ugh.
Sent from my LG-P999 using xda premium
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Click to collapse
Lol well I answered with my thoughts and responses. If you don't want answers don't ask questions. And don't get butt-hurt when someone answers for you. Exactly why I don't usually answer questions in these threads. Just too many emos when you give a straight answer. If you can't handle educated answers don't ask uneducated questions....
Bottom line how does it read with the stock battery? Almost every extended battery I've seen is missing sensors. So yes I'd say those ate ALL poor quality
What is the brand of said battery?
Sent from my Galaxy Nexus using xda premium
I was on GB and had amazing battery life!
Just flashed AOKP milestone 6 and I can can't watch
The battery drain.
I've read forums and not much help.
I DL better battery but don't really know how to use.
I tried formatting battery stats.
Any solutions?
I am having the same issue. I am going yo try cMIUI. what are you getting for battery life?
Sent from my SGH-T959V using xda premium
Are y'all sure it's not just because you're doing lots of stuff with your phone right now, having just flashed a new ROM?
If it's an extreme amount of battery drain, it might be some leftovers from whatever you had last. You could try a factory reset and then see how stock AOKP handles battery drain.
I know I don't get battery life as good as I did with Octane, but a big part of that is because I've been flashing the new AOKP builds every couple of days, so things don't get a chance to settle down. (Granted, battery life still isn't as good as when I just flashed Octane.)
There is tons of things regarding this very issue in the AOKP q & a thread. Please use the search this thread button in that thread. Ive typed a response atleast four times today. And atleast four yesterday and more the day before and the day before that. NOt trying to be a ****, but Im tired of typing and responding. If you cant be bothered to read the thread or search I cant be bothered to respond anymore.
Not sure for sure.
But I get 5-6 hours on full charge with medium use(text. Instagram. Web.)
How can I get exact info?
Read the AOKP Q&A, yes, the whole thing
Read the OP's instructions on the AOKP dev thread
Read the thread on Bettter Battery Stats
Listen to what people say about battery use
Think about what you have done and what to try next
Do
Rinse
Repeat
Ask yourself "Why am I flashing ICS at all?" -- ICS in the SGS4G is still very much in development.
I don't think you realize how unreasonable it is to ask someone to read that entire Q&A. I've followed the thread from its beginning, and there's no real solution to the battery issue being described here. You'd only be wasting everyone's time who took your advice. I've also read all of OP's instructions in the AOKP dev thread, and have even tried the gremlin remover prior to flashing AOKP. This does not solve the battery issue. You're seeming to imply that the battery issue is the user's fault, and I think that's not even remotely close to the truth. I've done multiple flashes, each time trying something different, to see if I did anything to cause the horrible battery in AOKP, and they all concluded the same way. With that said, we need to actually try to fix this, instead of sending people in circles and pretending to fix it.
First of I dont have battery issues at all with AOKP I am a User a very grateful user (thx 2 our devs). Just factory reset, after that wipe cache, system, everything except your sd card of course) and the flash your rom. Its really a matter of re-assuring everything is wiped. Also leave your phone alone for awhile I left mine around 2 hrs alone, while the rom settles.
jeffsf said:
Read the AOKP Q&A, yes, the whole thing
Read the OP's instructions on the AOKP dev thread
Read the thread on Bettter Battery Stats
Listen to what people say about battery use
Think about what you have done and what to try next
Do
Rinse
Repeat
Ask yourself "Why am I flashing ICS at all?" -- ICS in the SGS4G is still very much in development.
Click to expand...
Click to collapse
Go to the Gremlin Remover dev thread, and try steps 1-3. If you are STILL having exaggerated battery loss, try using gremlin remover it'self. If you still have problems, after making it back to your preferred rom, just put the phone down for a while.
adobrakic said:
You're seeming to imply that the battery issue is the user's fault, and I think that's not even remotely close to the truth. I've done multiple flashes, each time trying something different, to see if I did anything to cause the horrible battery in AOKP, and they all concluded the same way. With that said, we need to actually try to fix this, instead of sending people in circles and pretending to fix it.
Click to expand...
Click to collapse
Some of us are getting good-very good battery life, and some of us are not - using the same exact ROM. I don't know what that tells you, but what it tells me is that it *is* likely to be a user issue.
People complain about battery life, but they hardly ever talk about the total time they are using it (including fiddling around with it), what programs they have used or have installed, and how they are restoring after they flash (i.e., if there is a chance they are bringing along bad stuff from a previous incarnation of the phone). More information about these things and - yes - doing tedious things like the process of elimination might be enlightening here.
adobrakic said:
I don't think you realize how unreasonable it is to ask someone to read that entire Q&A. I've followed the thread from its beginning, and there's no real solution to the battery issue being described here. You'd only be wasting everyone's time who took your advice. I've also read all of OP's instructions in the AOKP dev thread, and have even tried the gremlin remover prior to flashing AOKP. This does not solve the battery issue. You're seeming to imply that the battery issue is the user's fault, and I think that's not even remotely close to the truth. I've done multiple flashes, each time trying something different, to see if I did anything to cause the horrible battery in AOKP, and they all concluded the same way. With that said, we need to actually try to fix this, instead of sending people in circles and pretending to fix it.
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Click to collapse
Ya know when I first came here I said something similar. But Ive kept up with these threads now and I know for a fact battery life issues have been discussed to a point that the devs are ready to pack up and leave. Nobody wants to read or even search. Instead the battery life issues are blamed on the shotty coding of the people building these roms. If you are getting bad battery life it is plain and simple a user error. Unless you can provide logs stating otherwise then just drop it try what is being suggested or go back to stock roms. Install all the apps you need to customize the phone like it is on the ics variants and then report back here. I garandamntee you will have ****ty battery life.
These custom roms have so much stuff added to them that is hard coded in for customization that its not going to have super battery life like a unbloated stock rom. But you cant expect it to. A good comparision was made earlier in another thread. Would you expect to get 8 hours out of a laptop battery?
I always tell people to make sure to completely drain the battery....all the way until it shuts off, because mine will sometimes stay at 1% for nearly 2 hours.
Seems like it doesn't know its own scale until you do that a few times.
Also never ever ever restart this phone while having it plugged in or turn it on while plugged in.
Let me give you the scenario, it will be charging let's say around 50% and then after restart while plugged in right around 75-80% and that little act took me a long time to recalibrate my battery and I'm not talking about deleting the battery stats, I don't delete battery stats anymore at all (read an article from Google saying its pointless)
All that said I'm a very heavy user, and I like a bright screen and I'm getting (what I would consider) good battery life. But I have a 3500mah so its never too bad for me
Hope this helps someone
Sent from my SGH-T959V using xda premium
well me too experiencing super fast battery drain
i have flashed aokp milestone latest build by wiping factory reset.
also allowed to sit the phone for 1o mins
my wifi,bluetooth,gps remains off all the time, also screen brightness is at its lowest.
on moderate texting the phone wont last more then 4 hours
Sent from my SGH-T959V using xda app-developers app
I'm on aokp
I'm on AOKP, and my battery life is GREAT. There are plenty of steps and tips mentioned here to find out what your battery problem is.
I would like to see screen shots of the battery usage of people that have crappy battery.
From home hit menu>settings>scroll down a bit to battery.
Take two screenshots one of the initial screen, then touch the graph at the top and take one of that screen.
I keep hearing battery life is horrible I only get 4 hours, please fix this, hows battery life..blah blah blah battery. Yet nobody will drop usage stats, logs of a days use, offer anything but i use my phone moderately. I call bull**** on that, How many texts do you get/send in a day? How long are you on the phone making calls? Do you live in a poor service area? Give some info.
On a average day I get about 50 texts, might make a 20 minute call, use tapatalk a half dozen times, and use tweetcaster and flipboard a dozen times. I can get 12-15 hours out of a full charge. To me that is light to moderate use. I get crappy data where Im at right now so Im on wifi A LOT. When Im actually using t-mo data more I can get closer to 18 hours out of a charge
People if your having problems with battery life stop rebooting the phone a hundred times a day. Stop shutting off all the radios thinking it will help. use the dang phone like it was meant to be used. None of the code is optimized for people to shut radios off and turn the phone into a dumbphone. You are making it worse by shutting these things down and turning them back on. It takes power to properly shut off bt, wifi, data. Next time you do watch the radio will not just instantly shut down. It has to power off all the service that is using it and then power down. Otherwise you would be here *****ing about tons of force closes.
I get about 17hours on my phone and i have a stock battery. I use all the extras PROVIDED TO US BY THE DEV like turn off wifi/date off or to 2g while phone screen is off. Auto bright and all the extras.
blazen2000 said:
I get about 17hours on my phone and i have a stock battery. I use all the extras PROVIDED TO US BY THE DEV like turn off wifi/date off or to 2g while phone screen is off. Auto bright and all the extras.
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^ THIS
I usually get 14-17 hrs doing the same. No battery issues. If you leave data/wifi on all day and are constantly checking email, Twitter, and Facebook what do you expect? Battery is fine.
Shortbus-Driver said:
I'm on aokp
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How much time do you spend on "screen"?
My phone usually drains 10% each 5hours of sleeping (air plane mode). Is that normal? I can get around 3hours of web surfing,which is less than it was on SCOM (4hours).
Sent from my SGH-T959V using xda app-developers app
Close to a day of battery , I turn on data when I want. Poor service area, my only issue is it stays awake more, but all functions work
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hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
Get your phone to 100% battery and then just play whatever you like until it completely dies. Then, plug it in to charge and dont touch it until it gets back up to 100%. That is supposed to increase the battery lasting time by 20%. It only works once...so dont do it 5 times hoping for results. This is supposed to be done when you first get the phone, but if its never been you've never done it, its worth the shot.
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rygtuu said:
hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
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Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
lumin30 said:
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
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Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats. If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
By this time, the day is over and it needs to be charged anyways. I plug it into the charger before bed and let it charge up all the way with nothing running (no wifi, no bt, no background apps running).
After that charge, battery life seems soo much better. ymmv. it would be good to know if that works for you too.
Otherwise, everyone uses their phone differently, and some people install stupid apps that have intensive background services running that eat batteries, then complain about the rom sucking instead of introspecting about how they use their phone.
bhundven said:
Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats.
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Just to clarify - battery stats file have nothing to do with battery performance and the battery stat file "is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point)." Google Engineer Dianne Hackborn
ahh ok thanks guys ill do what you guys said and see if it helps
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
mike-y said:
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
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These arent as helpful as they use to be. I have seen and challenged people to run with and without and the added battery life is either very minimal or actually worse with these apps.
Battery saver apps where created when android was very young and had bad management of the battery power. The way it works now it should lower the power to the radios low enough to save battery but not completely shut off the radios. Shutting them off will actually harm battery life because it takes so much more power to turn them on and off repeatedly then to let them idle.
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
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Download Gemini from the play store and manage the autorun for apps. That's what I do and it saves quite a bit of battery
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solrac1212 said:
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
Sent from my SGH-T959V using Tapatalk 2
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Ill agree with you on froyo but gingerbread towards the end was much better.
The biggest thing is people dont realize how much power is used to start and stop things. Letting them idle will use battery but not nearly as much if you start and stop many times a day. Now at night if you want to turn off those things then yeah go for it. But if you are a frequent phone checker then starting and stopping them everytime will chew through the battery.
A good example is this, its summertime go outside and look at your electric meter when the ac first turns on. It will spin reeal fast for a minute or so while the system gets everything going then it will slow down. This same thing applies to your phone and its radios. Each time you shut it off it has to go through a process so you dont get corrupted data. And when you turn it on it has to use a lot of battery to make sure things dont get messed up and get to the proper operating form.
So any app that shuts off the radios manually and such will end up costing you battery if you are a power user.
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
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thomas.raines said:
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
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I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
justiz33 said:
I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
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Music soaks up a lot of battery as well as display, data, and sync. You can try turning off sync and data when you don't need them. But it sounds like you are doing better. I am still concerned with what else you have running in the background though... however, 12-16 hours isn't bad at all...
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bhundven said:
.... If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
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What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
HKSpeed said:
What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
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Yes, as well as /system/ and at least .android_secure on your microSD
I would recommend against fully discharging your battery as a matter of course. While this might have been useful in the days of NiCads, deep discharges and heat are the Kryptonite of LiIon batteries.