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http://img100.imageshack.us/img100/3922/snap20101010220328.png
This is my moderate use. Few web here and there facebook, some calls/texts and instant messaging for a good 3hrs
I am running cog 2.2b5
Just wanted to compare battery life and post the rom you are running too
Sent from my SAMSUNG-SGH-I897 using XDA App
my battery life sucks. i get about 10% per hour....
What Rom are you using?
yeah my batt isn't too great either. 2 days on Cog V5 now. Each day has been roughly 10hrs with about 4.2hrs use. Each day I ended with maybe 1-2% left.
Is this normal? Froyo didn't help a bit. In fact it may have made it slightly worse.
When I flashed b5 ... it was great. Then I found my gps sucks on it so I flashed again and I found that the battery drains like water 1% every 5 mins! ( Idk what's going there) Then, I flashed again and the above post is my result and my gps still sucks. So maybe if you flash it again it might help. I re partitioned in odin as well.
I am using Froyo (JI6) with lagfix and I get a consistatnt 12+ hours of moderate use. I usually charge my phone every three days.
Cog 2.1.7
I have to charge my phone every night. I have used multiple roms from cog 2.1 and even cog 2.2 as well as stock and it all seems the same.
There is no way that is an accurate picture... there is no way you made phone calls or used the facebook app without it showing up in usage.... u may have gotten 40% out of 12hrs but you did nothing with your phone
Sent from my SAMSUNG-SGH-I897 using XDA App
all my calls are usually short and yes i used facebook app and facebook browser as well.
Smallsmx3 said:
There is no way that is an accurate picture... there is no way you made phone calls or used the facebook app without it showing up in usage....
Click to expand...
Click to collapse
I use tons of apps on my phone and the only things the show up in my battery usage are: Display, cell standby, phone idle and voice calls.
you need to recalibrate your batteries or flash from 100% as DesignGears had mentioned earlier.
i now flash from 100% batt life when upgrading to new ROMs. or do a search for battery calibration.
Not sure how to do a screen shot but Im running 2.2 beta 5 and I thought battery life sucked but it was because I was checking it constantly and playing with GPS.
Today, after recalibrating battery stats two nights ago I have dropped 3% in 3 hrs of standby and very, very light use.
Also, to recalibrate battery stats I downloaded terminal emulator and did the following
su
rm /data/system/batterystats.bin
I had drained it fully down to 1-2%, did the above commands, plugged it in and charged to 100%. You must be rooted to do it this way I would think since Im using su for superuser.
Yea, I recalibrate the battery on my 2nd flash. the first flash my battery was draining literally 1% per minute. So I reflashed (I thought something went wrong on my 1st flash) and recalibrated now it's normal again.
gocats7: Yup cog comes rooted
Cognition is awesome. With all the features built in, the att crapware stripped out I dont see myself ever running a stock ROM again. In regards to battery though, I think its at least as good as stock if not better. I havent had 2.2 beta 5 loaded long enough to really tell.
I've never had poor battery life. I did have that "new phone syndrome" when I got it and had to charge it a lot. But now I'm going around a day and a half on a charge with moderate use. I use wifi everywhere I can and try to minimize the time the screen stays on.
miztaken1312 said:
I've never had poor battery life. I did have that "new phone syndrome" when I got it and had to charge it a lot. But now I'm going around a day and a half on a charge with moderate use. I use wifi everywhere I can and try to minimize the time the screen stays on.
Click to expand...
Click to collapse
Have you found that wifi has been helping your battery life? When I have mine on I lose battery at ~5-10% an hour. With it off I lose 1-2% an hour. I have to switch it off nightly so that I don't have to charge my phone again in the morning.
Just the thread I was looking for...
I just recently bought a captivate that had the battery problems it seems so many are having with random shutdowns etc. I would get maybe 12 hours before getting the recharge notice. And that is with very little use. So, along with the advice from these forums, I had it replaced within my 30 days and immediately noticed a difference in the way the phone felt(if that even makes sense). It seemed like the screws were tighter, it was cleaner and it way out performed my previous captivate. Had me thinking I was given a display model or something.
So, to keep it short....I just plugged in after (for me) a very impressive 64 hour strech with moderate useage, some gaming and movie watching. Could not be happier with this phone right now. I cannot for the life of me figure out how such an impressive spec'd phone can use so very little power while locked. It makes me feel like a proud parent...lol.
I <3 My Captivate...
nybmx said:
Have you found that wifi has been helping your battery life? When I have mine on I lose battery at ~5-10% an hour. With it off I lose 1-2% an hour. I have to switch it off nightly so that I don't have to charge my phone again in the morning.
Click to expand...
Click to collapse
I have actually found my battery lasts longer with wifi on. I only turn it off when I leave the house. For me the wifi seems to be a lot more power/data efficient then my data connection. I can use the phone all day on wifi and still have 20% left at the end of the day whereas when I've been out all day long using data I can barely make it home without it *****ing at me to charge the phone.
Sent from my Captivate
I have had the best battery life yet with Cog 2.2 Beta 5.5 and migrating my Exchange server to Google Apps Premium so I do not need to use stock corporate email app anymore. I am pretty happy with this so far although I have only used the new beta for a day so far.
As a bonus, I am even using Live Wallpaper.
27hr, just dropped below 30%. Love it
Ok, I have been flashing for a few months trying to optimize my phone. My last rom was serendipity 6.2, with sp 59 and jl2. I restored to stock (bc I wanted to try something else and hadn't done that in a few weeks) my battery life on serendipity was atrocious.. 6 hours with medium usage. (hardly any calls or messages, looking things up or reading xda briefly) . I spent today on stock, after about 20 hours of light usage I am at 60% left. Now I did flash with a full battery serendipity, wiped battery stats and cleared cache and after several charge cycles and a few days battery life was still awful. I was about to get a new battery. Now I don't mean to single out serendipity, I've had bad battery life on paragon, dilli, and a few others (this time it just got unbearably bad), but why should battery life be so bad on custom roms? Am I alone on this? I hesitate to flash again bc I'm loving having a phone that won't die if I touch it, but I miss the functionality of the device with a custom 2.2.1 on it. Advice or opinions please.
Sent from my SAMSUNG-SGH-I897 using XDA App
I'm having the same problem. Everybody keeps saying they've got excellent battery life and what not with custom roms but mine doesn't seem so good. Wifi is off, I've wiped battery stats, I've used the rom for several days letting everything get situated before I begin thinking about if its good battery life or not. Maybe I'm just expecting too much or I watch my battery a lil bit too much, idk it just seems pretty bad. If I stay on the internet for 20 minutes I've already dropped about 3%
Sent from my SAMSUNG-SGH-I897 using XDA App
The normal Batt live on this phone with normal use is between 12 to 16 hours
I'm thinking part of it may be psychological and part may be usage.
Psychological in the sense that I have an expectation of an improvement, practical in that with my stock rom I haven't reinstalled certain apps like xda and pulse where I spend a lot of time reading and thus using the screen.
That being said I was still experiencing drains of 8% or more per hour when the phone was idle, wifi and gps off.
There is a way to check the cpu's time in each state, but I can't remember where the file is. If someone can, please let me know. I'm curious if under the custom rom my phone wasn't properly scaling down.
I'll probably flash something new tomorrow morning unless I see something shiny and new in the dev forum.
Sent from my SAMSUNG-SGH-I897 using XDA App
So 6 hours seems a bit low then? Could it just be a cumulative effect of flashing rom on top of rom with restoring to stock?
Sent from my SAMSUNG-SGH-I897 using XDA App
eccezarathustra said:
So 6 hours seems a bit low then? Could it just be a cumulative effect of flashing rom on top of rom with restoring to stock?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Yeah 6 hrs does seem a bit low. There are many things that can contribute to it. If you are bouncing between H and 3g on a custom rom will drain it like crazy, I had to disable H and stick with 3g and that helped. could also look at OS monitor to find what is running in the background.
Ok, I did notice that recently I was jumping between h and 3g. I was experimenting with some of the new modems. Should I try finding a better modem for my location?
Sent from my SAMSUNG-SGH-I897 using XDA App
eccezarathustra said:
Ok, I did notice that recently I was jumping between h and 3g. I was experimenting with some of the new modems. Should I try finding a better modem for my location?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I would try others, as well as disable H in the hidden menus, and see how it fairs
@ zelendel.... so by H i assume you mean data... i see alot of back and forth when data is on. i know when data is off i'm still using wcdma from the gsm status, but it doesn't show the 3g icon.
i need my data because i'm from the states but living in australia and alot of my comunications are thru email/facebook.
when i look at battery usage i see rarely more than 5% from cell....usually 90 something from display ( i fiddle with it alot).
can't expect too much cause it's a powerhouse with a tiny battery........
for me the big Q at present is... can we top up the charge regularly or is it always best to let a full cycle run? if i knew it was fine to keep it topped i'd stay 50%+ most of the time i think................
It is not great to keep it topped off. The lithium battery will wear out faster and lose charging capacity over time. this process is sped up the more time the battery spends at a high charge
Sent from my SAMSUNG-SGH-I897 using XDA App
Visit the Samsung web site and read the battery specs for the Captivate. The stock battery is only rated for 5 hours and 50 minutes of active phone use (which means the display is active). In sleep mode (display and other features of the phone are shutdown) the battery is rated for up to 300 hours (12.5 days).
I have NEVER seen a stock Captivate last for over 3 days in sleep mode. As for active phone use (display is active) my experience with several of the custom ROMS (Cognition, Paragon, Andromeda, and now my favorite, Continuum) is that the battery life is either on par with the stock ROM, or exceeds it. The kernels on some of these custom ROMs are more efficient than that of the stock ROM due to the many tweaks and cleaning up of bloated apps and code by the developer.
I can't bring myself to keep a stock ROM now that I have used some excellent custom ROMs like those I name above.
As for flashing custom ROMs and seeing fast battery drain goes... I have had that experience with those I listed, but usually I was able to resolve the issue by ensuring my battery was at 100% (meaning showing that amount both on and off) and reflashing, or finding the cause of the high battery usage and going from there (e.g. I have had to reflash modems). Another thing I do, mainly out of habit from compiling code and deploying it in dev and test environments, is to make sure that I am working from a known good baseline ROM before flashing a custom ROM. In this case I always return to the stock ROM you can flash through Odin One Click. That way if you have battery problems after flashing a custom ROM you can have a good idea as to what is causing those problems. This is, of course, just a matter of personal preference. Some have repeatedly flashed one custom ROM over another with no issues. YMMV
fractaline said:
@ zelendel.... so by H i assume you mean data... i see alot of back and forth when data is on. i know when data is off i'm still using wcdma from the gsm status, but it doesn't show the 3g icon.
i need my data because i'm from the states but living in australia and alot of my comunications are thru email/facebook.
when i look at battery usage i see rarely more than 5% from cell....usually 90 something from display ( i fiddle with it alot).
can't expect too much cause it's a powerhouse with a tiny battery........
for me the big Q at present is... can we top up the charge regularly or is it always best to let a full cycle run? if i knew it was fine to keep it topped i'd stay 50%+ most of the time i think................
Click to expand...
Click to collapse
No what I mean is disable HSDPA I think is the term lol. Sense you go back and forth I would say to disable that and just use 3g only.
If you don't know the code to get too the menu download sgstools it has the hidden menu keys.
Sorry but where can I find the hidden menus?
Sent from my SAMSUNG-SGH-I897 using XDA App
EDIT: just saw the last post thanks
I am the opposite, I got horrible battery on stock. Could not even make it through my work day without it dying on my way home unless I charged it midday. Now I am running Serendipity 6.2 and unplug at 7:30am and it is now 8:30pm my time and I have 30% remaining....
I have also tried other customs roms with noticeable improvements in battery life over stock but for me Serendipity gives me the best performance and battery.
Sent from my Galaxy S Captivate with Serendipity
try apex5.1 room with tl3 modem comb
i used about 50 phone call, 2 hour websurfing, email sending, checking.
i still have 41% left, 1day 10hour 50 min.
Could I have a faulty battery? I rooted and rommed cuz of my battery life being terrible but It still is bad
Sent from my SAMSUNG-SGH-I897 using XDA App
I had the exact same issue as you. I tried Darky's 9.3 first, then Serendipity 6.2, then Cognition 4.2.1. Each had major battery drain, meaning 6-8 hours with moderate use, and even without any usage it would drain 25% over 3 hours.
Use One-Click to flash back to stock JF6, then immediate do a Master Clear from the One-Click program after it has finished booting. Obviously move everything to an external SD or the computer prior to all of this, and make sure the external SD and SIM are out when flashing.
My battery has lasted for 14 hours today, and I'm only down to 54%. This is with about 1hr 20min screen on, ~30min voice calls, and always connected via 3G/H with background sync on, weather widget, and moderate web browsing.
Current setup: Serendipity 6.2, Speedmod K13C, JK4 Modem
Trying again
I couldnt keep myself away from custom roms, how i missed tethering, the custom theming, non marketplace apps and so much more...
Im trying Dilli's 7.1.1, bump charging at the moment...
Last night I drained my battery to 5% when i finally fell asleep... 6 hours later it was at 4%. Finally it drained and would not power on at all. Not even the backlights. Plugged it in for an hour and thought to take the sim card out so i would have a phone for the hours it would take to charge. When i plugged it back in the phone jumped from approximately 10% to 40% charged...
Oh well.
I have also been bouncing around flashing diff roms like crazy. I have to say though, I am using Continuum v4 with Hardcores speedmod Kernel K13D. I have been doing pretty good on this combo. Lasts for most the day with normal use.
I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
f3liC said:
I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
Download humble 1.25 and your battery woes will be no more my son....
Will take you suggestion and try it out tonight. I dont mean to derail my own thread but is it possible that when I flashed back to stock ee2, it caused my signal to decrease even though I put gummycharged over it later? Ever since I had to reflash because of the power button issue, I noticed a decrease in signal strength (from mid 80s to high 90s). Sorry for all the questions!
danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Hi,
I saw your Humble ROM and was considering installing it to try to improve battery life as we'll.
What about your ROM conserves battery over the stock rom?
Now that p3droid released 2.3.4 I will certainly have to try it, do you plan to make a version of Humble using this new base?
Thanks for your work, I really am loving this new phone!
Ken
(Former DX afficianado)
An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?
f3liC said:
An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?
Click to expand...
Click to collapse
If you are getting that bad of battery life, go to EE4 Debloated . Flash P&J OC Kernel. and Undervolt your phone.
Whay would be causing this kind of battery life though?
f3liC said:
Whay would be causing this kind of battery life though?
Click to expand...
Click to collapse
No telling, depends on how you use your phone and what apps are running.
Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.
f3liC said:
Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.
Click to expand...
Click to collapse
I've had similar battery issues with two different Charge units running each ROM/Kernel (except GB). I also live in a weak coverage area where I average 1 to 2 bars, sometimes dropping to 0 and i'm convinced this has to be it. I had written this idea off initially because I previously had ATT and the same weak coverage with them, but nowhere near the same abnormal battery drain...so I guess there must be a difference between the way CDMA and GSM operate in this respect? I'm in a 3G only area and keep the phone locked to CDMA/Auto also.
danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Coming from the fascinate I honestly think the battery life is better. Although I turned lte off since we don't have any coverage for it yet. My mind will probably change when we get it. Running stock ee4 rooted with voodoo kernel. My father is running the same thing and also came from the fascinate, he completely agrees.
Sent from my SCH-I510 using Tapatalk
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
I had really bad battery life on my phone running the stock rom and gummycharged. With the phone sleeping and only data on, I was losing at least 5% an hour.
I switched to Humble a week ago and my battery life is exceptional. I am ususally looking at 24 hrs with 4g on and longer with it off.
If you do a lot of browsing and keeping your screen on, your battery is going to burn quickly. No matter what ROM you are using. If it's draining a lot of battery in sleep, flash Humble.
danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Dude, this isn't the fix. I'll flash Humble 1.25 right now and prove to you that it doesn't fix battery issues. Yes, it's less of a battery hog than the other available ROMs, but flashing Humble 1.25 will not fix your battery gremlin.
I wish Danalo, imnuts and the other gurus would spend more time figuring out this battery gremlin. Charging your battery to 100% then wiping battery stats through CWR doesn't work either. I've tried it countless times.
OP, here's another thread regarding the battery issues many people are experiencing - http://forum.xda-developers.com/showthread.php?t=1145161
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Don't give up so soon. The battery life on the Charge can be amazing and I know from experience. My experience also shows that there are funky battery issues that pop up when flashing various crap. Flashing an Odin bundle has not worked for me, at all. Wiping battery stats has not worked.
I was running GummyCharged 1.5 with the PBJT kernel and voodoo enabled and got 17+ hours of medium-hard use EASILY. Since then, I flashed the original GB leak, Gummy, Humble, Stock... I cannot figure out what the heck is going on, my battery life is still crap.
f3liC said:
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
It really sounds like signal issues to me. My Charge handles weak mobile signals better than my Thunderbolt, but any cell phone will really crank up the juice draw looking for a tower if it can't find one. In my north county office, my Thunderbolt will drain 25% per hour if I don't keep it near the window where it can get a better signal.
You need to post a lot more details.
Are you on wifi or mobile data? Are you 3G or 4G area? How strong is your 3G/4G signal?
Have you dug into the battery use screens to see what's up?
Grab Spare Parts from the Market if your ROM doesn't have it and look into it's battery statistics...things like wake-locks will really kill the phone.
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.
If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App
mbh87 said:
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.
Click to expand...
Click to collapse
And no.... im not pimping downloads. Lol
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Sent from my SCH-I510 using XDA Premium App
danalo1979 said:
If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App
Click to expand...
Click to collapse
Then what would we ***** about?
danalo1979 said:
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Click to expand...
Click to collapse
I've done this countless times to no avail. I'm going to flash Humble 1.25 again in a bit, but it definitely didn't fix the battery issue earlier today when I flashed it. Yes I wiped battery stats. Yes the battery was at 100%.
I'm going to try the ridiculous procedure laid out in this thread - http://forum.xda-developers.com/showthread.php?t=1152088
Has anyone tried to see if there is a difference battery life wise between the stock At&t radio vs using the Rogers radio? I have been running the Rogers radio for at least a month and haven't had any issues with calls or data. I have been having baterry issues within the past couple of weeks and was thinking of using odin to stock to wipe everything and start from scratch to see if battery life would be better.
No problems here with the R radio. I'm almost back to battery life similar to what I had on the Nexus S. I've turned off LTE since I can't see any real benefit other than nifty speed tests. My 3G hits 12Mbs and that good enough. LTE eats battery. Getting on WiFI when possible also helps vs cell data. I've got 8 hours with 66% left right now. I can make 20 hours if I need to.
Are you stock or on a custom ROM? I just installed Alien and wiped battery stats so I'm going to try this out first. I formatted my system and wiped everything. Only thing I didn't do is TiBu any apps. I had a problem with my Atrix when I'd restore apps from TiBu, something would eat up the battery like crazy, but when I restored just the app it was ok.
I'm stock rooted and my battery life is fantastic..
I could probably get 2 days
I'm running custom based on Rogers rom. No CIQ or other fluff. Agreed that restoring across roms isn't always best. Normally not a problem but if you can just install fresh that eliminates that as a problem later. Give the battery stats a few days and charges before giving up. The first few charges with a new rom and battery stats reset never look as good as a few days later.
Here is the thing, i'm enjoying the whole end of ghost calls thing BUT since I flashed the 21e ROM, my battery drainage is 'over the roof', i lose almost 20 to 30% in 2 hours of standby, and its been happening with both promethius and bluekernel. I'm on Promethius 1.4+ ROM.
I've deleted system apps, like I've done since ThiaiZ ROMS, which I'm missing now but no significant increase in battery life.
Any thoghts? I'm guessing its not just me, I've seen similar complaints in other topics but no resolution.
Same here, I think that is wi-fi related, since I've changed the wifi sleep policy to "When the screen is off" my battery life is ok....
I think there are a bunch of things that are killing the battery:
- screen brightness / auto brightness (not working properly, no change when less than 50% brightness?? I have mine set to auto but it don't feel right...)
- wifi (definitely a bunch of issues since day 1 of this phone, I leave mine off when screen off too even though its annoying waiting for connection)
- data (i've noticed using apps like 2x battery, or juice defender can help a lot which disables data when screen is off)
- poorly programmed LG integrated software... I freeze as many LG apps as possible in system using Titanium Backup, helps a bit too.
- incorrectly calibrated battery, re-calibrate with CWM. Do a full charge, then reset battery stats in CWM and let the phone fully drain till shut down and then re-charge non-stop to 100% again. Then its properly calibrated.
Hope any of that helps, it seems to have helped me a bit. I can get between 18-30 hours of mixed use, but more to the light/standby side.
vitorcruzbr said:
Here is the thing, i'm enjoying the whole end of ghost calls thing BUT since I flashed the 21e ROM, my battery drainage is 'over the roof', i lose almost 20 to 30% in 2 hours of standby, and its been happening with both promethius and bluekernel. I'm on Promethius 1.4+ ROM.
I've deleted system apps, like I've done since ThiaiZ ROMS, which I'm missing now but no significant increase in battery life.
Any thoghts? I'm guessing its not just me, I've seen similar complaints in other topics but no resolution.
Click to expand...
Click to collapse
Actually the 21E stock ROM/kernel has better battery life than any previous GB or Froyo stock ROM, like many people have already reported here. I'm loosing only 1-2% overnight on standby, so if you lose 20 to 30% in just 2 hours of standby, then the problem is not the 21E but something else.
The best way to check is the problem is related to the stock or custom 21E ROM/kernel, is to go back to the stock 21E. If this is too time consuming, you could follow the recommendations of crazycage, or check/disable any apps that cause battery drain (like, turn off background sync or apps that connect periodically to the net, like mail, news feeds etc)
Thanks guys, but the drainage happens even after these steps, with this phone I have became used to doing all these steps after flashing a new rom, i delete or freeze most of the system apps, i only activate wifi when i use it and background data is off almost all the time.
The only thing I'm used to that is not good for battery is keeping the brightness at maximum, but on older roms battery life was ok, I could get It through the day with no major issues.
Do anybody have the stock 21e kernel in a flashable package? 'Cause in the past two weeks I have flashed and reflashed it over and over to get it to work and flashing it again would really be a pain in the a.
vitorcruzbr said:
Thanks guys, but the drainage happens even after these steps, with this phone I have became used to doing all these steps after flashing a new rom, i delete or freeze most of the system apps, i only activate wifi when i use it and background data is off almost all the time.
The only thing I'm used to that is not good for battery is keeping the brightness at maximum, but on older roms battery life was ok, I could get It through the day with no major issues.
Do anybody have the stock 21e kernel in a flashable package? 'Cause in the past two weeks I have flashed and reflashed it over and over to get it to work and flashing it again would really be a pain in the a.
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your battery may not be holding a charge I have heard of others that had bad battery
sent from my acidhazard thrill
wayno140 said:
your battery may not be holding a charge I have heard of others that had bad battery
sent from my acidhazard thrill
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But it was ok before 21e
vitorcruzbr said:
Thanks guys, but the drainage happens even after these steps, with this phone I have became used to doing all these steps after flashing a new rom, i delete or freeze most of the system apps, i only activate wifi when i use it and background data is off almost all the time.
The only thing I'm used to that is not good for battery is keeping the brightness at maximum, but on older roms battery life was ok, I could get It through the day with no major issues.
Do anybody have the stock 21e kernel in a flashable package? 'Cause in the past two weeks I have flashed and reflashed it over and over to get it to work and flashing it again would really be a pain in the a.
Click to expand...
Click to collapse
You mean that you've re-flashed a clean stock 21E ROM/kernel and still have battery drainage without deleting/freezing apps or installing new ones? That's strange because most people actually report better battery life with the 21E than any previous ROMs.
If you think that it's not a faulty battery like wayno140 suggested, you could go back to an older GB ROM to have a test.
No, only did first boot on stock 21e, and flashed Promethius, deleted system apps and did all the battery-friendly steps but still no improvement