Hi,
I've been flashing roms onto my phone for months now and what I've realised is that the battery life is always awful. I hardly ever get past 10 hours, with just 1 hour of screen on time as my battery drains in stand by. I've tried cm7, cm9, perfect galaxy, miui, stock and many more, but my battery life always seems to be the same. Currently I'm running cmiui (latest version) and still battery is draining very fast. I read about people having amazing battery life on a daily basis.
My current battery life drains by 1% every 2-3 minutes of screen on time and about 5% of drain when in deep sleep or stand by an hour, sometimes even more. I use betterbatterystats, cpuspy and gsapp to monitor my battery but nothing suspicious occurs. Usually my 'awake' time tends to be 50% higher than my screen on time according to betterbatterystats, however all the wake locks tend to be kernel related. Changing kernel doesn't change this either. I've literally tried everything, installing several kernels, modems and calibrating my battery every time I flash a new rom.
Also what I realised is that my phone frequently overheats near the camera and even sometimes reaches 50°c.
I would appreciate it if anyone could help me on this topic. It is really frustrating that I cannot get through a day of even light use of my phone, which makes it almost unusable as I'm always concerned about my battery. I've also tried several batteries, so the problem doesn't lie with the battery.
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MikeIliescu said:
Hi,
I've been flashing roms onto my phone for months now and what I've realised is that the battery life is always awful. I hardly ever get past 10 hours, with just 1 hour of screen on time as my battery drains in stand by. I've tried cm7, cm9, perfect galaxy, miui, stock and many more, but my battery life always seems to be the same. Currently I'm running cmiui (latest version) and still battery is draining very fast. I read about people having amazing battery life on a daily basis.
My current battery life drains by 1% every 2-3 minutes of screen on time and about 5% of drain when in deep sleep or stand by an hour, sometimes even more. I use betterbatterystats, cpuspy and gsapp to monitor my battery but nothing suspicious occurs. Usually my 'awake' time tends to be 50% higher than my screen on time according to betterbatterystats, however all the wake locks tend to be kernel related. Changing kernel doesn't change this either. I've literally tried everything, installing several kernels, modems and calibrating my battery every time I flash a new rom.
Also what I realised is that my phone frequently overheats near the camera and even sometimes reaches 50°c.
I would appreciate it if anyone could help me on this topic. It is really frustrating that I cannot get through a day of even light use of my phone, which makes it almost unusable as I'm always concerned about my battery. I've also tried several batteries, so the problem doesn't lie with the battery.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Everytime you install a new Rom/Kernel you have to wait for it to settle down (About 2 Charging cycles). If I flash a new Rom to my device Batterydrain is very high too at the beginning. What you can do is install a Rom and a kernel which supports undervolting and underclocking.
I use Resurrection Remix ICS 2.6.1 with the Siyah 3.5.2 Kernel with this Voltage/Clock settings (LESS AGGRESSIVE UV VALUES with -50mv and not -75mv undervolting):
http://forum.xda-developers.com/showpost.php?p=26755476&postcount=850
With this settings I get 16 - 18 hours easily and with about 2 1/2 -3 1/2 hours of screentime and also about over 4 hours of listening music and doing other stuff of course.
Everytime you undervolt/underclock make a Nandroid backup!
Thanks, I've heard about the battery charging cycle before, I'm new to cmiui, flashed it yesterday but I've had cm9 on for about two months and the battery life was horrendous. I will try the undervolting and see how that goes
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Strange, I am on stock and can make almost whole day with 3-4h screen time. Sounds like some issue either with battery or with the phone.
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get a 2000 mha battery over ebay
I have been used 2000mah battery, miui 2.8.3 + siyah 4.0.1 kernel, no serious battery life issue :good:
I have a 1800mah battery, its actually not that much better than the stock battery, but doesn't the 2000mah add extra thickness?
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Yes it does.
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MikeIliescu said:
I have a 1800mah battery, its actually not that much better than the stock battery, but doesn't the 2000mah add extra thickness?
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Click to expand...
Click to collapse
Yes but it`s no thicker than your speaker part of the phone.
I'll have a look at it, I've re calibrated my battery this morning and ismt half bad so far. Its 9 o clock now and sill have 38% left with about 1.5h of screen on time, phones been unplugged for about 10 hours. I've used the undervolt setting as suggested but still loose about 4% of battery in stand by each hour. On comparison my mums iPhone 3gs looses about 1% every 3 hours. Surely the android battery isn't that much worse
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If it occurs with every rom you have could it be app related, wiggets or syncing too frequently?
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That's what I thought but I've analysed my apps with betterbatterystats and gsapp, nothing suspicious came up and wakelocks are always kernel related. I've tried several kernels as well
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MikeIliescu said:
That's what I thought but I've analysed my apps with betterbatterystats and gsapp, nothing suspicious came up and wakelocks are always kernel related. I've tried several kernels as well
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Click to expand...
Click to collapse
Get cpu spy from the play store to see if your device is deep sleeping. Also, you can try 1900mah anker battery. I got two and a charger off eBay for $25 can. Definitely a good deal
Sent from my Nexus 7 using xda premium
Mysterious indeed, all I can suggest is what I would try which is to give a custom rom call slim rom a go after full wipes and format system. Its a stripped down rom and always gives good battery life as it's so lean. Hope you find a fix soon all the best.
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maybe your battery is bad i bought a great 2500mah battery on ebay http://www.ebay.com/itm/2500mAh-Ext...ccessories&hash=item4ab6494de0#ht_2481wt_1163
that combined with the rom OLLO MONSTER gives me awesome battery life
I might have to invest in a new battery. As I said before I've upgraded to a 1800mah battery and using that but the difference is minimal. Also I have CPU spy and it goes into deep sleep quite a bit, awake time however according to betterbatteystats tends to be about 30-40% higher than screen on time. And i'll try the suggested rom after I've given this one a few more days on the undervolting
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MikeIliescu said:
I might have to invest in a new battery. As I said before I've upgraded to a 1800mah battery and using that but the difference is minimal. Also I have CPU spy and it goes into deep sleep quite a bit, awake time however according to betterbatteystats tends to be about 30-40% higher than screen on time. And i'll try the suggested rom after I've given this one a few more days on the undervolting
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Click to expand...
Click to collapse
For BBS, anything over 1% is something that needs to be fixed. Keep in mind you need a good sample time (like over 5hrs)
Sent from my Nexus 7 using xda premium
MikeIliescu said:
I might have to invest in a new battery. As I said before I've upgraded to a 1800mah battery and using that but the difference is minimal. Also I have CPU spy and it goes into deep sleep quite a bit, awake time however according to betterbatteystats tends to be about 30-40% higher than screen on time. And i'll try the suggested rom after I've given this one a few more days on the undervolting
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Click to expand...
Click to collapse
Hmm looks normal, I would get the 2000 mah Samsung Original Battery because 10 hours and already on 38% battery is not so good in my opinion.
kilometers4 said:
For BBS, anything over 1% is something that needs to be fixed. Keep in mind you need a good sample time (like over 5hrs)
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
I've taken a few screenshots of bbs, somehow the kernel wake lock is completely empty which is odd
Also I only need the battery to last about 15h with 3-4h of screen on time to get me through the day!
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MikeIliescu said:
I've taken a few screenshots of bbs, somehow the kernel wake lock is completely empty which is odd
Also I only need the battery to last about 15h with 3-4h of screen on time to get me through the day!
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Click to expand...
Click to collapse
Well that looks decent. Do you have key press sounds and lock screen sounds off? that could cause audioout_1 wakelocks
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Related
Hey guys,
I just rooted my GS2 and am loving it, except for one thing that has seemed to change... battery life.
It is really draining badly with very light usage. For example, it went from 100 to 70 in about 7 hours, and I was only actually using it for maybe 45 minutes in total - the rest was in sleep mode.
Should I use the "Battery Calibration" app from the Market? Will it really help?
Also, my battery stats seem to report the phone as "Awake" and "Screen On" a lot of the time, even when I'm not using it...
What should I do?
I'll post a couple pictures of my battery stats tomorrow so you can better understand what I'm talking about...
Sent from my GT-I9100M using XDA Premium App
100-70 in 7 hours I would say its really good battery considering mine
you can try by finding out the services running in the backgound
You can also try using Juice defender (from market). have this for 2-3 days then check
amandureja said:
Hey guys,
I just rooted my GS2 and am loving it, except for one thing that has seemed to change... battery life.
It is really draining badly with very light usage. For example, it went from 100 to 70 in about 7 hours, and I was only actually using it for maybe 45 minutes in total - the rest was in sleep mode.
Should I use the "Battery Calibration" app from the Market? Will it really help?
Also, my battery stats seem to report the phone as "Awake" and "Screen On" a lot of the time, even when I'm not using it...
What should I do?
I'll post a couple pictures of my battery stats tomorrow so you can better understand what I'm talking about...
Sent from my GT-I9100M using XDA Premium App
Click to expand...
Click to collapse
I use battery calibration everytime I flash a new Rom in order to clean battery stats and fake information from the previous Rom...I'm sure it helps...than maybe you can try Betterbatterystat from the market (I think there is also a thread somewhere in xda forum) to se if you have wakelocks that drains your battery even when on sleepmode...
Sent from my GT-I9100 using Tapatalk
Is it normal that my battery drops a precent in around 2 hours?
revoulution rom
i heard people with some roms that droped 2 precent in 2 days so it doesnt semms legit
i think its normal but what kind of kernel do you have ?
just ask the people what they use
I drop one percent in 5 mins if screen and 3g on.
Drop one percent if in one hour if phone is idle..
I think my phone is worse
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Sorry, 2% in two days is imposible on any smart phone. Do what ever you like, but you won't get that much. This would mean 100 days (even in standby mode) in one charge. Think...
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Cangir said:
i think its normal but what kind of kernel do you have ?
just ask the people what they use
Click to expand...
Click to collapse
siyah kernel 2.0
darkinners said:
I drop one percent in 5 mins if screen and 3g on.
Drop one percent if in one hour if phone is idle..
I think my phone is worse
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
dude i had the same problem like yours
i suggest you do calibration and change your rom
MS. said:
Sorry, 2% in two days is imposible on any smart phone. Do what ever you like, but you won't get that much. This would mean 100 days (even in standby mode) in one charge. Think...
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
ok im using set cpu now and i idid when my screen off the freq will be 200MHZ and i thought it will consume less battery and i lost 4 precent during the night its 9am here right now
and its pretty frustrating anyway to keep like 2 precent on the night?
My battery performance is not stellar either. I can get about a day (24) hours of moderate use (in this case, i mean the device is in moderate use about 12 hours, while it is idle the rest of the time).
2.3.5 is supposed to drastically improve battery life on the stock version though.
juice defender has actually been a big help for my batter and everyone i've shown it too, like anything android it takes some tweaing but once it's done it's well worth it
i changed the rom to check rom v5.5 with siyah kernel 2.0 i just overclock the CPU and underclock when not in use it saves battery
my question is now if anyone here uses this rom and can find me some themes
Stock battery
I have done everything from Autostarts to managing my processes constantly. I played hanging with friends, got on here, and texted.
I posted an updated battery usage. I have lowest brightness, lowest image brightness, 15s timeout, etc.
i would probably switch to conservative governor vs powersave
This isn't typical battery life
I'd advice you to use better battery stats and cpu spy to se what's causing your battery to drain so quickly
Sometimes I notice "back up" in bbs, and this casus my phone to drain within a day
Hanging with friends does consume a lot of battery, but I play it too, and this does not cause that much drainage..
I have ICScrewed and with a heavy usage, my phone usually last for 1.5 ~ 2 days
With moderate call/text and idle, it lasts for 4 days.
jc830 said:
This isn't typical battery life
I'd advice you to use better battery stats and cpu spy to se what's causing your battery to drain so quickly
Sometimes I notice "back up" in bbs, and this casus my phone to drain within a day
Hanging with friends does consume a lot of battery, but I play it too, and this does not cause that much drainage..
I have ICScrewed and with a heavy usage, my phone usually last for 1.5 ~ 2 days
With moderate call/text and idle, it lasts for 4 days.
Click to expand...
Click to collapse
Dang that is high! Are you sure about that? :O At medium usage /w unnamed i only get about 18 hours total. It was similar with ICScrewed too
Holy crap. I'll look into better apps. Could UnNamed be the culprit? Or the kernel?
Should I buy a new battery? The life waslike this for the few days I was stock, I think
I average around 17hr, on a good day I'll get 20h. I also recommend better battery stats, great app to see what's keeping your device from going to deep sleep.
Another great app is lbe privacy guard, you can deny certain apps and games some of the permissions they want (disabling GPS on those that really don't need it etc).
I'm on unnamed so that isn't the issue. Might be the kernel, just check the kernel wake clock in better battery stats to check. I'm on entropy's latest dd, while i do feel i got better battery life on the kernel with the latest unnamed ROM I'm not to sure if it's the kernel or something else.
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glad4pie said:
Dang that is high! Are you sure about that? :O At medium usage /w unnamed i only get about 18 hours total. It was similar with ICScrewed too
Click to expand...
Click to collapse
Well, I guess it depends on how you define heavy and moderate... Haha
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jc830 said:
Well, I guess it depends on how you define heavy and moderate... Haha
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Click to expand...
Click to collapse
I'd be curious to see your graph. My battery is dead now, but tomorrow I'm going to get on and upload Better Battery Stats to my phone. I would've paid for it on the Market, but I couldn't find it when I searched. I'm curious to see what other people think. I switched all Powersaves to Conservative. Is OnDemand bad for my CPU as it constantly trips from 500MHz to 1.2GHz? Should I consider going to 1GHz?
jc830 said:
This isn't typical battery life
I'd advice you to use better battery stats and cpu spy to se what's causing your battery to drain so quickly
Sometimes I notice "back up" in bbs, and this casus my phone to drain within a day
Hanging with friends does consume a lot of battery, but I play it too, and this does not cause that much drainage..
I have ICScrewed and with a heavy usage, my phone usually last for 1.5 ~ 2 days
With moderate call/text and idle, it lasts for 4 days.
Click to expand...
Click to collapse
I have a hard time believing that. I've done everything I can to optimize my phone and reduce wakelocks and battery drain, and I still never get more than 20 hours on a good day, and that's with moderate usage.
How do you define "heavy usage"?
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mattdm said:
I have a hard time believing that. I've done everything I can to optimize my phone and reduce wakelocks and battery drain, and I still never get more than 20 hours on a good day, and that's with moderate usage.
How do you define "heavy usage"?
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
I agree. This is my latest battery cycle of what I consider "moderate" use
What I'd consider light usage (about 10 minutes of voice, between 5-10 minutes of cellular data, 10-15 texts, and about 20 minutes of total screen-on time) I get about 35 hours.
I have managed to almost completely drain my battery in about 4 hours though... Thanks Game Dev Story!
mattdm said:
I have a hard time believing that. I've done everything I can to optimize my phone and reduce wakelocks and battery drain, and I still never get more than 20 hours on a good day, and that's with moderate usage.
How do you define "heavy usage"?
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
I will make sure to post up my graph when it does drain
I think my definition of heavy usage is moderate use for most people..
Here's the link to bbs http://forum.xda-developers.com/showthread.php?t=1179809
I realized I forgot to turn off data when I'm not using it, but I installed better battery stats and I didn't really see any wake locks. Should I try a different kernel? Any opinions on an efficient one? NOTE: I already got the yellow triangle for using the Odin way, so I'm fine with doing whatever to this phone.
I added my better battery stats shots. I guess today would be called a very light to light day.
wrathofnero said:
I realized I forgot to turn off data when I'm not using it, but I installed better battery stats and I didn't really see any wake locks. Should I try a different kernel? Any opinions on an efficient one? NOTE: I already got the yellow triangle for using the Odin way, so I'm fine with doing whatever to this phone.
I added my better battery stats shots. I guess today would be called a very light to light day.
Click to expand...
Click to collapse
I see two very top wake locks have kept your phone from sleeping for an hour..
That is a significant amount.
Also, use cpuspy to see how hard it's been working.
I would try to get rid of those top two wake locks...
Oh crap! I didn't see them until you brought it to my attention. That explains some of the idle drain. I'll look into CPU Spy. You guys have been so helpful!
Your kernel wakelocks had no data, probably due to BBS being a fresh install. A full charge should set a proper reference point.
jc830 said:
I see two very top wake locks have kept your phone from sleeping for an hour..
That is a significant amount.
Also, use cpuspy to see how hard it's been working.
I would try to get rid of those top two wake locks...
Click to expand...
Click to collapse
I don't think anything can be done about system logging as far as I have found.
promiseofcake said:
I don't think anything can be done about system logging as far as I have found.
Click to expand...
Click to collapse
If something's holding that many log wakelocks, something might be spamming a log somewhere.
I can't find anything to help with those two either. Or would seem that the keyguard might have something to do with text messages, but I can't see anything that would spam the log. Where might I be able to read this log?
Also, I'll post my CPU spy stats toward the end of the night. It's looking like it spends most of its time at 500MHz.
@wrathofnero You can remove the triangle with a usb jig. Worked for me.
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I decided to make a thread to see what kind of battery life and performance people are getting with their devices. Please include what build you're on, the kernel you're using, any special apps you're using, and any comments you have about your setup.
Guess I'll start..
Build: The Base 0.7.3 (4.0.4)
Kernel: sk8's 2.2 ICS kernel
Apps: Android Tuner Pro and SetCPU
I use Android Tuner for voltage control and governor settings. SetCPU is used for profiles to adjust the CPU frequencies for different apps. As well as a lot of tweaks I've applied. Forgot to take a screenshot before I charged my phone, but I'm able to push 36hours with about 6 hours of screen on time.
Sent from my LG-E970
Pure stock rooted, locked bootloader, frozen bloatware. 18000+ on average Antutu, over 7000 Quadrant average. Battery goes from 12 hours to 27 hours, my two broadest 'average' ranges. 12 had moderate use, 27 had light use, data off, power saver on.
Sent from my LG-E970 using xda app-developers app
Make sure you also post your screen on time like the OP. Your ROM, kernel, tweaks, etc are important, but screen on time is the closest we can get to a constant variable.
On 12 hours, screen on was about 3 hours. 27 it was about 45 minutes. I've deleted the screenshots though.
Sent from my LG-E970 using xda app-developers app
Great, Nice work
On ginsix v1.5. Only sync I have is my Google account and gps always on. Brightness set to 60%. I usually get 4 hours of on screen time and up to 30 hours depending on use.
Sent from my LG-E970 using xda app-developers app
I am running rooted Stock ROM/Kernel (waiting for official JB update) with unlocked bootloader. I have been recieving terrible battery life though! I've tried calibrating it and still had issues. Besides that, I get like -5% every 7 minutes of low-mild screen on use even with Eco, Powersave, and underclocked at 384 MHz all enabled. About -10% every hour with the screen off. :/ I'm going to go ahead and factory reset/wipe and restore my apps. Hopefully this will solve my jacked up battery.
EDIT:
I think the battery has improved just a tiny bit after factory resetting. It not exactly satisfactory (about -9% every hour with screen off), but I think that might be normal for smartphones, right?? Under battery stats, it shows "Android OS" as using over 40% of the battery. I don't think that's normal.
SeekerofLight.iz said:
I am running rooted Stock ROM/Kernel (waiting for official JB update) with unlocked bootloader. I have been recieving terrible battery life though! I've tried calibrating it and still had issues. Besides that, I get like -5% every 7 minutes of low-mild screen on use even with Eco, Powersave, and underclocked at 384 MHz all enabled. About -10% every hour with the screen off. :/ I'm going to go ahead and factory reset/wipe and restore my apps. Hopefully this will solve my jacked up battery.
EDIT:
I think the battery has improved just a tiny bit after factory resetting. It not exactly satisfactory (about -9% every hour with screen off), but I think that might be normal for smartphones, right?? Under battery stats, it shows "Android OS" as using over 40% of the battery. I don't think that's normal.
Click to expand...
Click to collapse
o_o
My AndroidOS is also higher than 40% but I only lose 1-2% per hour with the screen off. Have you tried FD toggle?
SeekerofLight.iz said:
I am running rooted Stock ROM/Kernel (waiting for official JB update) with unlocked bootloader. I have been recieving terrible battery life though! I've tried calibrating it and still had issues. Besides that, I get like -5% every 7 minutes of low-mild screen on use even with Eco, Powersave, and underclocked at 384 MHz all enabled. About -10% every hour with the screen off. :/ I'm going to go ahead and factory reset/wipe and restore my apps. Hopefully this will solve my jacked up battery.
EDIT:
I think the battery has improved just a tiny bit after factory resetting. It not exactly satisfactory (about -9% every hour with screen off), but I think that might be normal for smartphones, right?? Under battery stats, it shows "Android OS" as using over 40% of the battery. I don't think that's normal.
Click to expand...
Click to collapse
That's the main reason why I use The Base. On top of being speedy, there a "fix" option for fast dormancy which helped me tremendously seeing as I rarely use LTE. It's like.. It disables it when not in use, but enables it when needed.
Sent from my LG-E970
So what is defined as "On Screen time"? I charged my phone all night and this morning unplugged the phone and turned on my screen and told it to not go turn off ever. I was hoping to test out the heating issue, as the previous version would start to get hot after half an hour of screen time. I left it sitting on my desk all day and after about 7 hours it ran down to 15 percent but when i look at "on screen time" it shows only about 5 hours (it should be at 7 hours as i started this when i got to work 7 hours ago...). I literaly just left my phone on and didn't interact with it at all, all day. Seems a whole lot better to me than the phone i got this as a replacement for. But was just wondering what is calculated for on screen time.
BTW: This is stock phone, just pulled out of the factory box. Not rooted, not unlocked, don't even have any accounts tied to it or moved any icons around.
It's best to track battery life/screen on time with every day use. Or for those that are heavy users, with games and such. Just leaving my phone on idle with screen on I can get about 11 hours as all my cores but 1 go offline while one remains at 384MHz.
Sent from my LG-E970
I'm completely stock after using LGNPST after soft bricks and my battery life is like 6 hours for a 8 hour shift at the job
Sent from my Nexus 7 using xda app-developers app
I was having crap battery life on the stock Rom only unlocked by freegee. Now on the Canadian jelly and life is good again.
Sent from my LG-E970 using xda app-developers app
After six hours my batter is at 87%.. this is much better than the five percent per hour I was getting before flashing jb. It was already doing well as far as I'm concerned... in line with my galaxy nexus using an extended battery... very happy
Sent from my LG-E970 using XDA Premium HD app
I'm on slick ROM, screen at 63% brightness, constantly use my phone for gaming , fb, and browsing the internet and I usually get at least 10 hours of use before I get to about 15% , I have never had any battery life issues with this phone. I don't talk on it a lot, but constantly text throughout the day. I can let this phone sleep all night and maybe be at most 96% when I wake up as well
Sent from my LG-E970 using xda app-developers app
Neroga said:
That's the main reason why I use The Base. On top of being speedy, there a "fix" option for fast dormancy which helped me tremendously seeing as I rarely use LTE. It's like.. It disables it when not in use, but enables it when needed.
Sent from my LG-E970
Click to expand...
Click to collapse
You can do the fast dormancy fix, even on stock ICS. There's a thread, in this section, that's dedicated to it (there's even an app, if you are unsure of doing the code submission that's outlined in the thread). It makes a HUGE difference, in my battery life.
dbgeek said:
You can do the fast dormancy fix, even on stock ICS. There's a thread, in this section, that's dedicated to it (there's even an app, if you are unsure of doing the code submission that's outlined in the thread). It makes a HUGE difference, in my battery life.
Click to expand...
Click to collapse
It's really easy. My rom has it as well.
Using a Note 2 the last few days. Turned on the OG yesterday to take some pics of it as I 'm trading the note 2 for HTC butterfly. Just noticed this a few minutes ago........
Phone is rooted, stock AT&T rom,
Pretty sweet. This is my favorite phone of all time.
Before anyone jumps all over me, I realize the phone has been in standby for all but 5-10 mins of this time. Still can't believe how little battery it has used on standby.
I hate to tell you maddog, but there's no way that's accurate.
Sent from my Nexus 7 using Tapatalk HD
Nastybutler said:
I hate to tell you maddog, but there's no way that's accurate.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
It does seem to good to be true. I've unplugged it at night before and when getting up 7 hours later noticed it was still at100.
Even thou I agree, this phone has great battery life on stand by.
Sent from my SGH-I317M using Tapatalk 2
Hey guys
Yesterday my phone was acting up. Badly.
I got to 50% with 1hour and 30 minutes screen on time. Absolutely terrible.
So i decided to reflash the firmware using PC companion. When finished it seemed fine. 2.5 hours with 10% left.
Now its.. I don't even know. Have a look yourselfs
J
Sent from my Nexus 7 using xda app-developers app
Eh, what can I say, most battery monitors out there are horrible at keeping track of things, something you may have noticed if you have a laptop. Android's battery monitor is know to be absolutely worthless, and it lives its own life.
Remember that it takes a couple of charging cycles to get it back on track when you flash ROMs. And you should probably enable STAMINA if you had horrible battery life before you flashed. There's probably an app that has gone rouge, so check your data usage and download a wakelock detector.
Sent from my C6833 using Tapatalk
What previous poster said.
Flashing ROM's is not the way to fix inaccurate battery reporting. It will probably just add more to the confusion as flashing ROM's is usually the reason for inaccurate battery readings.
What you need to do at this point is to run the phone completely dry once so it dies and then fully charge it. Then it should be fixed right away. Otherwise just let it be and it should be fixed in a couple of charges. Remember that running the phone completery dry too much aint good for the battery. Though they have built in protection so they never get completely dry. The real dangerous thing is to leave the phone totally dry without charge for longer amounts of time. That surely will damage your battery.
Yeah I had use stamina. It was weird sometimes I could get 6hours screen on time and other times 3
I downloaded wake lock detector and there was a wake lock that woke up the device over 20000 times. It seems to be gone now after re flashing.
J
Sent from my Nexus 7 using xda app-developers app
I'll give it a whirl. I used to do that with my s3 but read it was bad for the phone so I stopped
J
Sent from my Nexus 7 using xda app-developers app
JackHanAnLG said:
I'll give it a whirl. I used to do that with my s3 but read it was bad for the phone so I stopped
J
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Don't do it too often though.