I haven't actually looked at the battery driver or even the kernel for that matter, but does it specifically state the cutoff voltages for charging the battery? If it does, we should compare those to what the phone is charging the battery to when the phone is off and make them match. Hell if you want to live on the wild side bump it up another .05 - .075V or so...
Just a question.....but do you know what you are talking about??
Froyo seemed to solve the charging 'problem' for me, then again I never had a charging problem.
Qazme said:
Just a question.....but do you know what you are talking about??
Froyo seemed to solve the charging 'problem' for me, then again I never had a charging problem.
Click to expand...
Click to collapse
Erm, how did it fix it? We still have that problem.
I believe what he is talking about is modifying the kernel to allow the battery to fully charge when powered on rather than leaving the "buffer" which requires the bump charge to get the extra 10% or so out of the battery. I'd definitely like to see this as well, but I've found performing the recalibration did help a bit.
Disclaimer: I'm a noob and don't know ****!
However, it would seem if htc (or google), put code in the kernel to prevent the phone from charging to 100% while turned on, I'm sure they had good reason. My guess would be to keep the phone from over heating.
It would seem that if the phone is on and draining the battery, but at the same time you're trying to charge the battery, achieving that last few percent might be difficult and could take considerable more time, and thus getting hotter.
Just a guess though.
________________________________
Unrevoked forever
SkyRaider 2.5.2 Sense
Hrdra kernel ocuv_ov_v10 (#2)
I'll look at the battery driver when I get home (currently at work), but I have seen devices where charging limits were invoked directly in the kernel. These could be modified if they are.
On the issue of heat, manufacturers play it VERY safe. It looks bad if someone is charging their phone in their car during the summer and the battery cooks off in the passenger seat. I'd be fairly comfortable pushing the battery to a little bit higher voltage than it is right now.
What about the charging SPEED? Myself and several others have noticed that Froyo ROMs charge at a much slower rate, plugged in to ac power, compared to 2.1 Rom. For me, it takes about twice as long to charge. Is this something that could also be addressed with a kernel fix? I literally went from being able to charge from ~10% to full in about 90 mins, to now taking about 4 hours on Froyo.
bast525 said:
What about the charging SPEED? Myself and several others have noticed that Froyo ROMs charge at a much slower rate, plugged in to ac power, compared to 2.1 Rom. For me, it takes about twice as long to charge. Is this something that could also be addressed with a kernel fix? I literally went from being able to charge from ~10% to full in about 90 mins, to now taking about 4 hours on Froyo.
Click to expand...
Click to collapse
The 2.15 radio probably broke the phone's ability to differentiate between the wall-charger (fast) and normal USB (slow). The reason I say "radio" and not "kernel" is because it charges slowly when powered off as well. Hopefully the radio included in the upcoming OTA will fix this.
I had the slow charging problem on the 2.05 radio as well but doesn't change much about what's being said about a potential fix.
Anyone able to confirm that this (something in the radio) is the reason?
Hope the OTA comes soon so I can get back to recharging in a timely fashion.
Sent from my Dinc using XDA App
Qazme said:
Just a question.....but do you know what you are talking about??
Froyo seemed to solve the charging 'problem' for me, then again I never had a charging problem.
Click to expand...
Click to collapse
Apparently you are one of the users that were lucky enough not to have this issue. This thread is not for you. Move on. And btw, Froyo did not fix this problem. Again, nothing for you to see here, move on.
For the rest of us who are interested in solving this issue we will continue to put ideas out there in the hope that a smart one figures this out. Until then, we will keep reading about how fortunate some people are and how some other unfortunate people are willing to work on this. Thanks OP.
the difference between bump charging and not never really affected me because the phone charged so damn fast, that just plugging it in for a few minutes helped out a ton. but now with froyo, it literally take 5 to 6 times longer to charge to 100%. its ridiculous
i got sick of letting my phone charge overnight then 10 min after i unplug it in the morning its down to 92%. and unless you charge it while the phone is off it rapidly drops all the way down to like 80% before it starts decreasing normally, at least for me. so i started turning it off and topping it off in the mornings for about 30-45 min before i would leave for work, doing this i noticed a HUGE difference in my battery life through out the day. that got to be a pain because sometimes i just don't have time to do that in the mornings, so i ended up buying an external charger and an extra battery. this way charge the extra battery overnight on the external charger, pop the fresh battery in the phone in the morning and i'm ready to go. but all this could be avoided if the phone would charge the battery as good as the $2 wall charger, so if you could find a fix for this battery problem it would be awesome.
I had slow charging with 2.05 and 2.15 radios, unfortunately...
Did any of you that are having this issue root and install froyo immediately after buying the phone? a friend of mine is having a similar issue. Have you tried battery recalibration? Also I would recommend checking your up time and awake times in battery info and see if there's something keeping your phone awake while charging . One last thing, try installing battery save mode toggle from market.
Sent from my ADR6300 using Tapatalk
I've been messing with the slow charge issue all night tonight, and as far as I can tell, it is not the 2.xx radio, and it must be the .32 kernel.
Slow charging started for me when I installed the first 2.2 leak which had the 2.05 radio, and remained on the the 2nd 2.2 leak and 2.15 radio. Before that I had the 2.05 radio on 2.1 and charging was normal, tonight I rolled back to complete stock 2.1/1.0 radio and charging was normal again, I kept the 1.0 radio and installed a 2.2 rom, charging slowed again, changed to 2.15 radio, still slow, so I installed the old CM6 test 8 rom which was used the old kernel with the broken camera, and sure enough, charging was fast again.
I'd really love to figure this out, if any of you get on IRC and want to discuss this, /msg digi
earthtodigi said:
I've been messing with the slow charge issue all night tonight, and as far as I can tell, it is not the 2.xx radio, and it must be the .32 kernel.
Slow charging started for me when I installed the first 2.2 leak which had the 2.05 radio, and remained on the the 2nd 2.2 leak and 2.15 radio. Before that I had the 2.05 radio on 2.1 and charging was normal, tonight I rolled back to complete stock 2.1/1.0 radio and charging was normal again, I kept the 1.0 radio and installed a 2.2 rom, charging slowed again, changed to 2.15 radio, still slow, so I installed the old CM6 test 8 rom which was used the old kernel with the broken camera, and sure enough, charging was fast again.
I'd really love to figure this out, if any of you get on IRC and want to discuss this, /msg digi
Click to expand...
Click to collapse
Great work. on testing at least...
Is there anyone out there who can help fix this? I hate these slow charge times.
I thought the issue was that the phone starts running off battery one its at 100%, not that it can't charge the last 10%...am I misunderstanding that?
I've tested this by taking it off the charger as soon as the light turns green...seems I get much better battery life this way.
This doesn't quite explain why some of us have had no problems at all either. Maybe an issue with newer devices but personally my device has been up for over 31 hours since charge and haven't noticed this issue but a friend of mine has complained of it, and he recently bought his device. Tomorrow after I charge my device I'll post with findings after charging.
Sent from my ADR6300 using Tapatalk
trunksta said:
This doesn't quite explain why some of us have had no problems at all either. Maybe an issue with newer devices but personally my device has been up for over 31 hours since charge and haven't noticed this issue but a friend of mine has complained of it, and he recently bought his device. Tomorrow after I charge my device I'll post with findings after charging.
Sent from my ADR6300 using Tapatalk
Click to expand...
Click to collapse
this has to do with 2.2 and new kernels. not stock 2.1.
trunksta said:
This doesn't quite explain why some of us have had no problems at all either. Maybe an issue with newer devices but personally my device has been up for over 31 hours since charge and haven't noticed this issue but a friend of mine has complained of it, and he recently bought his device. Tomorrow after I charge my device I'll post with findings after charging.
Sent from my ADR6300 using Tapatalk
Click to expand...
Click to collapse
I pre-ordered my phone and I have the charging issue as well so it can't be new phones vs old phones. I hope it gets figured out soon.
Ok, I can't put my finger on to the reason my phone is getting hot - no other temp threads I could find covered it.
It's 6 months old and it just started happening.
Build: FRG83 v 2.2.1
Power off, place in cradle - charges fine - stays cool.
Applied power (while in cradle) - stayed cool - battery was 100% already - woke up this morning after 6 hours and it was hot.
Pulled battery out, let sit until cool. Put in and powered - now is running cool.
Yesterday I picked it up and for no reason (that I could tell), it was hot and chewing through the battery.
Uninstalled all recently installed apps (don't have much on it right now)
I don't use exchange for mail (just gmail).
Has anyone else seen this odd behavior. There has to be some rhyme or reason to this. I'll keep uninstalling apps, but I'm not seeing anything running that is unusual...
Thx for any help
-P
pwkpete said:
Ok, I can't put my finger on to the reason my phone is getting hot - no other temp threads I could find covered it.
It's 6 months old and it just started happening.
Build: FRG83 v 2.2.1
Power off, place in cradle - charges fine - stays cool.
Applied power (while in cradle) - stayed cool - battery was 100% already - woke up this morning after 6 hours and it was hot.
Pulled battery out, let sit until cool. Put in and powered - now is running cool.
Yesterday I picked it up and for no reason (that I could tell), it was hot and chewing through the battery.
Uninstalled all recently installed apps (don't have much on it right now)
I don't use exchange for mail (just gmail).
Has anyone else seen this odd behavior. There has to be some rhyme or reason to this. I'll keep uninstalling apps, but I'm not seeing anything running that is unusual...
Thx for any help
-P
Click to expand...
Click to collapse
Contacting HTC for a new device wouldn't be a terrible idea, since it seems that everything is darn near stock and not your fault.
I did think of that, but am having trouble believing that it is a hardware problem...
Kinda my fall back plan...
Did you try to run something like SystemPanel and see if there's any app that has your Nexus running at 100% speed all the time?
Ahh, nice app - never saw that...
I'll monitor it now - it started getting hot again then it cooled off. Said it was 32C - but nothing out of the ordinary was running... (Except amazon mp3 - not sure why it is out there, I wish I could make that go away)...
You can't make Amazon stop, you have to uninstall it (which is possible if you're rooted).
See what the frequency is - if it's idling around 300 MHz, you're ok.
Yeah, I know about the amazon thing...
Weird - started talking on the phone and it got hot (and sucked serious power) - ended call and now it's cool again.
Every time I go and look at CPU use it's low (starts high as I switch task but then drops to almost nothing which I would expect)
It might be a crappy battery.
I'm trying to figure out why the CPU would get hot if the battery is bad... Temp is definitely coming from the case below the battery in the trackball area...
I have a lot of experience with LiPo's - usually takes much higher A rates to get them to heat up - we aren't even draining them at .5C.
Now, this battery did come from the wife's N1 - but this problem did not coincide with the swap...
Only time I feel the area around the trackball heating up (the CPU) is when I'm doing something intensive, and not that often. Did System Panel show anything was using CPU? You could also watch top in a term or via adb, and watch for network traffic.
You have a rogue app or bad hardware. Have you tried doing a factory reset and seeing if it also happens? Are you using a stock ROM? You mention the ROM in the OP but there are a lot of custom ROMs that are of that build.
This is a stock 2.2.1 on unmodified hardware.
I swapped batteries back and still get the same thing.
I was obviously thinking rogue app, but I don't see anything running that is 'bad'... Also it is hard to tell from the aforementioned app what the CPU is really doing when it's going crazy, as the CPU spikes when switching to the app and then settles back down to 200-300 MHz...
The other weird thing is that it seems to get really warm when charging off the PC now (didn't look close at system details at that point - was the other day)... Not even having the SD card mounted...
Will see what top shows next time I have it plugged in.
No, didn't do a factory reset yet. Was hoping to find the culprit first, but it's not looking good...
Hey Guys, I've posted in other conversations about bad battery life with blitzkrieg and it seems pretty split down the middle between those who experience good battery life and those who don't. I did follow the advice and wait several days after I re-flashed blitz and my battery has yet to level out. I keep background data off at night when I go to bed, I went to bed with 93% battery left and woke up 7 hours later with a 23% battery life - while the phone was at rest.
I also have a problem about once every two days my phone will freeze up and restart. When it happens it just gets froze on screen and the whole phone vibrates for 20-30 seconds and then restarts.
Has anyone experiences these problems and found a solution to them? Should I change my settings at all?
I really don't want to get an extended battery but with the life my phone is currently getting I don't see much more of an option.
Thanks guys,
The phone freeze/reboot is a known issue with no known resolution. Before I dropped my last phone it had that problem consistently from stock v4 through every variant of the ota updates, revolt roms, gingervolt roms, kennels, scripts, no scripts, blah blah etc.
Now, however, I picked up a second Revo and have run it through gb and flashed gv 1.3, blitz 2.1 and various scripts and tweaks virtually mirroring my old device. I did that Monday morning and haven't had a single instance yet! These guys here do awesome work..
As for the battery draining, I haven't put my extended battery back on this phone yet because I was curious how the stock would perform with these mods. For the first couple days I was discharging at an even 10% an hour. Yesterday and today its dropped to 7.5%. Why? No damn idea. But I can live with that.
So, nothing terribly helpful here but just a disclaimer that your mileage may vary and a nod to the devs here doing kickass work. Good enough that I actively went looking for another Revo instead of fussing with a second line upgrade. That speaks volumes.
Oh yeah I'm not dissing the devs at all they're great!
The revo is a strange device all the reboots due to GPS and airplane mode I'm sure is a hardware fault because every revo I've had has done it and I'm on my third. I love blitz and can't live without my overclock lol I'm just wondering if there's special settings or CPU governors I'm not using that would help.
Sent from my VS910 4G using XDA App
I've used CPU Master and am on ROM toolbox now. Can't say I've seen a significant difference between the two as far as battery goes. I've used both ondemand and smoothass, same deal.
I did have some luck limiting reboots on my first by bumping up the min to 768 but haven't needed to bother on this phone so its 2 something. No extra settings or anything. : )
Guess it's just the screwy differences in hardware that make some a better build quality than others. Well I said I wouldn't do it, but I lied...
I'm restoring to my GV 1.3 pre-blitz image as I type this. Guess I like battery over performance, we'll see...I may be back to blitz.
Can somebody explain the difference between ondemand and smoothass. I still don't understand them that well. Thanks!
I didn't read the whole thread but seeing profiles for the kernel helps a lot like when my screen is off my phone is set to minimum on the min and max which sometimes causes lag turning on but once the screen comes on it's up and running fine. At that level if I keep the screen off it takes nearly an hour to drop a percent.
Sent from my VS910 4G using xda premium
Perhaps this is not the best reference but here is one about charging your Lion battery:
This link won't paste:
[URL="http://dottech.org/tipsntricks/17705/tip-condition-your-new-cell-phones-battery-to-make-it-last-longer-but-be-sure-to-condition-it-properly/[/URL]
It points out two possible issue:
1) over discharge (perhaps our meters account for this,
2) getting the battery hot, my phone does warm up setting on the charger, sounds like the usb port charging might be better for the battery?
I know there are countless threads/topics regarding high battery usage re p880, but I didn't want to resurrect an old thread, or hijack someone else's, so if I'm wrong in creating this thread, then I apologise.Can someone please tell me what exactly this service is/does, as it seems to be the biggest problem regarding my lousy battery life.. phone just sees it as android system (pic 3) where as BS+ sees system back up service. As i have backup disabled, this is puzzling me.
Thanks in advance,
Edit: in the time it took to write this message, ive lost 14% in battery, including the time it took to screenshot.
Edit 2: Ah, now im back on PC i can type properly.
been playing around, disabling system backup service, but a new process just gets launched in its place, from key chain, to LocMgrProvider...seems as you disable one, another replaces it, all using same battery. Must i just accept, that the android system is just going to eat my battery?..like cookie monster at the biscuit counter?
If it helps, im running stock 4.0.3, freshly flashed, with F/reset, unrooted.
Thanks in advance, and any help is very much appreciated,
Sun
Sent from my LG-P880 using Nuke Powered Pigeon
SunHounD said:
I know there are countless threads/topics regarding high battery usage re p880, but I didn't want to resurrect an old thread, or hijack someone else's, so if I'm wrong in creating this thread, then I apologise.Can someone please tell me what exactly this service is/does, as it seems to be the biggest problem regarding my lousy battery life.. phone just sees it as android system (pic 3) where as BS+ sees system back up service. As i have backup disabled, this is puzzling me.
Thanks in advance,
Edit: in the time it took to write this message, ive lost 14% in battery, including the time it took to screenshot.
Edit 2: Ah, now im back on PC i can type properly.
been playing around, disabling system backup service, but a new process just gets launched in its place, from key chain, to LocMgrProvider...seems as you disable one, another replaces it, all using same battery. Must i just accept, that the android system is just going to eat my battery?..like cookie monster at the biscuit counter?
If it helps, im running stock 4.0.3, freshly flashed, with F/reset, unrooted.
Thanks in advance, and any help is very much appreciated,
Sun
Sent from my LG-P880 using Nuke Powered Pigeon
Click to expand...
Click to collapse
that's... waaaaaay too much. why are you on ICS anyway?
my suggestion is - factory reset from stock recovery (warning: your internal sd card will be fully formatted). in case you don't care about ICS, i strongly suggest JB. if you don't care about voiding warranty, i strongly suggest unlocked bootloader + custom rom and kernel. oh and also, grab better battery stats app, it shows an easier-to-understand overview when compared to apps you used
Flying_Bear said:
that's... waaaaaay too much. why are you on ICS anyway?
my suggestion is - factory reset from stock recovery (warning: your internal sd card will be fully formatted). in case you don't care about ICS, i strongly suggest JB. if you don't care about voiding warranty, i strongly suggest unlocked bootloader + custom rom and kernel. oh and also, grab better battery stats app, it shows an easier-to-understand overview when compared to apps you used
Click to expand...
Click to collapse
Thanks for such a quick reply.
I'll tell you the scenario, as quick as i can make it.
had the phone 2 weeks, got it on a 24mnth contract ( i know, sigh)
anyway, updated it to JB (4.1.2?) through LG pc suite, but thought the battery life seemed to be worse, so i downgraded with LG flash tool, to ics.
after a F/reset, i rooted, then F/Reset again, but it seemed sluggish.
the long and short of it is, ive gone up to JB twice, and down to ICS twice, rooted and unrooted twice, disabled a whole HOST of stock bloatware, and am still left with similar results as posted in the pics.
ATM ive a clean ICS and im at a loss as to what to do. ive been reading all the threads about improving battery, culling the bloatware apps etc before i decided to post.
as for bootloader, i will probably do that sometime in the future, when im more knowledgeable on the subject. at present, i dont want to be left with a 2 year contract to a brick
thanks again,
ps: you say better battery stats is better than battery stats plus?...will download now, thanks
Sun
interesting situation. it's strange that sluggishness persisted between factory resets and .dz flashes back to 10x version.
first off, how does the phone behave when you're not using it? is it draining battery bad? is it going into deep sleep? what are the percentages of cpu states (you can check this in better battery stats, as battery stats plus seems to be too clunky for me to read proper info)?
if it's deep sleeping properly, then yeah, the issue is with something sucking up the juice while screen is on. next off, check cpu states - if it's locked at 1.5ghz often, when you have screen on but doing nothing, it's significant info.
what i've noticed with display, you can count up to 3:30 hours of onscreen time with stock rom (this is with very conservative use of wifi and data during this period, and no heavy gaming for example) - that's around 200 minutes of on screen time, meaning you should get around 2 minutes of screen on per 1% of reduction in battery - how far are you from this result?
i hope we manage to get to the bottom of this, but i still recommend unlocking bootloader and flashing custom kernel and/or rom. you can't really brick o4x while unlocking bootloader afaik, and you've done more complex operations when switching from 20a to 10h than bootloader unlock is.
I would go the other way to be honest. If you do a full factory reset, install no apps, no Google account or anything and still get a similar problem with the battery drain then I would take the phone back for replacement as that is abnormal.
No point running a risk with your warranty when might be a hardware fault.
It's midnight here now so can't really test it till.morning now. When phone is in standby, it seems to hold.its juice ok. I'm sat here now, with nothing switched on except WiFi, screen at 23% brightness , and am just using tapatalk and I'm getting 2-3 mins per 1% screen. Less if I play in the menus. First thing tomorrow, I'll reset the phone again, before dl'ing any apps. Then I'll only download BBS and see how I get on. I'll also.monitor battery loss over night.
Sent from my LG-P880 using Tapatalk 4
edit:
after i wrote the above last night, i decided to watch a movie on my phone in bed.(headphones, dont wanna disturb the missus ) and i managed to watch a movie of 2hrs 10 mins, with 23% battery drain, on stock video player, yet just browsing through the phones menus/ light web surfing, eats the juice like crazy.
left phone off charge over night, and didnt even have a 1% drop in 7 hours (wifi off,sync off, data always off(dont use it)) and phone set to 2g mode
Sun
current set up
Right,
I've performed another F/reset, and rooted. Installed TB pro, and uninstalled/frozen a skew of apps/services as listed per the thread in my sig.
Installed better battery stats, charged phone to 100% took off charge, and am just waiting to see how it goes now. Would you recommend using phone as normal while BBS collects its info, or to let the phone alone for a while?
thanks again,
Sun
SunHounD said:
Right,
I've performed another F/reset, and rooted. Installed TB pro, and uninstalled/frozen a skew of apps/services as listed per the thread in my sig.
Installed better battery stats, charged phone to 100% took off charge, and am just waiting to see how it goes now. Would you recommend using phone as normal while BBS collects its info, or to let the phone alone for a while?
thanks again,
Sun
Click to expand...
Click to collapse
you can leave it alnoe during night to check if it deep sleeps properly, right now you're interested in cpu states option in bbs, to see if it uses too much cpu when doing normal tasks such as surfing, reading, watching/listening media etc. your goal is to get over 2 mins per 1% drain (in the end, over 3 hours of onscreen time with no heavy gaming). with those stats, your can say that your phone is draining normally, just that lg reports stupid stuff (f.e., stock roms report screen as using 20% of the battery, while in reality screen is using waaay more, the most actually)
Thanks Flying_Bear, I'll refrain from doing any more resets etc for the rest of the day, see how the readings progress and post on that tomorrow, after overnight analysis.
This piece of one of your previous posts just stuck in my mind:
Flying_Bear said:
i hope we manage to get to the bottom of this, but i still recommend unlocking bootloader and flashing custom kernel and/or rom. you can't really brick o4x while unlocking bootloader afaik, and you've done more complex operations when switching from 20a to 10h than bootloader unlock is.
Click to expand...
Click to collapse
TBH, from everything I've been reading on it, it kind of scared me off the subject, but to see you say it was less complicated than what I've already done, has got me to thinking.
The biggest thing for me at the minute, before considering that, it to rule out faulty hardware. At least if thats the case, i still have warranty intact.
Is the performance increase really that noticeble after flashing custom kernels/roms?
Thanks again for your time,
Sun
no.
apart from everyone here praising custom roms and kernels, DON'T flash a custom rom, when you are concerned about battery.
the best rom out there regarding battery life is by far a stock rom, be it 4.0.3 or 4.1.2.
the worst thing about the custom roms is WiFi. with stock i was able to let WiFi run through the night with less than 1% loss per hour.
on every custom rom my battery needs at least 5% per hour for WiFi, but most of the time even more. its just not useable.
shortly followed by 3g network, which has a much bigger battery drain than stock, too.
i am on CM and different kernels for some month now and i consider going back to stock, because i want to leave WiFi on in the night, otherwise my phone eats up my 100MB free 3G traffic way too fast.
BUT...
the reason for your battery hungry phone is not the ROM, the kernel or the phone itself.
your battery drain is absolutely absurd for stock ROM and can only be caused by badly programmed apps you have running.
OR:
you have your phone relatively new and play with it EVERY FRICKIN MINUTE, which would be an explanation, too.
you said, you were able to watch a whole 2h movie with only 23% loss, that sounds like the stock ROM i know. on custom you would lose around 50% for this. but when your phone loses battery when you "play with the launcher", you maybe have installed a 3rd party launcher, that eats your power, are using facebook/skype/whatsapp/(insert any other badly coded program, that has no push mode), or have just fiddled with the developer settings a bit too much.
Because you noticed your battery drain with 4.1.2, too, then i suspect a badly coded app. these are the reason for nearly every battery drain (and the reason for wakelocks, too) apart from bad drivers in custom kernels, like the WiFi desaster all the custom rom users have here.
I think the only reason I would consider custom roms, is a performance increase.... If it wont give me one, then I see no point in going down that route.
LamerDuck said:
i am on CM and different kernels for some month now and i consider going back to stock, because i want to leave WiFi on in the night, otherwise my phone eats up my 100MB free 3G traffic way too fast.
Click to expand...
Click to collapse
Totally agree, its why I refuse to enable data in the first place.
the reason for your battery hungry phone is not the ROM, the kernel or the phone itself.
your battery drain is absolutely absurd for stock ROM and can only be caused by badly programmed apps you have running.
Click to expand...
Click to collapse
when I took the original screenies, in OP, I didnt really have much in the way of apps on it. I'd not long before done a clean flash, then removed some of the bloatware that came with it.
OR:
you have your phone relatively new and play with it EVERY FRICKIN MINUTE, which would be an explanation, too.
Click to expand...
Click to collapse
At first yes... hey it was a new toy at the time. Novelty wore off about day 3 though.
you said, you were able to watch a whole 2h movie with only 23% loss, that sounds like the stock ROM i know. on custom you would lose around 50% for this. but when your phone loses battery when you "play with the launcher", you maybe have installed a 3rd party launcher, that eats your power, are using facebook/skype/whatsapp/(insert any other badly coded program, that has no push mode), or have just fiddled with the developer settings a bit too much.
Click to expand...
Click to collapse
yeah, it handled a movie quite well, I was quite pleased with this. When i said messing with the menu, I just meant exploring the phone; no custom/3rd party launchers, no messing with Dev stuff.
At the minute now, the only extra apps on my phone are XDA Dev app, tapatalk4, BBS, TB-pro and root uninstaller pro.
Oh, and can I ask.... aside form the ability to "pimp" your phone out, or the extra customization, is there any benefit to flashing custom roms? As it cant be for better performance....
thanks
Sun
LamerDuck said:
no.
apart from everyone here praising custom roms and kernels, DON'T flash a custom rom, when you are concerned about battery.
the best rom out there regarding battery life is by far a stock rom, be it 4.0.3 or 4.1.2.
the worst thing about the custom roms is WiFi. with stock i was able to let WiFi run through the night with less than 1% loss per hour.
on every custom rom my battery needs at least 5% per hour for WiFi, but most of the time even more. its just not useable.
shortly followed by 3g network, which has a much bigger battery drain than stock, too.
i am on CM and different kernels for some month now and i consider going back to stock, because i want to leave WiFi on in the night, otherwise my phone eats up my 100MB free 3G traffic way too fast.
BUT...
the reason for your battery hungry phone is not the ROM, the kernel or the phone itself.
your battery drain is absolutely absurd for stock ROM and can only be caused by badly programmed apps you have running.
OR:
you have your phone relatively new and play with it EVERY FRICKIN MINUTE, which would be an explanation, too.
you said, you were able to watch a whole 2h movie with only 23% loss, that sounds like the stock ROM i know. on custom you would lose around 50% for this. but when your phone loses battery when you "play with the launcher", you maybe have installed a 3rd party launcher, that eats your power, are using facebook/skype/whatsapp/(insert any other badly coded program, that has no push mode), or have just fiddled with the developer settings a bit too much.
Because you noticed your battery drain with 4.1.2, too, then i suspect a badly coded app. these are the reason for nearly every battery drain (and the reason for wakelocks, too) apart from bad drivers in custom kernels, like the WiFi desaster all the custom rom users have here.
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yeah wifi can drain too much, but i had almost same stats on custom as on stock - 3-4% per hour if wifi is left on, with sync on and push notifications and blabla. you've got things going great if you have 1% per hour with wifi on.
lg has crammed up a whole lot of **** inside their stock rom - apart from useful stuff like proper mhl drivers, quickmemo, nice gallery & video apps, it's bloated to hell - mlt logging, ****ty launcher (imo), widgets that only work on stock launcher, "smart log service", RIDICULOUS throttling etc). you can root and uninstall most of these, but even then you might not get what you're looking for.
my best onscreen time on stock 4.1.2 20a/20b was 3 hours 3 minutes. that's with conservative use of wifi, 3g and almost no gaming. on custom rom & kernel, today i pumped out 3 hours 37 minutes, and was on 17% battery, when i plugged it in in order to recharge it. that was an obvious increase for me (keep in mind there were custom rom/kernel combinations that had me pulling barely 2 hours onscreen time).
you need unlocked bootloader for custom kernels, and say what you say but proper kernels ARE battery savers and performance enhancers. stock kernel has for some people insane issues with baseband_xmm wakelock (for me it was rediculous, 6% per hour drain when not using a phone and no deep sleep at all) and wipes didn't help with that; only custom kernel fixed it. it has RIDICULOUS (for emphasys) throttling effect, slowing your cores down to 1ghz each when battery hits 43 degrees celsius (which for me was around 20 seconds of normal usage on a hot day outside), which leaves you crippled if you're planning on doing any complex action with your phone.
alternative is - unlock bootloader, check custom roms and see if you like'em (Zaiben is f.e. debloated and improved stock, something OP might like, or he can go cm, or carbon or any other if he prefers custom features). if you don't, it's easy to flash a .kdz file back.
Flying_Bear said:
yeah wifi can drain too much, but i had almost same stats on custom as on stock - 3-4% per hour if wifi is left on, with sync on and push notifications and blabla. you've got things going great if you have 1% per hour with wifi on.
lg has crammed up a whole lot of **** inside their stock rom - apart from useful stuff like proper mhl drivers, quickmemo, nice gallery & video apps, it's bloated to hell - mlt logging, ****ty launcher (imo), widgets that only work on stock launcher, "smart log service", RIDICULOUS throttling etc). you can root and uninstall most of these, but even then you might not get what you're looking for.
my best onscreen time on stock 4.1.2 20a/20b was 3 hours 3 minutes. that's with conservative use of wifi, 3g and almost no gaming. on custom rom & kernel, today i pumped out 3 hours 37 minutes, and was on 17% battery, when i plugged it in in order to recharge it. that was an obvious increase for me (keep in mind there were custom rom/kernel combinations that had me pulling barely 2 hours onscreen time).
you need unlocked bootloader for custom kernels, and say what you say but proper kernels ARE battery savers and performance enhancers. stock kernel has for some people insane issues with baseband_xmm wakelock (for me it was rediculous, 6% per hour drain when not using a phone and no deep sleep at all) and wipes didn't help with that; only custom kernel fixed it. it has RIDICULOUS (for emphasys) throttling effect, slowing your cores down to 1ghz each when battery hits 43 degrees celsius (which for me was around 20 seconds of normal usage on a hot day outside), which leaves you crippled if you're planning on doing any complex action with your phone.
alternative is - unlock bootloader, check custom roms and see if you like'em (Zaiben is f.e. debloated and improved stock, something OP might like, or he can go cm, or carbon or any other if he prefers custom features). if you don't, it's easy to flash a .kdz file back.
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Hi Flying_ Bear, can you pl confirm what combo of rom and kernel is giving you 3 hr 37 min of screen on time and which ones to avoid (ones that gave you 2 hrs)?
Carbon rom 4.2.2 version with iodak v7 had the best onsceen. Id say stock was worst, 2hrs 45mins of onscreen with no gaming and low brightness, with stock kernel