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CM6 is definitely great, I think without question it is a vast improvement.
The only issue I have is my battery life is ABSOLUTELY HORRIBLE. Could be the worst battery life I've had with any phone. But maybe that's just the EVO, with it's big screen and speedy processor. I underclock to 384 mhz sometimes but then the thing slows down and even freezes. I have 3 different batteries and they all perform about the same (not good.) Before I had a partial wake issue but that's gone, and battery life still stinks. I've also tried calibrating but nothing really seems to make it better.
I hear the snap thing is good for battery life but I everytime I open that thread I get a headache. I love this phone and am obsessed wtih it but that thread is a bit much even for me!
Can anyone give me a quick and dirty explaination of what snap is / how to use snap? Which kernel to flash? Some day I hope to digest that mammoth of a thread, but right now I'm too busy reading texts for college and Just want better battery life.
Thanks!
Download app System Panel. Will help show you what is eating up your battery/resources.
Then, download app Juice Defender. Worth it to get the paid version. Its like 3 bucks IIRC. This will help you get more battery life out of your phone.
-Sent from my Evo.
nyc_zx10 said:
Download app System Panel. Will help show you what is eating up your battery/resources.
Then, download app Juice Defender. Worth it to get the paid version. Its like 3 bucks IIRC. This will help you get more battery life out of your phone.
-Sent from my Evo.
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Click to collapse
Yeah, I tried System Panel but the things eating my battery were mostly system things, like Browser. I guess I could give it another go.
Why are Juice Defender reviews so bad? I've considered it before also, maybe will try playing with it again
snap 8.2 is the current release. you can try any of the kernels, but i would avoid the 7.0/7.1 SD Card implementations since that technology has been put on the back burner for a bit.
Snap allows you to you Overclock and Undervolt (aka: UV).
Overclocking of course is for speed and Undervolting may save battery.
all EVOs are not created equal. some like undervolting some do not. so snap is available in multiple flavors. each with a different UV floor. the lower the floor the more potential battery saving..but also the more chance for a random reboot or wifi/gps acting funny. remember UV retards the amount of power so things can act goofy. the different UV floors are 800mv - 925mv. for example...i use the 8.2_900 because it works well with my EVO. the 8.2_800 booted great but after a while started rebooting itself. 8.2_850 just hung at bootup. the 8.1 kernels didn't work for me at all. 7.3b1 was great.
HAVs is adaptive..so don't get stressed if your device fails to boot properly the first time. wipe the cache/dalvik and try again.
so download a few of the 8.2 kernels.
make your nandroid
begin trial and error (I'd suggest starting at 800, 850 then 900 to get a feel)
don't be afraid to wipe the Cache and Dalvik multiple times.
don't worry about the whole thread. just grab the last few pages and read the OP. then feel free to ask.
i also recommend setCPU. you can find some threads for SetCPU configurations to help. BUT....make sure SetCPU is disabled when flashing the new kernel. once you get a working kernel you can enable SetCPU...but during testing phase it will give you gray hair.
jmxp69 said:
Just a few quick thoughts on voltages/freqs after seeing a handful of discussion in the thread:
1) Every 8.2 kernel has voltages lower than stock. The default stock voltage @ 245 is something around 1050.
2) No real effort is made to UV at the top end. It's a little lower, but the objective at the highest CPU frequency is not to UV. Most of the benefit of UV comes at the low end of the scale when your phone is idle (most of the time). Less voltage = less draw.
3) nHAVS scales voltage at each step. There is a min.max voltage at every cpu frequency. This range is fairly small--50-75mv, but it enables HAVS to decide based on feedback from the CPU which one to apply. And the max at each step is lower than stock. So no matter how you slice it, even if you're running 925, you are undervolted. This becomes a question of how undervolted.
4) OC is not about undervolting, it's about overclocking. The differences is voltage vs. frequency. OC means we're increasing the CPU frequency beyond stock which is 998mhz in the case of Evo. If you move your SetCPU slider beyond 998mhz, you're overclocking.
The objective of overclocking is speed. The objective of undervolting is battery savings. Snap gives you both. We overclock when we increase the fequency with SetCPU. We undervolt automatically via nHAVS. As of this writing, UV is handled in the kernel, it happens most at the bottom end of the frequency scale.
I hope this helps clear up some of the questions. Great conversation by the way.
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GREAT EXPLANATION Dragin!!!
and also, to the OP.... dont forget, if you do go with setcpu, do NOT 'set on boot' mmmmkay??? lol
Thank you Dragin!!!
That helps a lot! So once you have Snap setup at what you feel is "good" does your phone seem to perform as well as before you had it undervolted? Man, sounds like a pretty involved process - maybe I better wait until I can really sit down and play with it.
goodelyfe said:
GREAT EXPLANATION Dragin!!!
and also, to the OP.... dont forget, if you do go with setcpu, do NOT 'set on boot' mmmmkay??? lol
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Click to collapse
Do you mean for the first flash? Or every time you boot your phone?
If not set on boot, it means you have to start SetCPU manually after each boot. Doesn't seem right
Sent from my PC36100 using XDA App
foueddyf said:
Do you mean for the first flash? Or every time you boot your phone?
If not set on boot, it means you have to start SetCPU manually after each boot. Doesn't seem right
Sent from my PC36100 using XDA App
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Click to collapse
I think he's talking about when ur figuring out the best setup
Regarding Juice:
I didn't really read too much into the reviews for this particular app. It works. I was having battery issues. Downloaded Juice, got the settings somewhat right to my liking and so far no complaints. Unplugged my phone from charger this morning at roughly 9am, been using it moderately all day, and as of right now at 12:50am, I am at 29%.
Bad reviews or not, I can attest to it working and making a difference in battery life.
Sent from my PC36100 using XDA App
I had the same issue, left to stock with kingx.
Sent from my PC36100 using XDA App
nyc_zx10 said:
Regarding Juice:
I didn't really read too much into the reviews for this particular app. It works. I was having battery issues. Downloaded Juice, got the settings somewhat right to my liking and so far no complaints. Unplugged my phone from charger this morning at roughly 9am, been using it moderately all day, and as of right now at 12:50am, I am at 29%.
Bad reviews or not, I can attest to it working and making a difference in battery life.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Do you know what in particular Juice is doing to give you better battery life? like what does Turn off certain things based on conditions or?
That is some good battery life.
Correct.
You can set conditions to do certain things. Such as disable data/3g/wifi while screen is off. Also if you need data synced you can set a condition to enable data wifi or 3g for X minutes every X minutes/hours.
I am not affiliated with the dev in anyway but it def made a difference and was worth the price for it.
Sent from my PC36100 using XDA App
nyc_zx10 said:
Correct.
You can set conditions to do certain things. Such as disable data/3g/wifi while screen is off. Also if you need data synced you can set a condition to enable data wifi or 3g for X minutes every X minutes/hours.
I am not affiliated with the dev in anyway but it def made a difference and was worth the price for it.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Meh... see I really don't want to do those things. I can turn off data sync myself and just have gmail forward me a text message when I have an email. I just was hoping there was a way to get decent battery life without going back to the days of Winmo
I absolutely adore CM6, but I'm really starting to think that it is not battery friendly. Last night my battery went from full to 25% in 8 hours. I had nothing running, my partial wake was fine, and Android system took up 60%+. I really don't feel like doing another wipe, but it looks like I may have to. Just want it to work right at this point.
Again, I truly love CM6, the open source concept, the transparency, the whole clean idea of it, but there is something seriously wrong with the battery life (at least in every install I have tried)
berardi said:
I absolutely adore CM6, but I'm really starting to think that it is not battery friendly. Last night my battery went from full to 25% in 8 hours. I had nothing running, my partial wake was fine, and Android system took up 60%+. I really don't feel like doing another wipe, but it looks like I may have to. Just want it to work right at this point.
Again, I truly love CM6, the open source concept, the transparency, the whole clean idea of it, but there is something seriously wrong with the battery life (at least in every install I have tried)
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Click to collapse
i agree with you. but i also feel that CM6 is on par with the Official HTC/Sprint ROM when it comes to battery life expectancy. however, after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
as for finding your EVOs kernel made in heaven...
it's not too bad so long as you have some time. but if you are time strapped, need your phone in 20min and don't read the OP... you will curse and swear. expect to get hung up at the HTC splashscreen a few times and it will bootloop on you before your done. <I'd suggest just leaving your battery cover off until you are done muckn about for that session>
klick may be easier for the some end users because of fewer selections. I've never used his kernels. if i try them, i'll prolly wait till he's put out a few AOSP versions...to work out any bugs.
oh yeah...one odd thing, it seems that sometimes folks flash a incompatible kernel it gets 'stuck'. after that 'bad flash' they are unable to flash any kernel until after they have nandroided back and rebooted...then they can flash again. i had this happen twice....i was unable to get a known good kernel to load until after i restored from backup. /shrug
oh....try this. download the snap7.5_925 kernel. if it runs smooth. call it a day and you should be pretty happy with that until the new versions come out. yeah, if you got one of the _800 kernels running you may pull an extra 30-45min of time...but that requires a level of geekdom that not everyone has.
DraginMagik said:
i agree with you. but i also feel that CM6 is on par with the Official HTC/Sprint ROM when it comes to battery life expectancy. however, after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
as for finding your EVOs kernel made in heaven...
it's not too bad so long as you have some time. but if you are time strapped, need your phone in 20min and don't read the OP... you will curse and swear. expect to get hung up at the HTC splashscreen a few times and it will bootloop on you before your done. <I'd suggest just leaving your battery cover off until you are done muckn about for that session>
klick may be easier for the some end users because of fewer selections. I've never used his kernels. if i try them, i'll prolly wait till he's put out a few AOSP versions...to work out any bugs.
oh yeah...one odd thing, it seems that sometimes folks flash a incompatible kernel it gets 'stuck'. after that 'bad flash' they are unable to flash any kernel until after they have nandroided back and rebooted...then they can flash again. i had this happen twice....i was unable to get a known good kernel to load until after i restored from backup. /shrug
oh....try this. download the snap7.5_925 kernel. if it runs smooth. call it a day and you should be pretty happy with that until the new versions come out. yeah, if you got one of the _800 kernels running you may pull an extra 30-45min of time...but that requires a level of geekdom that not everyone has.
Click to expand...
Click to collapse
Thanks man, appreciate the breakdown.
You have inspired me, I'm going to bite the bullet and try this snap7.5_925 kernel. I'll report back my luck
I do enjoy this stuff, really - just right now it would be irresponsible for me to spend too much time on it. School comes first right now.
DraginMagik said:
... after i put on the snap kernel and copied someones setcpu config....i got 26+hrs of 'use it as i wish' time + still had about an hour of in-pocket time left. i was hooked. i bet you an imaginary dollar the same will happen for you.
Click to expand...
Click to collapse
Wow, I'd love to have that kind of time with CM6, right now I drain at about 10% an hour with no usage at all; where can I find that setcpu config? I really like CM6 but battery life is killing me right now.
loupy said:
Wow, I'd love to have that kind of time with CM6, right now I drain at about 10% an hour with no usage at all; where can I find that setcpu config? I really like CM6 but battery life is killing me right now.
Click to expand...
Click to collapse
Yeah dragin, don't hog those sweet settings! I'm enjoying Snap 7.6 and it seems to be helping out my battery life a bit, but I'd love to see your SetCPU details.
I've found that the issue for me is bluetooth. If I have it on constantly my battery will drain 10-15% per hour. With bluetooth off it's only draining 1%-2% per hour.
Seems like the bluetooth needs work on CM6 in order to have the efficiency that the other ROMs i've tried (Fresh and EViO) have. Nonetheless, I'm sticking with CM6 and just use the bluetooth when necessary.
I have the same issue with bluetooth on CM 6.0.0. I am running the stock kernel that comes with cyanogenmod, so this is definitely not a snap issue. There was a bug submitted about a month ago:
code.google.com/p/cyanogenmod/issues/detail?id=2136
I *really* hope this can get fixed for the 6.1 release, but it is currently listed with a low priority. I really love CM6, but basically making bluetooth unusable for more than a few hours really makes me struggle with the using this rom.
Why not the 7.6 with turbo...just wonderin
Configuring this thing for good battery life is exhausting. Before root I had done most things listed in this thread : http://www.xda-developers.com/android/tweaks-for-superb-battery-life-in-evo/ and finally achieved pretty good battery life.
After root, I have never been able to achieve this even though the bloatware isnt running, have various tweaks on there for performance, and so on.
Have tried Fresh Rom with stock and Kings #11 and liked it but had terrible battery life. Tried Myn's 2.2 with stock, Kings #11, and Netarchy and battery was not much better. Now running AVA9 (no flashed kernel) and battery is no better. Have tried running setCPU on all these setups and does not help.
Any suggestions? Seems someone will say this rom/kernel combo works for them and another person will say it sucks, don't use it.
I couldn't stick with Myn's because there were too many bugs/errors. If my best bet is to go back to all HTC stock rom w/root then so be it.
.....and yes, I have read through the numerous amount of threads on this topic but no clear combination has been highlighted that I have seen. I use my phone for business primarily so it needs to last me as long as possible. The thought of increasing my phone size with an extended battery is not appealing to me.
I have stock rooted 3.29. I initially did the plug-unplug trick when I got the phone. Then, I turned off always on data, and set email, google accounts, and Sense weather widget to update once an hour. Phone behaves the same as when data is always on, so I don't even notice 3G off when the screen is off.
I get 8 - 10 hours under very heavy use (constant fiddling, email, games, internet, calls, etc),
10 - 15 hours moderate (surfing, ebooks, email, internet),
and easily 18+ with light use (email, occasional light surfing, occasional call)
I have everything the same as before root so with the bloatware and some other things not running would think it would last longer than stock......not!
@greyopaque...what was the reasoning for using stock rom instead of custom? Battery life or just never tried any of the others? Would like to know if your battery life is better with just the stock over others.
Ditto....I am a heavy user and leave everything running that I need. I use the phone for what it was made for. After trying/not trying all different types of roms/battery tweaks/advanced task killers/battery monitors etc., I decided to buy another original red 1500 battery as I don't like the extended battery look either. So, until they come with better battery technology....I guess that would be the career to go into and make some money ;0).....we are stuck with the best phone ever...yet....with a battery life that sucks for those of us that put the phone to the test....have a great day!
Yep...only problem is having to shut the phone off, change battery, then power back on. All the while, missing whatever phone calls come in.
***My point of the thread really isn't the terrible stock battery but the fact that the pre-rooted setup lasted so much longer than the rooted w/custom rom. Why??
I would think the battery life would get better without all the bloatware and other worthless services running all the time.
Once again.. you need to check your apps. Most likely there's something causing a drain.. Try updating to the newest rooted stock roms (3.30). The new kernel is definitely an improvement.
As an aside.. what bugs did you have with myn's 2.2 rls2? I ran it, and it was fine. Now on rls3 beta and amazing rom with great battery (3.30 base).
To be honest, I've never tried anything else. I really like the stock Sense experience... and since this is a work phone, I need it to work without glitches.
CCallahan said:
@greyopaque...what was the reasoning for using stock rom instead of custom? Battery life or just never tried any of the others? Would like to know if your battery life is better with just the stock over others.
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Click to collapse
Well....hopefully I can hear from some peeps that have used a good amount of custom roms/kernels, as well as the stock one and see what they think.
Cmon guys....let me know!
@eyeballer1......Myn's was just acting weird and I kept getting a "com.htc.bgp" force close that I couldn't fix. Also, I have tried the newest stock rom but it is just so darn plain jane didn't keep it on long enough to test it. As for apps, I have basically the same apps on my phone that I had before root (except for specific root apps such as rom manager, titanium, etc).
1Brite1 said:
Ditto....I am a heavy user and leave everything running that I need. I use the phone for what it was made for. After trying/not trying all different types of roms/battery tweaks/advanced task killers/battery monitors etc., I decided to buy another original red 1500 battery as I don't like the extended battery look either. So, until they come with better battery technology....I guess that would be the career to go into and make some money ;0).....we are stuck with the best phone ever...yet....with a battery life that sucks for those of us that put the phone to the test....have a great day!
Click to expand...
Click to collapse
Sadly they won't.. That is battery technology.. This world is pretty much stuck where its at and will probably stay there.. Its the one thing that is not progressing that much.. Even from the 50's
That said.. the thicker battery is the way to go.. Only you will know its thicker, and trust me.. ITS NOT THAT BAD! Believe it or not you get used to it.. If its for business, well then a thicker battery should not bother you at all, use it during the day and maybe at night switch back to the smaller one.. You know, for the dates and ****
The thicker battery will be a life savior.. All these battery tricks and tips help, but nothing is going to be mind blowing.. The fact is, this phone is extremely advanced and requires a lot of power.. I just except the fact that I need to be close to a power charger at most times..
I might go ahead and try Myn's new beta with 3.30 and see what happens. Looks as though I need to look deep into what is actually using my battery. I have always used K-9 for email and have heard it sucks up battery, but it only uses about 2% on mine and is the best email app I have ever found.
@fastfed......I'll have to ask my wife if I can go on a date sometime.
what helped me the most was wiping battery stats correctly (as per cyanogen wiki, but applies to all roms).
Charge to full, turn off, wipe battery stats. Turn back on, wait till everythings loaded, unplug. Use as normal until battery dies (do not charge at all until battery dies). Recharge fully in one go (meaning do not unplug while charging until full). Use and charge as normal.
This should be done whenever flashing new rom.
Sent from my blah blah blah blah
I also use k9 for mail. As I use Hotmail not Gmail.. is it really that bad? Anything else out there ?
Sent from my PC36100 using XDA App
The biggest positive jump I have seen in regards to battery life was going from Cm6 to 3.29 ruu stock, then I ur3 to root.
I'm still sceptical that the 3.30 zip update gave any improvement to battery life as I have seen others report. In fact, I almost wonder if I somehow have less battery life now, but it could be in my head. It's almost impossible to approach this issue scientifically since I use this evo all day.
Sent from my PC36100 using XDA App
Try bakedsnack 1.8, its the best battery life I've seen on a rom w/o having to make all these stupid tweeks and disabling features on ur phone.
Sent from my PC36100 using XDA App
I'm gettin great battery life using vaelpak 2.3 with the stock htc kernel. I imagine most of the custom kernels around are based off of older kernels and while they may have higher "performance" ratings though I have hardly been able to tell a difference between kings 11 or baked speed and battery, I think the newer stock kernel is your best choice no set cpu to worry about, its just simple. I'm personally gettin about 14 hours with almost constant music playing to bluetooth headset, a bunch of browsing, and occasional use of google navigation which is a big battery eater. With just phone and text use after 21 hours I was at 52% yesterday.
ok so i have literally flashed every major rom / kernel and a comination of each. I have found that with minor tweaking most sense based roms get close to the same battery life. some people will argue that this or that rom is best but I would challenge others to truely preform a test on them and i bet they would be suprised.
k-9 is only a battery hog if you have it constantly polling for new emails if you have it set up to scan constantly then it will take a reasonable about of battery life but nothing more then most other email apps with the same settings.
have you tried as was lsited above and recalibrating your battery? I am assuming you are a pretty heavy user from the sound of things. How long where you getting pre root and how long are you now getting rooted? do you have titanium back up set up on a schedule? If so that can cause major battery drain as it sometimes keeps your phone awake.
All in all with the information you provided no one can actually tell you what is wrong. there are to many variabes and everything we say is a shot in the dark hoping to hit common problems.
my best recomendation configure your battery stats as listed above, if you havent tried use the HTC trick (chrage battery for 8 hours turn off phone charge for 1 hour turn on phone unplug it or 2 minutes then turn it off and charge for another hour.)
Anytime you wipe data you wipe your batary stats and it can drasitally impact your phones "battery life".
At this point I'm not so sure my battery or charging device on the phone isn't defective. But, only time will tell.
Currently I am running the newest, non-beta Myn TwoPointTwo and Netarchy 4.2 non-havs. I also ran this procedure (which fachadick already suggested):
1. Phone on...charge until green light comes on. Immediately unplug and turn phone off.
2. Plug phone back in until green light comes on again. Immediately boot into Recovery and wipe battery stats.
3. Use the phone on battery until dies.
4. recharge phone to 100%
I'm still on step 3. Will report back after a few days.
I had never heard of doing this when switching roms so hopefully it will help since I have swapped out a good amount lately.
Does anyone know where to get the newest HTC flashable kernel based on the new 3.30 release? All I have found is the rom package.
Hi,
I just got my HTC One X and I love it. The only downside to it so far is after leaving it on charge overnight im lucky if I get 5-6hrs out of it.
Im on the default OS and ive only installed some apps but im pretty much in the dark where to start.
Can anyone recommend the best rom to use or even just good apps or ways to make my battery life extend?
Thanks and again sorry if this is a noob question.
Have you updated your device with all the official updates? Have you disabled fast-boot, auto-brightness, satellite-GPS and all other wireless options that you don't need and opted for a 30-40% luminance rating (screen remains legible) in Settings? The operating time you get, as stated of 5-6 hrs seems pretty low. I get at least double that with intensive usage, and I mean it, THD Games! Keep in mind however that the screen of HTC ONE X, REALLY, IS the most power-demanding component of our smartphone and there isn't much that can be done about it.
As to your question, Villain rom is considered by many to be battery-friendly although pretty basic. In addition and if you have a rooted/unlocked device (I still haven't rooted mine because I'm perfectly satisfied with it for now), you can also give a try to the SetCore app that can be found i the Apps section of the HOX forum and as its name implied it allows you to control and deactivate cores at will. Also try out the well-known SetCPU app to underclock the processor and get more life from it.
Although, if you've purchased your phone recently, you may simply have to charge some more to condition the battery and then it will get to normal levels, of ~12-15hrs of serious usage.
first of all you do not need a rom that is based on battery life..all roms are the same with just few different modifications to it. choose a rom that YOU like and not based on what other people tell you. Then you can do a few things to get better battery life. as the poster above me stated you can do what he mentioned..but i still with autosync on, GPS on and autobrightness i can manage to get over 3hrs screen on time and over a day and a half battery life. Go into settings and sound and untick touch keypad sounds and lockscreen sound and dialpad sounds...come out and reboot the phone..you might think why but trust me that causes drainage to the battery and keeps the phone wake when the screen is off. second if you use twitter and facebook i would suggest to use them only when you log in..do not have it on in the background. if you still need more help PM if you like
but search for Touch Xtreme rom by Smarberg...that is a good rom based on battery more than anything else.
Rowan88 said:
Hi,
I just got my HTC One X and I love it. The only downside to it so far is after leaving it on charge overnight im lucky if I get 5-6hrs out of it.
Im on the default OS and ive only installed some apps but im pretty much in the dark where to start.
Can anyone recommend the best rom to use or even just good apps or ways to make my battery life extend?
Thanks and again sorry if this is a noob question.
Click to expand...
Click to collapse
Feregorn said:
Have you updated your device with all the official updates? Have you disabled fast-boot, auto-brightness, satellite-GPS and all other wireless options that you don't need and opted for a 30-40% luminance rating (screen remains legible) in Settings? The operating time you get, as stated of 5-6 hrs seems pretty low. I get at least double that with intensive usage, and I mean it, THD Games! Keep in mind however that the screen of HTC ONE X, REALLY, IS the most power-demanding component of our smartphone and there isn't much that can be done about it.
As to your question, Villain rom is considered by many to be battery-friendly although pretty basic. In addition and if you have a rooted/unlocked device (I still haven't rooted mine because I'm perfectly satisfied with it for now), you can also give a try to the SetCore app that can be found i the Apps section of the HOX forum and as its name implied it allows you to control and deactivate cores at will. Also try out the well-known SetCPU app to underclock the processor and get more life from it.
Although, if you've purchased your phone recently, you may simply have to charge some more to condition the battery and then it will get to normal levels, of ~12-15hrs of serious usage.
Click to expand...
Click to collapse
Im sure all the official updates are done. I use wifi in house and 3g when outdoors. Ive got bluetooth and gps disabled and as of now my screen is off automatic. Ill keep charging like you say to condition the battery but can you overcharge it?
I'm on stock and my battery seems to be OK.
The multitasking on another hand is shockingly bad.
Please someone give me aokp or cm9
Sent from my HTC One X using Tapatalk 2
I fixed multitasking with an init.d script that lowers the low memory killer values. All the apps stay in memory now without closing... like they are supposed to.
Some say HTC set the values so high to save battery, but that is crap. No power is used when the app is held in memory, infact less is used as the apps aren't constantly being opened closed and reloaded. I think they just messed up.
backfromthestorm said:
I fixed multitasking with an init.d script that lowers the low memory killer values. All the apps stay in memory now without closing... like they are supposed to.
Some say HTC set the values so high to save battery, but that is crap. No power is used when the app is held in memory, infact less is used as the apps aren't constantly being opened closed and reloaded. I think they just messed up.
Click to expand...
Click to collapse
Hey tell one, tell all...
I can't deal with all these reloads
Sent from my HTC One X using Tapatalk 2
At first my girlfriend had her Nexus S updated to ics and immediately we noticed a huge difference in how long her battery lasted and she is the furthest thing from a heavy user.
So when I heard that ics ws being released for our phone my first thought was i hope that what she experienced won't be what i do as we have a better phone right?
Well I am sad to say on a stock but rooted rom I experience the same lack of battery life as her.
Now I am no beginner to Android and have changed all sorts of settings available and nothing syncs on its own and when I unplug my phone from charging in the morning I will need to plug my phone in at night before bed as my phone will be completely dead.
I have to say I am very disappointed in the battery life of thr the stock rom and hope some good kernels make it out to help.
Sent from my SGH-T989D using XDA
Have you tried to find out which app/process is draining your battery? Better Battery Stats can help you identify what is using up your battery.
I had a big keep awake problem when i first installed stock ICS on my T989D. I did a full wipe of the phone and formatted my internal SD card (after backing things up of course), reinstall the same stock ICS and everything works great now. Battery life is about the same as before (stock GB w/ Synergy kernel), which is about 30 hours with moderate use.
Try CM 9. I get almost 2 days of battery life.
Sent from my SAMSUNG-SGH-T989 using xda premium
I've never had better battery life personally.
Sent from my SGH-T989D using Tapatalk 2
Though I am now on AOKP, I had great battery life on stock ICS as well. But, everything is subjective. How many email accounts are being synced? Do you have Facebook / Twitter / G+ updating every hour? Do you have news feeds continuously updating as well?
I have to agree with the poster above. Get Better Battery Stats and find the culprit draining your battery and work from there.
biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA
Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA
I have a brand new T989D (I'm new to Android, former iPhone user) and got the ICS upgrade the day I got it (9 days ago). Battery life is terrible, I'm lucky if I get 10 hours of moderate usage. The phone also tends to run very, very hot. Sometimes apps freeze and all I can do is either wait or, in some cases, remove the battery to reboot.
I'm open to any tips that will get this fixed! I haven't rooted yet (no time). I think I will try those wipe tools and reflash the stock ICS ROM.
First post btw - glad to have joined XDA!
Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium
Android_Monsters said:
Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium
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Thanks, although a lot of howtos seem to be for GB since ICS only landed 9 days ago. Also there's a lot of conflicting information, so I prefer this one:
http : // galaxys2root.com/t-mobile-galaxy-s2/how-to-root-icsgb-on-t-mobile-galaxy-s2-sgh-t989/
Aaaannnd... rooted! \o/
anomy13 said:
Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA
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Click to collapse
phone is a telus phone so its already using that rom.
setcpu us setup already but thinking perhaps to undervolt
Sent from my SGH-T989D using XDA
Stock, not rooted, my battery life is great. Something is using your battery up, and flashing some exotic kernel isn't going to change that. The stock kernel works fine. You'll want to find the root of the problem. Keep a real-time (or 1-5s interval anyway) eye on the phone's current (mA) usage, and when it's high for no apparent reason, you'll know that whatever is sucking your battery is doing it right then. That should help you characterize the problem. I've noticed when my WCDMA/GSM radio signal sucks, so does the battery life, so I either turn off the radio or switch to GSM only when I'm in that area. If your display is what's eating your battery, well a kernel can't stop that. Turn the brightness down, leave it on auto-brightness, or just deal with it if you need the display on all the time. But if tweaking and modding makes you happy, by all means...
firebane said:
biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA
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I have the same complaint. The "screen" battery usage is just unacceptable, especially compared to GB. My phone has been draining from a full charge for ~4.5 hours and my screen usage is 70% and battery is down to 65% with hardly 10 minutes of screen-on time.
I use an app called autostarts and you basically enable/disable apps that start running when certain events happen (phone startup, wifi being turned on, incoming call/sms/mms, other apps turning on, etc.). Just make sure you do your homework so you dont disable something critical. Hopefully this app works on ICS. You'll be surprised what different events make certain apps turn on automaticly. Screen, data/wifi, gps and bluetooth are the biggest battery drainers. No matter what Rom you are on if you don't keep control of those items your battery will drain fast. Keep ur screen on auto, let it go off @ 15 seconds ( you have to be pretty used to your phone for that setting not to annoy you), turn OFF your data or wifi when not in use. With bluetooth and gps...well u know that when you use them your battery is gonna drain faster than normal...just keep that in mind. Its all pretty much common sense.
I'm not going to tell you how much battery time I get cuz its nonsense. There are times my phone lasts till the next day and others Im charging it by sundown. Then again Im still on Juggs n Darkside kernel and Im gonna wait a bit still b4 I make the switch. Also don't go by what other people say on battery life cuz if you might not get the same results on that ROM. Everyone of our devices is unique and acts different. Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Sent from my Blutiful SGSII w/Juggs.
Duel core vs single core
Larger brighter screen
Processor is clocked higher
Radio is connected to hspa+ network
Tw vs Samsung.
These things make a difference
Sent from my Galaxy Nexus using xda premium
After upgrading to ICS stock unrooted battery life sucked (5-6hrs). I did the whole remove battery, factory reset and still sucked.
Broke down rooted (still stock), downloaded batterycalibration from play, followed the instructions. Easily get over 24hrs before having to charge again. and when I say easily, I mean I still have over 25% left.
Get a gnex extended....maybe a bad battery
Sent from my SGH-T989 using xda premium
AOKP build 40, latest eugene373 streamline kernel. I went 9 hours earlier it earlier and it was still at 70% You will see a difference!!
Sent from AOKP Goodness :-D
mrrobc97 said:
Im not going to tell you how much battery time I get cuz its nonsense. .........Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
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Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.
jonjon68 said:
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.
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Yes exactly, I hate when people post screenshots of their phone getting 24+ hours, I'm there thinking "well obviously they don't use their phone alot". There is no way in hell i could get 24 hours no matter what rom/kernal I use. Im just happy when my phone can make it till I get home at night
Sent from Flip's SGS2
I've been running the 9/15 nightly, and while I haven't had excellent battery life, it has typically lasted around 8 hours or more. Today was a little different; with only an hour of screen time, my battery was down to 30%. On top of that, it usually takes 3 or 4 presses of the home button to wake my phone up.
EDIT: I forgot to add that my screen usage usually accounts for 60%, or more, of my battery usage--and that's with minimal usage. It always seemed like my screen was draining the battery even when it was off. It is much less now.
I read on the forums that a simple increase of the minimum frequency can resolve the waking issue. However, it didn't; instead, my battery life improved dramatically. I'm used to a pretty jagged and sharp battery graph, but now it's as smooth and linear as I have ever seen it.
Can anyone explain why raising the min freq improved my battery life?
Sent from my SAMSUNG-SGH-I747 using xda premium
Why don't you update? Its Oct 5th. Maybe give that a try? Old build man.
Well, I've considered it, but I always check the main thread first. It always seems like people are having LTE or GPS issues with the new build. Everything, aside from the battery life and screen waking, has been working exceptionally well. Not to mention, school and work hasn't given me enough free time to experiment with the new builds. I might try this tonight though.
Sent from my SAMSUNG-SGH-I747 using xda premium
DStevens5833 said:
Well, I've considered it, but I always check the main thread first. It always seems like people are having LTE or GPS issues with the new build. Everything, aside from the battery life and screen waking, has been working exceptionally well. Not to mention, school and work hasn't given me enough free time to experiment with the new builds. I might try this tonight though.
Sent from my SAMSUNG-SGH-I747 using xda premium
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The rom actually updates EVERY DAY you have missed many many updates here is a changelog http://changelog.bbqdroid.org/#d2att/cm10/1349329973
well all devices are not created equal. i suppose its possible that the ideal minimum frequency for your device is a above stock (or whatever you had it at before). raising the minimum frequency can improve cell connection, screen flickering issues, ect (things that cause battery drain).
also i advise you to update your cm build. either that or switch to cm monthly or another rom that doesn't push out critical updates every night. Try a rom that is considered stable like liquidsmooth, slimbean..
On the Oct 3 build and it's very fast. Batter life has been quite bad, have to charge it twice a day. Had a lot of crashing yesterday, phone decided to reboot continuously. Apollo has stopped error persisted until I cleared cache, and keep getting email/exchange devices have stopped errors until I disabled email.
Battery is the only thing that really bugs me though
Not sent from my toilet with a soap bar.
@nccu_eagles & @jefferson9: To be honest, I never realized the minimum frequency affected so many different elements outside of power saving. I admit I haven't kept it up-to-date; I'm always afraid to update after seeing some of the bugs people post. Perhaps I would be better off with a more stable release--at least until the semester is over, which will leave me with much more time to dabble. If I finish my homework in time, I might try a few different roms tonight.
@adammur: Those are the type of bugs that keep me from updating.
On another note, today's battery life has been great. My battery would normally drain between 12-20% an hour. Today, I'm averaging 5% an hour with similar usage. :good: Anyways, thank you guys for the replies. I'll see if I can't find something to better suit me.... for now :fingers-crossed:.
Before playing with the TouchWiz Jellybean Milestone 5 (Firefly) ROM by Drew Garen, I was running the JellyBro's euroskank October 3rd nightly along with LeanKernel as well as JuiceDefender Ultimate...
My Galaxy S3 could literally last 2 days with that setup. It was UNREAL.
The problem is, I really actually do like the TouchWiz interface (I know I know, I'm one of the few).
But if ultimate battery life is your goal with the Samsung Galaxy S3... Do a factory reset / cache wipe and install the Oct 3rd version of JellyBro's euroskank for the d2att... Then go ahead and install yourself the tmobile / AT&T version of leankernel...
You WILL NOT be sorry!
DStevens5833 said:
I've been running the 9/15 nightly, and while I haven't had excellent battery life, it has typically lasted around 8 hours or more. Today was a little different; with only an hour of screen time, my battery was down to 30%. On top of that, it usually takes 3 or 4 presses of the home button to wake my phone up.
EDIT: I forgot to add that my screen usage usually accounts for 60%, or more, of my battery usage--and that's with minimal usage. It always seemed like my screen was draining the battery even when it was off. It is much less now.
I read on the forums that a simple increase of the minimum frequency can resolve the waking issue. However, it didn't; instead, my battery life improved dramatically. I'm used to a pretty jagged and sharp battery graph, but now it's as smooth and linear as I have ever seen it.
Can anyone explain why raising the min freq improved my battery life?
Sent from my SAMSUNG-SGH-I747 using xda premium
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What did you increase it to, if you don't mind me asking?
I normally use up-to-the-moment builds (downloading 10/07 ad I write) and my battery life has been reasonable - up to two days total with light use. Seems to me to be a matter of making sure you're not running too many (any?) battery-hogging apps (BetterBatteryStats has been enormously helpful in this respect).
Unfortunately, I was unable to play with anything last night due to homework. I did, however, purchase and install BBS and JD. I'm actually at work right now, so I can't really post much other than a few screenshots.
Sent from my SAMSUNG-SGH-I747 using xda premium
Cuddlesy said:
What did you increase it to, if you don't mind me asking?
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I increased it from 384 to 486. So far it seems to have helped a lot. I'm actually about to try a couple different ROMs and see how they go. Wish me luck :cyclops:
dpav02 said:
The problem is, I really actually do like the TouchWiz interface (I know I know, I'm one of the few).
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You are not alone, I enjoy the functions/features of the OTA ROMs.
Notification accessible when in full screen apps, the multi-window screen lets you "clear all" and access task manager&Google Now, the stock dialer has more efficient functions(Displays all calls from a contact if selected, slide right/left to call/send sms)
But going back on topic, I set my cpu to be conservative but I'm not sure if that'll save battery.
I want to be able to game when at work but not have the power-saving setting limit it yet still be able to last me a day. The OTA ROMs' power-saving feature was able to do that.