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What methods do you use to save battery life? Lookin for anything from the most common practices to the least known. Describe complicated methods the best you can. Also looking for methods with the least sacrifice of power and screen brightness.
Sent with my CM7 G2 using XDA tansparent app.
Here you go, make sure you click on the "get 5 more here link"
http://www.goodandevo.net/2010/05/20-tips-to-improve-htc-evo-4g-battery-life.html
Although this article was made for the EVO, most of the tips still work with the G2. Just make sure you don't pay attention to the ones that involves anything dealing with CDMA, that doesn't deal with the G2.
Another article, http://wccftech.com/2010/09/19/busted-5-myths-increasing-decreasing-androids-battery-life/
Check out the other links at the end of it as well.
OP, are you rooted?
If so:
1) custom ROM with no bloatware that runs more efficiently
2) OC/UC capable kernel.
- Use SetCPU to UnderClock if you're really worried about battery. At the least, set a Screen Off profile to 245min/365max. Do a search there are tons of posts about optimal use of SetCPU.
General:
1) JuiceDefender is a great app to auto-toggle your 3G/WiFi radios when they're not in use to save you battery. Very configurable and the Free version is quite solid
2) I'm sure you're aware of the normal turn off WiFi, Bluetooth, GPS, etc. when not in use
3) If you don't need the most up-to-date e-mail/facebook/etc. updates then turn down the sync innerval or turn it off and manual sync when u want.
Judging by your signature if you're running CM7 you're rooted. So I would follow what martonikaj suggested with SetCPU. I have it OCed to 1.516 GHz but with the profiles set I am making beautiful battery times.
Also, something else that I've noticed is that if you have ClockworkMod Recovery you can wipe the battery stats. I do this every time I flash to a new ROM (which is why I stay away from the nightlies) by doing the following:
- Charge the battery to 100%
- Boot to Clockwork Recovery
- Do a Nandroid Backup (just because and just in case)
- Wipe Battery Stats (should be on the front menu, but I'm not in recovery)
- Reboot
- Use your phone as normal but do not charge it until the battery is 100% dead
- Put the phone on the charger and let it charge with the phone off
- Once the phone is charged, boot it up and use it normally (you can charge whenever now)
This will remap the battery stats and give a more accurate usage. It may be wonky the first couple days, saying you have 100% battery then dropping down to like 83%, but it gets more accurate after the building period. When I first OCed I was getting crap battery life, even with the profiles set. But after wiping the battery stats and regoing my phone can last usually a 12 hour day of constantly texting (roughly 250 - 300 a day) and having it sync everything about once an hour, and auto fetching emails from my GMail. Oh, and I have the Weather Channel, Twitter, Facebook, and Pandora widgets going on. So yeah, I swear by that
I use wifi whenever possible, reduces the search fro tmo crap network.
I was wondering is someone can help me. I've been using Deck's ROM's for the HTC EVO 4G for some time now and I hear about all these guys getting 20-30 hrs of battery life. I'm currently on 1.2.1 and have never got probably more then 11 hours out of my battery life with heavy or mederate usage. I've updated all my radios, wimax, etc....I've tried different kernels, I've installed vipermod and undervolted, I have CPU profiles. I've installed a new 3F3D driver. I've tried the wake lock fixes and still nothing has changed. Am I missing something here to how these other guys can get that performance out of their batterys. I'd like to post this directly to his thread but this is my first post and I guess I need at least 10 posts. I'm a bit of a noob but can hold my own.
I run decks with tiamat kernel 4.0.5 and I get outstanding battery life. Give this a try then let me know how it works out. Check your accounts to see if anything is synching that's insignificant. Then check your apps update frequencies. Lastly, turn off all of the haptic feedbacks, animations, and effects. Live wallpapers kill a lot of battery too. You might also want to try enabling and disabling auto brightness to see which is more energy efficient. If your overall goal is great battery life, then a lot of the bells & whistles are pointless.
It is nice to be important, but it is more important to be nice.
BluInception3 said:
I run decks with tiamat kernel 4.0.5 and I get outstanding battery life. Give this a try then let me know how it works out. Check your accounts to see if anything is synching that's insignificant. Then check your apps update frequencies. Lastly, turn off all of the haptic feedbacks, animations, and effects. Live wallpapers kill a lot of battery too. You might also want to try enabling and disabling auto brightness to see which is more energy efficient. If your overall goal is great battery life, then a lot of the bells & whistles are pointless.
It is nice to be important, but it is more important to be nice.
Click to expand...
Click to collapse
I've tried tiamat 3.3.7, 4.0.5, and 4.0.6 and have got the same results with all three. I've tested each and one of these over about a week period. Currently I am trying SavagedZen 2.2.1 and up til this morning it hasn't changed much. I've took off all auto syncs. All haptic feedbacks, animations, and effects have been turned off. Never use live wallpapers and have read that lighter wallpapers will conserve battery. Right now I have auto brightness off and down to about 35-40%. I did however just checked off data enabled about 2 hrs ago and seem to have got better battery since. So far I'm at 82% with about 4 hours of moderate use. (mostly texting and surfing the web). I didn't know if there was any other tweaks internally that I'm missing or if it's more of a puzzle with what combinations to use.
Just saw my background data was enabled. I unchecked that as well. We will see how this goes I guess.
It seems like it's definitely data related. I downloaded skype from one of the forums strait to the phone and my battery percentage went from 79% to 68% just for the duration of the download. Is this common?
Do you use an SBC kernel? Have you whipped battery stats in recovery? Have you tried using the kernel governors (smartass, powersave, conservative) without setcpu?
It is nice to be important, but it is more important to be nice.
amase005 said:
It seems like it's definitely data related. I downloaded skype from one of the forums strait to the phone and my battery percentage went from 79% to 68% just for the duration of the download. Is this common?
Click to expand...
Click to collapse
No, not with a rom as good as Decks.
It is nice to be important, but it is more important to be nice.
BluInception3 said:
Do you use an SBC kernel? Have you whipped battery stats in recovery? Have you tried using the kernel governors (smartass, powersave, conservative) without setcpu?
It is nice to be important, but it is more important to be nice.
Click to expand...
Click to collapse
I have used kernels with SBC and without and haven't seen much difference besides the initial 10% loss of battery. I usually I wipe cache, Dalvik cache, and battery stats everytime I flash a new ROM in recovery. I usually do a factory restore too. I've used smartass and savaged zen as governers as well. Currently I'm using savagedzen governer with a max at 1036 and a min at 245. I also calibrate the battery when i flash a new ROM. Currently I'm standing at 60% battery with about 7hrs and 37 min on battery. Probably the best battery life I've seen. I'm still seeing massive drains when I use 3G. I was just on xda forums on my phone for about 5 min. and the battery went from 65% to 60%. If I turn 3G off it stands idle for awhile.
I'm scratching my head trying to think of what will help. You probably won't like this, but when my rom has me stumped with a problem, I wipe and start over. Maybe an extended battery is the answer? They are dirt cheap for the EVO now.
It is nice to be important, but it is more important to be nice.
Yea I was thinking about an extended battery as well. It seems like taking 3G off does wonders for the battery. Are you keeping yours on or off to get great battery life?
Sent from my PC36100 using XDA Premium App
amase005 said:
I have used kernels with SBC and without and haven't seen much difference besides the initial 10% loss of battery. I usually I wipe cache, Dalvik cache, and battery stats everytime I flash a new ROM in recovery. I usually do a factory restore too. I've used smartass and savaged zen as governers as well. Currently I'm using savagedzen governer with a max at 1036 and a min at 245. I also calibrate the battery when i flash a new ROM. Currently I'm standing at 60% battery with about 7hrs and 37 min on battery. Probably the best battery life I've seen. I'm still seeing massive drains when I use 3G. I was just on xda forums on my phone for about 5 min. and the battery went from 65% to 60%. If I turn 3G off it stands idle for awhile.
Click to expand...
Click to collapse
Lowering your max and min cpu frequencies will improve your battery life. I've always used 128 MHz as a min with no ill effects. Ever since I got my evo I've kept the max at 998 MHz and it was plenty fast, but I am currently trying out 691 MHz max and it seems just as snappy so far (battery life was great at 998 MHz max for low or moderate usage, but with heavy usage I've noticed it drains too fast). I'll probably try out some lower max frequencies to see how low I can go without affecting performance.
amase005 said:
Yea I was thinking about an extended battery as well. It seems like taking 3G off does wonders for the battery. Are you keeping yours on or off to get great battery life?
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Use JuiceDefender to automatically toggle your data connection (3g/1x) off when the screen is off. This will dramatically improve your battery life especially when you're in areas with poor signal. If you want, you can set it to turn on the data connection at user-defined intervals so emails, google voice, and anything else that needs a data connection to be refreshed periodically can go through. With the paid version, you can even allow exceptions for programs like google music, pandora, or wireless tether, so they can keep the connection while the screen is off if they're in use.
Ill try juicedefender. I had it before but didn't really know what settings to use. Current battery is doing well. I'm curious to if all these people experiencing 20-30 hrs of battery life have data turned off a alot. I'm currently at about 14 hrs. with about 42 percent left. Thanks for all ur advice.
Sent from my PC36100 using XDA Premium App
amase005 said:
Ill try juicedefender. I had it before but didn't really know what settings to use. Current battery is doing well. I'm curious to if all these people experiencing 20-30 hrs of battery life have data turned off a alot. I'm currently at about 14 hrs. with about 42 percent left. Thanks for all ur advice.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
I can easily get over 40 hours with light usage and over 20 hours with moderate usage, but that's only because of JuiceDefender. Without it, my battery drains like crazy at work where there's really bad reception.
I use the customize profile with mobile data enabled, schedule enabled at a frequency of 30 min, and apps enabled when the screen is off for google music, pandora, and wireless tether. I also enable the text notification which puts the icon in the status bar. I've run into problems when I disabled notification where JD gets shut down in low memory situations, but having the icon in the status bar prevents that. I leave wifi, location, and night mode diabled, but that's just because they're not useful for my usage. I'm sure the other profiles work fine as well, but I just like knowing and controlling exactly what JD is going to do.
Try using saveged Zen with conservative governer, viper mod and other little things people have mentioned
Sent from my PC36100 using Tapatalk
raphenucleus said:
I can easily get over 40 hours with light usage and over 20 hours with moderate usage, but that's only because of JuiceDefender. Without it, my battery drains like crazy at work where there's really bad reception.
I use the customize profile with mobile data enabled, schedule enabled at a frequency of 30 min, and apps enabled when the screen is off for google music, pandora, and wireless tether. I also enable the text notification which puts the icon in the status bar. I've run into problems when I disabled notification where JD gets shut down in low memory situations, but having the icon in the status bar prevents that. I leave wifi, location, and night mode diabled, but that's just because they're not useful for my usage. I'm sure the other profiles work fine as well, but I just like knowing and controlling exactly what JD is going to do.
Click to expand...
Click to collapse
I'm going to run JD all day today with those settings to see what it does for battery life with my data on. Yesterday seemed to be the best battery life I've recieved with data off for the majority of the day. Got about 17 hrs with 39% left. I'm happy with that. If JD can get me something like that without having to toggle with data on/off that will be nice.
Crossrocker said:
Try using saveged Zen with conservative governer, viper mod and other little things people have mentioned
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
I've run viper mod with tiamat before and undervolted 50mv with little or no change in the overall performance of the battery. Any suggested settings for savaged zen using viper mod?
Undervolt as much as you can, all phones are different. As for jd, sorry I forgot about that. It's a HUGE improvement. Your battery can pretty much double. It can be a little annoying in some cases.
Sent from my PC36100 using Tapatalk
Didn't really get to do a full trial on battery life yesterday. I downloaded a Sense Rom and tried some troubleshooting that I read on Deck's page but it didn't work. Today will be the first full day I try JD with 3G on. I will probably try viiper mod tomorrow after the results I get for today. Thank for the help guys.
amase005 said:
Didn't really get to do a full trial on battery life yesterday. I downloaded a Sense Rom and tried some troubleshooting that I read on Deck's page but it didn't work. Today will be the first full day I try JD with 3G on. I will probably try viiper mod tomorrow after the results I get for today. Thank for the help guys.
Click to expand...
Click to collapse
You can't judge in one day.. you have to wait like 3 days of use to let it settle down
Deck's + SZ + SuperCharger script + ViperMod script.
I believe I have found what i belive is just about the perfect setup for this ROM
My evo is lightning fast, in app performance is almost comparable to my xoom
And with heavy usage my battery lasts at least twenty hours
Kernel: savaged Zen 2.2.1 bfs
Setcpu info: Max clock to 1136, try 1152 if 1136 is stable for Max clock, min 245. Savaged Zen governor, screen off profile with interactivex governor and min bumped to 384mhz. Eliminates all screen on lag
Market app: chainfire 3d its a graphics driver that increases all animations, 3d effects efficiency and speed, and improves battery life IMO follow in app instructions and install the driver, make sure to nand backup first and to not have the phone connected to the charger or computer when installing
Market app: battery calibration wipes battery stats to build new ones that are correct for your ROM kernel setup
Advanced setting in settings menu: performance settings, VM heap size set to 48
Market app : SD booster set SD cache to 3000 makes all SD apps and media faster.
Market app : busy box install 1.18.4
After all this install any user apps you wish and run fix permissions in ROM manager or recovery
Its a lengthy setup, but there is much profit to be had. This setup is faster then I've ever seen an evo run and has the best battery life of any ROM kernel combo I've tested.
Sent from my Xoom using XDA Premium App
Hi all!
How do I find what exactly is draining the battery?
Ie. is there an app or something that can tell me what exactly is doing the damage?
(Settings - About - Battery use is not very helpful: now i know that it's Android System and Cell standby.)
It used to work perfectly fine for up to two days with wifi, 3g and sync. Up until cca a week ago. Now, if 3g is ON, the phone gets really warm and eats battery life in just a few hours. Wifi, on the other hand, can be on (sleep policy: never off) and i still get 1-2 days of battery life.
Specs:
Wildfire
CM7 nightly 256 *
latest radio *
* doubt any of these two is the culprit - trying to resolve the battery issue i updated my CM7 nightly (v.80 or so) to the latest one (v.256). Full wipe as always. That didn't do the trick. That's when i found some posts on xda suggesting that flashing the radio might help. Tried that too. No joy.
Try with these 2 apps. It should provide an overview:
CPU Spy (To see if your phone downclocks automatically or not. An 8 hour battery life on idle doesn't suggest it to me)
http://forum.xda-developers.com/showthread.php?t=1011497
Better Battery Stats (Important - You can check the Wakelocks and actually see the process name which is consuming CPU cycles / battery. Its all explained nicely in the OP)
http://forum.xda-developers.com/showthread.php?t=1179809
I am using CM7 Nightly 256. I'm getting a good battery life (1 day approx) I recommend you to remove unwanted apps, disable autosync, disable gps when not in use. And ya use the apps recommended by 3xeno as above
And consider using SetCPU. Screen-off profile.
Thanks for the suggestions. Looking into it at the moment with better battery stats (and it's documentation). Will post a solution if i find one.
i have the same problem with battery...must charge daily.
same problem here
Running CM7 7.0.3,and after starting to use the ICS theme,started to get battery drain.
BBS shows the progress "suspend" work extensively,but can't figure out which program is causing this.
CPU Spy show 84%-85% in deep sleep,which means something is running back there.
See attached Jpegs.
Will a newer kernel flash do the trick?or will a Rom upgrade?
Thanks in advance.
Try to use CPU Master Pro. In Screen Off Profilles try to put 264Mhz Max CPU frequency
Before that my battery live 3 days
yohaim said:
Running CM7 7.0.3,and after starting to use the ICS theme,started to get battery drain.
BBS shows the progress "suspend" work extensively,but can't figure out which program is causing this.
CPU Spy show 84%-85% in deep sleep,which means something is running back there.
See attached Jpegs.
Will a newer kernel flash do the trick?or will a Rom upgrade?
Thanks in advance.
Click to expand...
Click to collapse
84-85% on deep sleep is fine. As per your screenshot, are you getting 18Hrs battery life (From 100 to 40)? If that's the case, it's actually pretty good battery life.
i wanted to ask. do heavy themes consume too much battery?
In my eyes any colours on the screen would use more battery than a black image. It's probably not that noticeable though.
Sent from my HTC Wildfire using xda premium
Scratch0805 said:
In my eyes any colours on the screen would use more battery than a black image. It's probably not that noticeable though.
Sent from my HTC Wildfire using xda premium
Click to expand...
Click to collapse
Blacks are more energy efficient on LED screens only, since there the LED can just turn off.
Here the LCD needs to display a black color.
A bit dated of a post, but most if not all still relevant. We have a lot of non-TW ROMs for this phone which sacrifice battery life for improved functionality, not by choice, but mainly because Samsung's lack of GPL compliance with regards to sharing kernel sources. Our community devs have done an incredible amount of work with their kernel forks, but Samsung's paid development teams obviously have a lot more time and incentive to work on it, and as such our community devs' graciously find even more fixes once source drops, then merge them into the community kernels we're all using. So as we wait in limbo for them to share their JB kernel contributions to our community:
Anyone that wants to add anything to the list, post to the thread and I'll keep collecting.
Workarounds for D710 battery drainers:
battery saver scripts:rmikulus found this sweet piece of development gold: if you know how to run scripts,"Die Hard Battery Calibrator" will calibrate your battery in only about 20 minutes (must be plugged in that entire time)
Probably better to use the latest and greatest here instead, much easier to install, just a simple CWM zip AIO scripts:
Jelly Bean Tweak Pack for Epic 4G Touch Fixes Various Errors
--appears to help battery life and other various issues.
Voodoo LOUDER (paid) supercurio - Project Voodoo
--not battery-related, probably causing opposite effect actually, but many find an issue with headphone audio being maxed out at lower dB than desired. I'll confirm this works on CM10 nightlies.
WiFi : Turn it off when not in use, just like anything else. Tasker does a great job of automating this process.
raise the network scan interval to reduce background wifi radio usage (Rom Toolbox allows build.prop tweaks such as this,)
change the sleep policy for the wifi to Never While Charging to allow wifi connection to die when phone is off (toggle is in the touchkey menu while viewing wifi settings.)
NOTE: WiFi is a more desirable data connection than 4G as far as batt life is concerned. 4G is auto disabled when wifi is on for most ROMs. 4G (WiMax) is a new technology that still has yet to be perfected, not unlike these latest developments in ICS.
4G Radio: Also turn off when not in use. Use the latest modems available. Note that modems won'tt install from ODIN/mODIN flashes, gotta use CWM zip installs.
Haptic Feedback: Turn off haptic feedback, vibration kills. (Particular to CM9 ROM, haptic is set too strong right now, TouchWiz-based ROMs are fine, but if you can live w/o it...)
LED notifications: Another wakelock offender. Turn them off for now, it's one of the reasons the device stays awake when it should be sleeping. Sleep is good.
Get BetterBattery Stats by chamonix : Take a look at it after a long period of uptime without restarting (quick or full) to allow a greater set of data to parse into stats. Some apps you use may be eating away at your battery from the background. Spare Parts Plus and it's root-friendly brother BladeBuddy is also valuable.
Use the latest kernels available. If you're flashing CM nightlies, you're good to go, kernel modifications are updated in the same process.
Touch sounds and screen lock sound: These still cause partial wakelocks , leading to some amount of battery drain. System Settings>Sound menu to turn these off for now. (thx coiledwire)
The CM9 Team put together a similar list with a few things not listed here. Check the 'Power Saving Options' section on the CM9 Blog
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Android-specific:
BatteryStats.Bin This little file keeps a record of your battery usage, power amperage, etc. and every time you flash a rom, it gets wiped. The system's ability to track the exact power level of your battery is DIRECTLY dependent on this file, so if you don't allow the newly flashed system a few days to calculate averages over time, it won't really have time to realize how charged it really is. NOTE: this file has NOTHING to do with improving battery life, only calculating what the battery % shows in the statusbar (and in the battery statistics charts in the system settings menus.) I've sat at 5% battery life for an entire hour with screen on surfing the 'net. No way it was really 5% that entire time.
While wiping battery stats won't increase battery life, it will improve the calculation of the charge, if done properly. Stats are saved in /data, when a ROM is installed, initially the stats will not have much data to extrapolate from, and the battery probably isn't entirely full to begin with, therefore making a mess of a new ROM's recognition of the cell's true charge. It's best to wipe stats when your charge is above 4180mV (E4GT stock battery size.) I've seen mine as high as 4202mV. Also, if you've got aftermarket cells that aren't the same mAH rating, the results will be slightly wonky. Battery Calibration app can set a reminder to flush the battery stat counter file when the phone is charged, if you need to charge with your device on.
I notice that flashing roms with a battery @100% and charging will help in this regard, then once the system is fully booted, unplug it and drain it to 15%, then charge to 100%, then do :
Bump Charging is suggested by HTC developers to potentially DOUBLE your battery life.
Battery Tuning: We're running Lithium Ion batteries. Don't kill it to 0%. Ever. Tip: Condition your new cell phone’s battery to make it last longer (but be sure to condition it properly)
Live Wallpapers and other background services: If you can live without them, turn off the services. Many common apps trigger network connections on a periodic schedule, further causing drain. increase sync periods, or just sync manually.
Sync: Yet another form of background services. If your sync is running all the time from frequent emails, gvoice msgs. etc... and the like, try turning off some of your heavier data tranx and refreshing manually when you need it.
Again, please tack on posts for this thread if you have good additions to make, I'm just trying to collect a one-stop shop of battery life savers, and a place to point newbs when they start trainwrecking dev threads with questions about it. This is my humble way of giving back cuz I was one at one point.
Thanks, some of these tips most users may know but the one that helpped me was the notification light when running cm9! I worked 10 hours a day and cant use my phone but my battery was draining like crazy! Much better!
Solid advice. I do everything mentioned here. I also throw in a bump charge to finish it off..old habits die hard
Sent from my SPH-D710 using Xparent Blue Tapatalk 2
so is bump charging still a valid method? I've read that HTC developers suggest it, but you're saying old habits so I'm assuming you're aware of something about it.
[url="http://forum.xda-developers.com/showpost.php?p=25060053&postcount=1] Bump Charging [/url]
Dudebowski said:
so is bump charging still a valid method? I've read that HTC developers suggest it, but you're saying old habits so I'm assuming you're aware of something about it.
[url="http://forum.xda-developers.com/showpost.php?p=25060053&postcount=1] Bump Charging [/url]
Click to expand...
Click to collapse
Well, its just my routine. I charge to full, power down charge to full, unplug, power on, plug back in. When. I open Battery Calibration app, if battery shows 100% but only like 4110mV instead of 4180mV+ I will unplug and plug back in a minute later then wipe stats when it shows anything over 4175mV and 100% charge...confusing enough?! Lol
Sent from either ET4G or NS4G using Xparent Tapatalk 2
Thanks For the Guide.
I was really dissapointed with ICS.
I was still running EL29- Rooted and was running everyday on 14hrs with Wi-Fi always on. so after seeing that most bugs were fixed on FD24 i updated and yesterday i was running on 5hrs tops with Wi-Fi on.
So i did some suggested tweaks.
Wi-Fi off.( only ON when i need it)
GPS- I unchecked the last to option on the location.
Adjust haptic
uncheck some Sync from Google.
by the way what's? "Internet Sync"
and now.... im at 66% after 7hrs of being unplugged.
Internet sync meaning anything that may transfer data in the background like google talk, weather apps, Skype, etc.
Glad to hear those stats ! Take a screen Cap of the battery stats when it gets below 10% and post here
Sent from my SPH-D710 using XDA
Dudebowski said:
We're currently in a lull period between development phases now that ICS is blowing up all of our E4GT's. Samsung's kernels leave a lot to be desired, hence the current work towards a proper aftermarket kernel. ICS roms are very new, especially the custom ones going on in the dev kitchen right now. Software level ROM coding is one thing, the devs will get that fixed, but ultimately they're dependent on a solid kernel... and one of the biggest problems with the kernel, is that ever-elusive battery life.
so:
God-Tier devs, correct me if I'm wrong, and please add your thoughts, additions, and suggestions below. I'll try to keep a live OP post for a universal E4GT battery tweak guide.
Things that eat up our E4GT battery for now, with workarounds:
WiFi : Turn it off when not in use
raise the network scan interval (Rom Toolbox allows build.prop tweaks such as this,)
change the sleep policy for the wifi to Never While Charging to allow wifi connection to die when phone is off (in spare parts).
NOTE: WiFi is a more desirable data connection than 4G as far as batt life is concerned. 4G is auto disabled when wifi is on for most ROMs.
4G: Also turn off when not in use. Use the latest modems available. Flash with odin/mobileOdin because the CWM flashables sometimes don't stick.
Haptic Feedback: Turn off haptic feedback, vibration kills. (Particular to CM9 ROM, haptic is set too strong right now, TouchWiz-based ROMs are fine, but if you can live w/o it...)
LED notifications: Another wakelock offender. Turn them off for now, it's one of the reasons the device stays awake when it should be sleeping. Sleep is good.
Get BetterBattery Stats by chamonix : Take a look at it after a long period of uptime without restarting (quick or full) to allow a greater set of data to parse into stats. Some apps you use may be eating away at your battery from the background. Spare Parts Plus and it's root-friendly brother BladeBuddy is also valuable.
Suggestion, with disclaimer: Use the latest stock or Rogue kernels and modems. sfhub keeps the most updated modem D/L list . Don't forget that you should not flash ANYTHING from ICS kernel/recoveries yet!!! There are known issues with these kernels, and every last one of them is a beta stage leak from samsung along with a custom recovery and some little tweaks to work with the various ICS roms. The flashing HAS bricked MANY phones! There will be great fanfare and notices from the developer teams once we have an ICS kernel that works. It's mostly dependent on Samsung releasing sourcecode, although there are some teams working on porting the source of the other Galaxy II's... the race is on!
Touch sounds and screen lock sound: These currently cause partial wakelocks in Galaxy S2 ICS ROMs , leading to some amount of battery drain. System Settings>Sound menu to turn these off for now. (thx coiledwire)
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Universally true:
Live Wallpapers: If you can live without electricsheep or the other various animated wallpapers, do so. I can't
Battery Tuning: If you didn't condition your battery when you first got it, good luck. In any event, try to condition it from here on out by burning it out completely (phone won't boot with it) then charge 100%, keep it off charge until it dies again, CWM Wipe Battery Stats, run the battery down again without charge. Repeat the charge/kill cycle a couple times. New kernel or ROM? Start from scratch again. Battery stats are saved in /data, so old stats can mess with a new ROM's recognition of the cell's true charge. Also, if you've got aftermarket cells that aren't the same mAH, you'll only get as good a conditioning as the weakest battery can take. Battery Calibration app can set a reminder to flush the battery stat counter file when the phone is charged, if you need to charge with your device on.
Sync: If your sync is running all the time from frequent emails, gvoice msgs. etc... and the like, try turning off some of your heavier data tranx and refreshing manually when you need it.
EDIT:
Darchstar and the CM9 Team put together a similar list with a few things not listed above. Check the 'Power Saving Options' section on the [url="http://e4gtcm.blogspot.com/p/customization-guide.html] CM9 Blog[/url]
I've also since learned that wiping battery stats does nothing with prolonging battery life. There's numerous articles quoting official Google/Android developers where they explain this flat out It may help your system recognize the true percentage of your charge, but that's about it.
[url="http://forum.xda-developers.com/showpost.php?p=25060053&postcount=1]Bump Charging[/url] is suggested by HTC developers to potentially DOUBLE your battery life.
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Links in your edit post dont seem to work.
I've found that taking the wifi frequency band off of auto and changing to your desired frequency helped my battery when Im on wifi and the phone is sleeping
Sent from my SPH-D710 using XDA
Dudebowski said:
Internet sync meaning anything that may transfer data in the background like google talk, weather apps, Skype, etc.
Glad to hear those stats ! Take a screen Cap of the battery stats when it gets below 10% and post here
Sent from my SPH-D710 using XDA
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Ok here are my screencapture for FD24.
I just updated to FD26 using NoData It looks like preserve all my settings so I'm gonna give it a shot tomorrow , I will report back.
CM9 when you finally get phone to sleep nice and soundly
....or just stick with GB roms that work and stop suffering yourself these ICS leaks.
Some of us have flash addiction. Some of us enjoy bring Guinea pigs for development. I for one just left my last phone running cm7 and couldn't bear the austerities of a stock ROM. The GB twiz hacks are alright, but it doesn't feel like home to me.
Sent from my SPH-D710 using XDA
A few of us are actually doing better with battery on ICS. One problem is that we get so many leaks and ROMs that the battery might not be having a chance to settle
Sent from my SPH-D710 using Xparent Blue Tapatalk 2
Beejis said:
Links in your edit post dont seem to work.
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*fix'd.
im0rtalz said:
CM9 when you finally get phone to sleep nice and soundly
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w00t w00t!
I get pretty good battery on AOKP:
Good thread, thanks for the tips.
Transmission sent from my slim n trim Galaxy S II.
Agree with just about everything. One thing that I disagree with is letting your battery die at all. It actually decreases the life of the battery in lithium ion batteries. Its an old school method for old batteries. Try never going under 15% if possible. Everything else is correct as far as I can tell.
Sent from my SPH-D710 using xda premium
On the topic of battery calibration, if you know how to run scripts, the creator of V6 Supercharger and 3G Turbocharger scripts has also created "Die Hard Battery Calibrator" which will calibrate your battery in only about 20 minutes (must be plugged in that entire time)
http://forum.xda-developers.com/showpost.php?p=18703418&postcount=5021
LordLugard said:
....or just stick with GB roms that work and stop suffering yourself these ICS leaks.
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What he said
Sent from my SPH-D710 using XDA
I have recently installed cyanogenmod 10.1 onto my galaxy s3. The battery life since then has been very poor. If I leave my phone on without even using it, it drains about 1% every couple of minutes. When I look at the battery it says that the process of "phone" is taking up a huge amount of battery. Can anyone tell me why this is or how I can fix it?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I have recently installed cyanogenmod 10.1 onto my galaxy s3. The battery life since then has been very poor. If I leave my phone on without even using it, it drains about 1% every couple of minutes. When I look at the battery it says that the process of "phone" is taking up a huge amount of battery. Can anyone tell me why this is or how I can fix it?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
crayonslayer said:
I have recently installed cyanogenmod 10.1 onto my galaxy s3. The battery life since then has been very poor. If I leave my phone on without even using it, it drains about 1% every couple of minutes. When I look at the battery it says that the process of "phone" is taking up a huge amount of battery. Can anyone tell me why this is or how I can fix it?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Generally these issues are user related and not ROM related.
I was so frustrated with some of the ROMs when I first started out but then realized I was doing a few things wrong (mainly because these ROMs, including CM10 have very decent battery life).
First, I would recommend a clean reflash:
factory wipe / reset
wipe cache (some say twice)
wipe dalvik cache
install ROM
after rom loads, wait 5 minutes (don't touch at all) then reboot
now you must wait.. sometimes it takes 24 hrs or so for a ROM to correctly load.
Not sure how true it is, but some say to now drain battery down, then fully charge.
At any rate, I follow these steps all the time and works great!
Also, keep in mind that most of battery issues are user related.. so think about what settings, apps and kernels are being used on your end before question a ROM. This is why waiting 24 hours or so before installing all of our "crap" will give give the ROM more time to settle.
Hope this help!!!! Happy Flashing
Thanks for the reply. However, I have looked at what apps and processes are draining my battery. And it appears it is the "phone" process that is doing this.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Just to piggyback on spenny88's reply, exactly what did you come from (stock?) and how did you wipe and flash?
This is all key as to how well your device will perform.
xBeerdroiDx said:
Just to piggyback on spenny88's reply, exactly what did you come from (stock?) and how did you wipe and flash?
This is all key as to how well your device will perform.
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I have noticed something similar. I am coming from stock. I am going to guess my battery life is in the neighborhood of 10% less. I wiped everything before I installed CM. That said, this feels so much faster than stock.
Same Battery Issue on p1 (TMobile original Galaxy Tab 7.0)
spenny88 said:
Generally these issues are user related and not ROM related.
I was so frustrated with some of the ROMs when I first started out but then realized I was doing a few things wrong (mainly because these ROMs, including CM10 have very decent battery life).
First, I would recommend a clean reflash:
factory wipe / reset
wipe cache (some say twice)
wipe dalvik cache
install ROM
after rom loads, wait 5 minutes (don't touch at all) then reboot
now you must wait.. sometimes it takes 24 hrs or so for a ROM to correctly load.
Not sure how true it is, but some say to now drain battery down, then fully charge.
At any rate, I follow these steps all the time and works great!
Also, keep in mind that most of battery issues are user related.. so think about what settings, apps and kernels are being used on your end before question a ROM. This is why waiting 24 hours or so before installing all of our "crap" will give give the ROM more time to settle.
Hope this help!!!! Happy Flashing
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Click to collapse
Having the same issue with my Samsung Galaxy Tab P1000 (p1 in Cyanogenmod). "Cell Standby" is taking as much juice as "Screen", and I am using Wifi only. I don't even have a sim card in the device. Wish there was a way to disable Mobile Networks without disabling Wifi via Airplane Mode.
I installed through Rom Manager as upgrade from CyanogenMod 9.1 with wipe. I will try the recommendations above and report back.
Try the latest nightly (or RC4) of CM10.1. The battery life has definitely improved a bit.
Samsung Galaxy s3 intl battery drain cm10.1
I recently installed cm10.1 nightly on my international S3, it has cut the battery life down drastically and seems to drain over 10% an hour, even when not being used.
I've tried everything that i've came across by searching and still haven't had any real gain on battery life. Doing a full wipe and reinstalling doesn't help, and i've given it time for battery to calibrate; no difference. Even with wi-fi and location services off i'm getting a big drain. I've even tried switching to Slim Bean, if anything the battery was worse still.
Firstly i'm getting that Android OS is eating up a large chunk (usually above 60%) and using BetteryBatteryStats i don't see anything out of the ordinary in terms of partial and/or kernel wakelocks. I really don't wanna have to put the stock Touchwiz rom back on but that seems like the ways it's going. Any help would be greatly appreciated. Is there anything else i can try?
i find i get terrrible battery life on AOSP when i restore google through the setup. i skip thru the installation and open the play store to enter my gmail. then, before restoring my apps, i let it charge to 100%. honestly AOSP still doesnt have decent battery life, but it does improve if you play with it and try different things
hapticxchaos said:
i find i get terrrible battery life on AOSP when i restore google through the setup. i skip thru the installation and open the play store to enter my gmail. then, before restoring my apps, i let it charge to 100%. honestly AOSP still doesnt have decent battery life, but it does improve if you play with it and try different things
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I would respectfully disagree with you. I have run a number of ASOP based ROMs and find them better than stock in terms of battery life. Certainly better in terms of not making my eye bleed (as I hate touchwiz, but that is a personal preference). I find that SlimBean gets me the best battery life of the CM based ROMs.
To clarify, I get just over 1%/hour battery drain, when idle (as measured by BBS) with GPS and google sync enabled, mostly on LTE. My phone happily spends almost all the time I am not actively using it in deep sleep.
The recipe to achieve this is to disable google location reporting and history, avoid tons of widgets that constantly update themselves, disable samsung services that you do not use, and monitor battery usage to look out for rogue apps that do stupid thengs, like hold wakelocks when they should be idle. Dropping the minimum frequency to 192 MHz, and going to ASSWAX (CPU scheduler) and ROW (I/O scheduler) also helps.
To get decent performance you do need to install things properly. Which means ensuring that you don't have conflicting settings or random leftovers. I tend to dirty flash updates but you reallly do get better and more consistent performance going through the pain of a complete clean install (format system, clear cache, reload apps from the store) when you are switching ROMs. Only use TiBu to restore app data. Once you do this, in my experience rogue wakelocks are the biggest cause of lousy bettery perfromance, and you can track down and eliminate these. I have around 150 apps loaded and do not run any task manager/autokiller. My phone typically runs without any reboots or power cycles between ROM updates which equates to rebooting every couple of weeks to a month. I have seen over 2 months of uptime.
Certainly should be able to go 16-20 hours between charges which I would consider real world all day functionality. I guess my point is that rock solid stability and all day battery life is possible if you are systematic about how you do things.
crayonslayer said:
I have recently installed cyanogenmod 10.1 onto my galaxy s3. The battery life since then has been very poor. If I leave my phone on without even using it, it drains about 1% every couple of minutes. When I look at the battery it says that the process of "phone" is taking up a huge amount of battery. Can anyone tell me why this is or how I can fix it?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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I have the same problem..... Battery lose 1 % every 2 mins thats terible. :crying:
How could i find a fix ? plz if u have fix yours tell me ???