Normally you would bump charge by having your phone off, charging, etc. Well with the CWM bug that some of us have you simply cant. You dont get the LED light when the phone is off due to the fact that it boots into CWM. Well I found a way that seems to work.
Plug your phone in while its on, charge to full. Have your HTC battery widget up and running also because this will show you the voltage of the battery. Once you hit 100% simply reboot. You will notice your battery will be significantly lower than 100% (mine was dropping to 93%). Charge to full again and repeat. Do this until you see your reboot number at 99% or so after your phone fully loads. You will also notice your voltage of your battery is up by around 200 points....
After you do this open your mobile terminal and get root permission by typing "su" enter (without quotes). Navigate to /data/system/ and type "rm batterystats.bin". Enjoy
Hope this helps
I read about this somewhere else, but its good to have this available as a post for people who want to get a good extra hour or more out of their phone.
psufan5 said:
Normally you would bump charge by having your phone off, charging, etc. Well with the CWM bug that some of us have you simply cant. You dont get the LED light when the phone is off due to the fact that it boots into CWM. Well I found a way that seems to work.
Plug your phone in while its on, charge to full. Have your HTC battery widget up and running also because this will show you the voltage of the battery. Once you hit 100% simply reboot. You will notice your battery will be significantly lower than 100% (mine was dropping to 93%). Charge to full again and repeat. Do this until you see your reboot number at 99% or so after your phone fully loads. You will also notice your voltage of your battery is up by around 200 points....
Hope this helps
Click to expand...
Click to collapse
I wonder how often this will need to be done?
HarlyFan said:
I wonder how often this will need to be done?
Click to expand...
Click to collapse
Generally whenever you switch roms.
BTW after doing this, I only lose about 2% power per hour idle. Before id lose close to 10% easily. The reason for this is because your OS isnt calibrated correctly so it misreads the actual power level.
psufan5 said:
BTW after doing this, I only lose about 2% power per hour idle. Before id lose close to 10% easily. The reason for this is because your OS isnt calibrated correctly so it misreads the actual power level.
Click to expand...
Click to collapse
Thank you thats makes sense, I thought I was doing something wrong because ever since I rooted I started having this problem....
I remember my battery would drop to 93% on my phone when i rebooted it like this. I just tried it and it dropped to 99%. this must mean i have a good battery thanks for this tip now i dont have to have my phone off to bump charge and miss messages and such
Good info. I'm gonna try this as soon as I get my phone charged all the way.
Sent from my ADR6400L using Tapatalk
When I type in /data/system it tells me permission denied. Any idea why?
Sent from my ADR6400L using Tapatalk
Thanks for the info!! I have been trying to squeeze every bit of life I can out of my battery. Cant wait to get home to try this out now.
Aerogriff said:
When I type in /data/system it tells me permission denied. Any idea why?
Sent from my ADR6400L using Tapatalk
Click to expand...
Click to collapse
In terminal type "su" ... if you arent getting a # as your prompt you arent rooted or failed to give your terminal root permissions when the prompt came up on your screen.
From there you would type this:
cd /data/system/
rm batterystats.bin
Would it be possible to just gscript the whole command into one script? No having to type out the whole command.
Sent from my ADR6400L using XDA App
ddgarcia05 said:
Would it be possible to just gscript the whole command into one script? No having to type out the whole command.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
I guess but why? Its literally 5 seconds of typing and you can do it through ADB or a terminal app, and you only do it once after all the bumping.
I don't know if other people tried this. But when I would shut down my phone, and it would go into CWM when it got plugged in. I would unplug it. Boot it up. Shut down again, and give it a few extra seconds to make sure it was completely shut off. Then plug in. And it would charge fine.
Sent from my ADR6400L using XDA App
Thanks for posting, I was cooking up a similar method in my head, but would have skipped the power off/reboot part.
Is the deletion of batterystats.bin really necessary? I know that it's thrown around all over the web about how it helps battery life, but I've never seen anyone post a definitive guide to what this file is for. I'm not sure how to open it for myself in a human readable-format, but with a text editor, it looks like it's simply a log of what processes were running for how long. How does wiping your usage history (stats) improve battery life?
I'd love to be better educated about batterystats.bin, but it seems to me that it's more a placebo effect and urban myth that it does what we're told it does. I've asked on numerous forums but no one can ever answer. Maybe someone here knows...
What's the HTC battery widget look like? I can't seem to find it.
Sent from my ADR6400L using XDA App
ddgarcia05 said:
What's the HTC battery widget look like? I can't seem to find it.
Sent from my ADR6400L using XDA App
Click to expand...
Click to collapse
brwose your widgets and at the top you have to click download more, it will be the first entry on that list.
Is the htc battery widget good about not killing your battery life?
this is probably a dumb question but what is mobile terminal?
Is that the same as going into clockwork then into advanced and wiping battery status?
Related
My icon in the notif bar looks like 80% and it is 40% lol. I don't get it.
hah2110 said:
My icon in the notif bar looks like 80% and it is 40% lol. I don't get it.
Click to expand...
Click to collapse
Strange, I haven't noticed this.
1) What phone are you using
2) What ROM are you running
3) Have you wiped your phone along with the cache?
akapoor said:
Strange, I haven't noticed this.
1) What phone are you using
2) What ROM are you running
3) Have you wiped your phone along with the cache?
Click to expand...
Click to collapse
Almost every Android phone. It is a known problem.
I don't seem to have an issue with it.
When it reaches 75%, my bar is 3/4s. When it's 50, its half-way...etc...etc...
hah2110 said:
Almost every Android phone. It is a known problem.
Click to expand...
Click to collapse
Awsome job answering 3 questions with a random statement.
I know the phone stores the info about the battery in a file. This file includes the max charge the battery can charge too. There is a method somewhere on these forums that show how to drain your battery, wipe the file, then do a full charge so the phone can relearn the battery and the correct settings get saved.
I believe flashing new roms and doing storage wipes can cause this file to be removed and created with false info.
WoZeR said:
Awsome job answering 3 questions with a random statement.
I know the phone stores the info about the battery in a file. This file includes the max charge the battery can charge too. There is a method somewhere on these forums that show how to drain your battery, wipe the file, then do a full charge so the phone can relearn the battery and the correct settings get saved.
I believe flashing new roms and doing storage wipes can cause this file to be removed and created with false info.
Click to expand...
Click to collapse
No... It has nothing to do with this. Every Android phone I've had... Regardless of whether it is brand new, stock, rooted, flashed, new kernel, anything... Doesn't matter.
May I know how many android phones you previously had?
not trying to flame btw.. but i dont have that case with my phone.. and this is my first phone
You have tokinda program the Lion Batt internal charger first, you charge them full->run till dead--> repeat process 2 times and then the system will be way more accurate. Try this and reply in about 3 days the results.
lagu805 said:
May I know how many android phones you previously had?
not trying to flame btw.. but i dont have that case with my phone.. and this is my first phone
Click to expand...
Click to collapse
John512 said:
You have tokinda program the Lion Batt internal charger first, you charge them full->run till dead--> repeat process 2 times and then the system will be way more accurate. Try this and reply in about 3 days the results.
Click to expand...
Click to collapse
You guys are still missing it. The ICON is not accurate but the internal sensor is. Jeebus. Look at these links... and it seems as my answer is in the first two sentences:
http://senk9.wordpress.com/2010/06/07/android-app-of-the-day-battery-left-widget/
http://www.androidjunkies.com/index...ets-you-keep-watch-of-your-power-app-reviews/
Honestly, if "it" truly bothers you, why not just put the overlay ontop so you get the "real" percentage.
It's work just fine for me, usually +/- 3% at most, works great on froyo.
Calibrate if it is way off
Sent from my HTC Magic using XDA App
I'm trying to understand how android calculates battery percentage, and from my testing it seems that the battery meter is hard coded into each particular phone model. This link seems to kinda verify this.
http://www.android-x86.org/documents/howtoconfigurebatteryservice
Does anyone know where in the system the battery file is located? Either the battery driver, or the algorithm it uses, or even a stats file. Anyone able to point me in the right direction? Thanks.
Daveenna said:
It's work just fine for me, usually +/- 3% at most, works great on froyo.
Calibrate if it is way off
Sent from my HTC Magic using XDA App
Click to expand...
Click to collapse
How abouts do you calibrate the visual battery indicator at the top of the notification bar to be within 3%??
Are you talking about something else like the battery charge status reading?
I've experienced the same problem as the OP on all my Android phones as well. It is a problem when you think you have 75% charge and all the sudden you are getting low battery warnings.
same here. Notification Bar battery is hilariously off.
akapoor said:
I don't seem to have an issue with it.
When it reaches 75%, my bar is 3/4s. When it's 50, its half-way...etc...etc...
Click to expand...
Click to collapse
oh yea? mine goes to nine percent...and takes forever for it to shut down. only when i shut down the phone or reboot it, does it not come back on. lol
Today it happened again, my battery is around 30%, I let it charge, I decide to turn the phone off and on again. When I turn it on, it suddenly shows it's 68% charged. Again I feel, I have lost the ability to fully load my battery since it now thinks it's full while it should be full an hour of charging later.
Can anyone tell what the hell is going on?
This happened to me before, see: http://forum.xda-developers.com/showthread.php?t=1074093
its happen to me too..
battery around 10% and after reboot while charging its become 40%
weird...
cm7.02+netarchy 1.3.1 cfs
Good to hear there are more people with this issue (don't take it personal).
This is a serious issue, I feel my battery life i becoming shorter and shorter.
Come on, anyone?
Sent from my Nexus S using XDA App
My battery life is **** now due to this bull****
Sent from my Nexus S using XDA App
And it happened again, from 7% to 36 %. A real bug here.. why does nobody take this serious...
same here... hope there is a fix for this
If your phone is rooted, you can try to re-calibrate the battery by:
Charge the phone normally until it says Charged on the lock screen (you can turn on wi-fi in order to get more "fully" charge)
Turn off the phone, it will continue charging. Wait until the battery icon does not animate anymore (press Power button once to see the charging progress)
Turn on the phone, use adb shell or Root Explorer (or File Expert) and navigate to /data/system/
Delete the file named batterystats.bin
Reboot the phone
You can wipe battery stats in recovery, under the advance menu.
Sent from my Nexus S 4G using XDA Premium App
Im aware of that solution, but I don't want to root..
Sent from my Nexus S using XDA App
I've owned 3 Android devices and all 3 exhibited this behavior from Cupcake up to Gingerbread. Just ignore it because soon as you think it's stable it will revert back to doing it again. Just something I've learned to live with at this point.
riichii said:
Im aware of that solution, but I don't want to root..
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
If you're saying this is *really* serious then rooting is no big deal I guess
styckx said:
I've owned 3 Android devices and all 3 exhibited this behavior from Cupcake up to Gingerbread. Just ignore it because soon as you think it's stable it will revert back to doing it again. Just something I've learned to live with at this point.
Click to expand...
Click to collapse
When my battery jumps I just keep using the phone until it dies and then recharge it. Crazy thing is, when it jumped from 12% to like 30%, my phone operated for a few hours while I texted and gamed on it so I don't really care that much. I have also yet to see any signs of deterioration.
riichii said:
Im aware of that solution, but I don't want to root..
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Just one question, that puzzles me; why you don't want to root you phone?! Rooting is no biggie. And given the fact that this is a big prob for you, I suggest that you give it a try.
Moderate Use
Doctorz V8
Stock kernel
No voltage changes or clocking aside from what comes with the RoM.
Auto screen brightness.
Main difference is Background Data is off for everything but Market.
Sent from my SGH-I997 using Tapatalk
What do you mean by background data and how do you set that?
Sent from my SGH-I997 using XDA App
Just an observation, but the graph at the top under where it says 1 day 19 hours clearly shows your battery going up 3 times. Which I was just going to pass up but I have a bunch of shots of my battery stats and none of them go up.
[IMG]http://i1111.photobucket.com/albums/h472/BadFishCM/SC20110821-130202.png[/IMG]
So if I'm not mistaken you plugged in a couple times.
I seen that as well but I honestly have no idea why. I can assure you it has not been plugged in. I even have a prior screen shot on another battery run that has the same issue.
Sent from my SGH-I997 using Tapatalk
Thats impossible, theirs no way for a phone to charge itself while discharging. Something is screwed up with your battery calibration.
Sent from my SAMSUNG-SGH-I997 using xda premium
Battery Management
Hi, all.
I want to pass this tip along to anyone who want or need to conserve their battery for what ever reasons.
I have gone usually 3 day+ on one charge.
I'm running on stock rom. Froyo 2.2.1
It is rooted though
I use the phone moderately. Text occasionally.
I downloaded an app called "DataSwitch" by TomatoX.
I use wifi when I'm at home or work.
I have dataswitch activated when I don't need constant background data. ?I turn it on when I need to use it for surfing and such.
In Settings, there is also a toggle for background on/off, although I don't use this much.
With the data off, you can still get phone call and text msg.
I usually turn off data and wifi at bedtime.
On the third day, I'm usually down to 35%.
This may also be useful if you are low and can't get to a charge right away.
It may not apply to everybody, but it works for me..esp with only a 200mb data plan. Battery life is great!
lol look at that cell standby use your phone lol
xKrisx said:
Moderate Use
Doctorz V8
Stock kernel
No voltage changes or clocking aside from what comes with the RoM.
Auto screen brightness.
Main difference is Background Data is off for everything but Market.
Sent from my SGH-I997 using Tapatalk
Click to expand...
Click to collapse
Good one. But next time on, it would be more useful if you post the screenshots showing call duration and display time. With just this one screenshot it could have display on for just 5 mins or 50 mins. Its hard to tell.
Just now noticed, the tiny green bars in the screenshot (circled in red) come up when the phone is charging.
I noticed that (at least for my phone) if you connect it to wall charging it would reset the "time on battery" count but if i connected it via usb to pc it was charging, yeah slowly maybe but the timer never reset when connected via usb as if the phone said "well im charging but it doesnt counts since the guy its transfering data"(lmao yeah my phone is smart) so if you wait for 10% battery ans then go usb mode and charge it and use it and repeat i once got displaying 4 days 10 hours on battery haha.
While on my real stats my phone never last more than 18 hours ;/
Sent from my SAMSUNG-SGH-I997 using XDA App
koriotto said:
I noticed that (at least for my phone) if you connect it to wall charging it would reset the "time on battery" count but if i connected it via usb to pc it was charging, yeah slowly maybe but the timer never reset when connected via usb as if the phone said "well im charging but it doesnt counts since the guy its transfering data"(lmao yeah my phone is smart) so if you wait for 10% battery ans then go usb mode and charge it and use it and repeat i once got displaying 4 days 10 hours on battery haha.
While on my real stats my phone never last more than 18 hours ;/
Sent from my SAMSUNG-SGH-I997 using XDA App
Click to expand...
Click to collapse
+ 1
I got my phone to say 2 days 15 hours once. As long as I don't charge it 100% the time on my battery continues to go up. I can plug it in while it has 10% left charge it till its 90% unplug it, and the time won't reset.
If anyone mistook my comment, I'm not really interested in claiming any specific record as the op as stated.
I simply meant to share my thoughts on "dataswitch" app and how I had applied it.
I think found it useful to limit data usage and to conserve the battery when I can't get a charge right away.
You'll be surprise how much battery life background data consumes.
The other part tech part of me also recognizes that battery memory exist...it may be best to "widen" your charge range (0% to 100%) when possible.
Well, I figured out what caused that.. My radio in my truck has a USB port that I plug my phone into to listen to my music. Worked great on my Ipod but it wouldn't charge my Ipod. However today when coming home, I plugged my phone in and it doesnt show to be charging, but when I looked at the Battery Use chart, it deffinately showed an increase.
And here I was thinking I was getting impecable battery life lol.
Oh well.. Sorry for the fuss. However, I will keep trying
xKrisx said:
Well, I figured out what caused that.. My radio in my truck has a USB port that I plug my phone into to listen to my music. Worked great on my Ipod but it wouldn't charge my Ipod. However today when coming home, I plugged my phone in and it doesnt show to be charging, but when I looked at the Battery Use chart, it deffinately showed an increase.
And here I was thinking I was getting impecable battery life lol.
Oh well.. Sorry for the fuss. However, I will keep trying
Click to expand...
Click to collapse
There you go. Mystery solved. Case closed.
more like....busted?
alc630 said:
more like....busted?
Click to expand...
Click to collapse
Can't use a hard word. Looks like he is still new and didn't realize his phone was charging. Well, he didn't realize that the green line in pic meant charging. So he gets benefit of doubt.
stock Froyo...
one charge...for real
lol..light use.
qkster said:
stock Froyo...
one charge...for real
lol..light use.
Click to expand...
Click to collapse
Good one. Capture the display time and call time too please next time on.
qkster said:
stock Froyo...
one charge...for real
lol..light use.
Click to expand...
Click to collapse
And I'm a kung fu panda.
diablo009 said:
Good one. Capture the display time and call time too please next time on.
Click to expand...
Click to collapse
How do I do that?
I tried going into settings, about phone, and battery use. That was the img I got.
I'm not sure how to bring up the charge graph, display time and call time as well...
On stock froyo 2.2.1. Baseband I997UCKH1. Kernel 2.6.32.9
I can try it again in a few days if you can tell me how
I'm also using screenshot from the Market.
I'm new at this so tell me step by step pls.
thnks
qkster said:
How do I do that?
I tried going into settings, about phone, and battery use. That was the img I got.
I'm not sure how to bring up the charge graph, display time and call time as well...
On stock froyo 2.2.1. Baseband I997UCKH1. Kernel 2.6.32.9
I can try it again in a few days if you can tell me how
I'm also using screenshot from the Market.
I'm new at this so tell me step by step pls.
thnks
Click to expand...
Click to collapse
Click on individual elements listed to show more details about them.
This will likely fix any battery reporting problems that occur and should be done after installing a rom, or whenever you think it is needed. It will not actually make your battery life better. It may seem like it as before resetting it may have said 1% remaining when it was really only half dead
NOTE: you must be rooted, which if you are on this forum you almost definitely are
1. fully charge battery and leave plugged in. click calibrate in this app or manually delete the file yourself: https://play.google.com/store/apps/...yLDEsImNvbS5uZW1hLmJhdHRlcnljYWxpYnJhdGlvbiJd
2. Unplug and let the phone die with normal use
3. charge it fully without a break.
4. done. thank me if it helps
This resets the battery stats. It was noted awhile back from someone at Google that this doesn't help with the battery. I used to use this app all the time after a flash and then a couple of months back i stopped using it and really haven't noticed a difference. I'm not trying to ruin your moment of helpfulness but I really don't think it helps with the battery.
Sent from my SAMSUNG-SGH-I997 using xda premium
tmease1 said:
This resets the battery stats. It was noted awhile back from someone at Google that this doesn't help with the battery. I used to use this app all the time after a flash and then a couple of months back i stopped using it and really haven't noticed a difference. I'm not trying to ruin your moment of helpfulness but I really don't think it helps with the battery.
Sent from my SAMSUNG-SGH-I997 using xda premium
Click to expand...
Click to collapse
No problem. You are right. This will not help if your battery is actually draining. It only changes what android thinks your battery level is at. this can get screwed up after a flash, depending on many factors of the rom. It also is different with every device. What it helps with is when your stats are off. for example temple run takes 60% of your battery when you play for 5 minutes and you know it isn't running, or it drains fast to 1% then lasts another 6 hours. So if you are noticing poor battery life, make sure it is really bad, not just reported wrong. I will edit the OP to say this more clear.
2. Unplug and let the phone die with normal use
3. charge it fully without a break.
Click to expand...
Click to collapse
This is what really fixes the issue. Clearing battery stats with an app or through cwm is redundant.
I don't recommend discharging all the way though
I thought fully charging the battery reset the stats. No?
Sent from my MB865 using XDA
KEB64 said:
I thought fully charging the battery reset the stats. No?
Sent from my MB865 using XDA
Click to expand...
Click to collapse
I think partially, but I know for a fact this process works great and isn't that hard. It resets things better from my understanding because it totally wipes stats instead of just re-calibrating some things
hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
Get your phone to 100% battery and then just play whatever you like until it completely dies. Then, plug it in to charge and dont touch it until it gets back up to 100%. That is supposed to increase the battery lasting time by 20%. It only works once...so dont do it 5 times hoping for results. This is supposed to be done when you first get the phone, but if its never been you've never done it, its worth the shot.
Sent from my SGH-T959V using xda app-developers app
rygtuu said:
hey im a noob here so im sorry if this has been asked before but right now i upgraded my phone to ics and the battery life is horrible and im too cheap to get a battery extender so is there anything i can do to improve it or am i just going to have to deal with it?
Click to expand...
Click to collapse
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
lumin30 said:
Let the ROM 'soak' in. It'll get better. You are probably busy messing with it figuring out all the features which is normal and makes the battery seem terrible. But overall it is pretty good.
And the post above is an old wives tale these days. It's funny to read people still recommending it.
Click to expand...
Click to collapse
Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats. If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
By this time, the day is over and it needs to be charged anyways. I plug it into the charger before bed and let it charge up all the way with nothing running (no wifi, no bt, no background apps running).
After that charge, battery life seems soo much better. ymmv. it would be good to know if that works for you too.
Otherwise, everyone uses their phone differently, and some people install stupid apps that have intensive background services running that eat batteries, then complain about the rom sucking instead of introspecting about how they use their phone.
bhundven said:
Kinda, when you first flash with a factory reset, you don't have a battery stats file. This is another good reason to flash when your battery is 100% charged. When Senior Members here say "soak in", they are saying that the first boot all of the system apk (application packages) are cached to /cache. Doing too much while these apps are being cached screws up the statistics of the battery stats.
Click to expand...
Click to collapse
Just to clarify - battery stats file have nothing to do with battery performance and the battery stat file "is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point)." Google Engineer Dianne Hackborn
ahh ok thanks guys ill do what you guys said and see if it helps
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
mike-y said:
you can also install one of the battery saver apps on the market, like juice defender or similar. They will typically help and some can control how often background services are allowed to collect data.
Click to expand...
Click to collapse
These arent as helpful as they use to be. I have seen and challenged people to run with and without and the added battery life is either very minimal or actually worse with these apps.
Battery saver apps where created when android was very young and had bad management of the battery power. The way it works now it should lower the power to the radios low enough to save battery but not completely shut off the radios. Shutting them off will actually harm battery life because it takes so much more power to turn them on and off repeatedly then to let them idle.
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
Sent from my SGH-T959V using Tapatalk 2
Download Gemini from the play store and manage the autorun for apps. That's what I do and it saves quite a bit of battery
Sent from my SGH-T959V using xda app-developers app
solrac1212 said:
no i think it was more designed for froyo and gb because if you try those battery savers in froyo or gb you can see it works and battery last long but if you test it in ics or jb (i have test juice defender with jb in the sgs3) and what i can see its that sometimes it lags (not always just when you like two or three apps open which for me in the sgs3 was weird) and data sometimes hangs i mean it doesn't load pages
Sent from my SGH-T959V using Tapatalk 2
Click to expand...
Click to collapse
Ill agree with you on froyo but gingerbread towards the end was much better.
The biggest thing is people dont realize how much power is used to start and stop things. Letting them idle will use battery but not nearly as much if you start and stop many times a day. Now at night if you want to turn off those things then yeah go for it. But if you are a frequent phone checker then starting and stopping them everytime will chew through the battery.
A good example is this, its summertime go outside and look at your electric meter when the ac first turns on. It will spin reeal fast for a minute or so while the system gets everything going then it will slow down. This same thing applies to your phone and its radios. Each time you shut it off it has to go through a process so you dont get corrupted data. And when you turn it on it has to use a lot of battery to make sure things dont get messed up and get to the proper operating form.
So any app that shuts off the radios manually and such will end up costing you battery if you are a power user.
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
Sent from my SGH-I727 using xda app-developers app
thomas.raines said:
If you can follow the steps exactly as i wrote them, then install the team FAH-Q kernel found in the dev section...
Sent from my SGH-I727 using xda app-developers app
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I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
justiz33 said:
I put FAH-Q kernal on AOKP and it seemed to help a bit. I was using systempanel and it said facebook was sucking cpu at night while the phone was resting... so i took off facebook for the moment to see if any other apps/processes could be causing a drain.
side note:
I spend 15-20 min in the morning going through stuff on my phone. Then I will listen to music in the car on my way to work 35 min. My phone will be at 80% by the time i walk in to work. I check things during the work day once and a while and by 2pm I will be around 40%. leaving work I will have 35-30% .... ok i'll just quit now and say running 12hrs i will have about 15% left. I think I am an average phone user. not sure how much everyone else uses theirs.
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Music soaks up a lot of battery as well as display, data, and sync. You can try turning off sync and data when you don't need them. But it sounds like you are doing better. I am still concerned with what else you have running in the background though... however, 12-16 hours isn't bad at all...
Sent from my SGH-I727 using xda app-developers app
bhundven said:
.... If I really want good battery life, I totally wipe, and let the phone sit for 10-15 minutes. I leave usb plugged in till it's 100%, then pull the usb and use the phone until it totally dies.
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What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
HKSpeed said:
What do you mean by totally wipe? do you mean go into recovery to wipe data, cache, and davlik cache? then restore after the battery is fully charged?
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Yes, as well as /system/ and at least .android_secure on your microSD
I would recommend against fully discharging your battery as a matter of course. While this might have been useful in the days of NiCads, deep discharges and heat are the Kryptonite of LiIon batteries.