Database Users

CM5 or CM6 Battery Life ?

Which provides more battery life.
Im on CM5 now and my battery dies SO FAST you can almost see it going down just watching the screen, i have the screen turned all the way down, use only 2g networks. ever tried to under-clock, when i check battery usage says system idle uses 49%
any ideas ?

Are you serious?
Better yet, don't use the phone at all, that might save the battery.
Dude with those settings its like having a 20th Century device.
Flash another ROM or something, try wiping battery stats, it has been suggested all over the forum...
Why do I even bother...when the mods see this youre a gonner anyway.

It's not so much the ROM, its the apps and widgets you have installed. Some are poorly written, some don't play nice with other apps or certain set ups.
All you can do is install a monitoring app like system panel, and remove the apps that are using alot of CPU.
That's what I have done.

eyegor said:
Are you serious?
Better yet, don't use the phone at all, that might save the battery.
Dude with those settings its like having a 20th Century device.
Flash another ROM or something, try wiping battery stats, it has been suggested all over the forum...
Why do I even bother...when the mods see this youre a gonner anyway.
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listen pal what im saying is my battery doesnt last for **** since i flased CM5 so im wondering if thats to be expected with CM5 and maybe fixed in CM6. but yea ur super helping that for the sarcastic reply, next time dont bother. ooh and btw i dont have to use the phone for it to die with in like 10 hours it will be idle the entire time and it will die.
Edit : OH LOOKY (Dev)CM's2.6.34.2(NR-6.35)(v0.63_08/16)(git updated-08/16)
**ONLY FOR NEW RADIO MAGIC-6.35**
Updated comp to 2.6.34.2 code, mic works, power issue is gone
look a possible fix with CM6...smart ass
Rugga said:
It's not so much the ROM, its the apps and widgets you have installed. Some are poorly written, some don't play nice with other apps or certain set ups.
All you can do is install a monitoring app like system panel, and remove the apps that are using alot of CPU.
That's what I have done.
Click to expand...
Click to collapse
and thank you for your helpful reply i will look into the apps i have.
EDIT: Battery usage says system idle is nearly 50% of usage, even after i kill all the apps :[

LOL! Wow, someone's a little edgy...
It's definitely not a "CM5 issue" that would be fixed in CM6 (CM6 is still in RC, CM5 has had several stable releases!) eyegor's suggestion to wipe battery stats was probably good advice believe it or not. Charge full, power off, leave plugged in. Boot into recovery and wipe battery stats. Power down, unplug and start up, let it drain allllll the way.
Check out xda homepage even - a battery calibration post!!

Battery life is pretty variable as you can see in the numerous threads on this topic. CM's forum has one with a poll with most saying CM6 is better, but not a clear cut answer.
I used SystemPanel's monitor function to identify which app was eating battery. It worked great! My biggest offender was Weather and Toggle widget. I loved its customization but its battery gulping was just not worth it. Got rid of it and my battery life is much more consistent.
I also got a cheapie battery off eBay which helped.

Both CM5 and 6 run perfect on my phone. No battery drains.
My point was that you're in the wrong section, pal.

You also might want to watch logcat while the phone is idle or sleeping to see if there are numerous errors or warnings scrolling by when there should be very little activity.

I have a similar issue. Initially I had the rediculous drain, but as mentioned wiping battery stats from recovery fixed it for the most part. Once it says its fully charged and you turn the phone off, let it sit charging overnight. Then wipe the stats in the morning and don't charge again until the phone turns itself off. Only issue I have now is that when I've got my GPS turned on, in use or not, it kills the battery. While in use I get about 2 hours from a full battery to the phone turning itself off. Haven't figured that one out.
Sent from my HTC Magic using XDA App

ok trying the "recovery - wipe battery stats) lets you know how it goes

DonJuan692006 said:
I have a similar issue. Initially I had the rediculous drain, but as mentioned wiping battery stats from recovery fixed it for the most part. Once it says its fully charged and you turn the phone off, let it sit charging overnight. Then wipe the stats in the morning and don't charge again until the phone turns itself off. Only issue I have now is that when I've got my GPS turned on, in use or not, it kills the battery. While in use I get about 2 hours from a full battery to the phone turning itself off. Haven't figured that one out.
Sent from my HTC Magic using XDA App
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thus far ur method has worked ! my battery so far seems to last longer then when i first got the phone LOL
i was playing music at the loudest volume for an our just to test it and it only went down 3 percent battery life
thanks man

No worries. It freaked me out when I first flashed 5.0.8. I use my phone as an MP3 player in my truck with it plugged in to my CD players AUX Jack. Did a 5 hour road trip and only lost around 10% including a few phone calls.
Sent from my HTC Magic using XDA App

eyegor said:
Both CM5 and 6 run perfect on my phone. No battery drains.
My point was that you're in the wrong section, pal.
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Rar! Faux-mod is angry!

Rom with the best battery life

What Rom is getting the best battery life these days

also doesnt matter if its sense or vanilla or stock OTA i just want good battery life

egobuster1 said:
What Rom is getting the best battery life these days
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from what i can tell, battery life is MOSTLY tied to the kernal. Try an undervolted one, i've found they all work pretty well (hydra and KK)

o alright im using kings #2 BFS kernel undervolted and underclocked

I research before I got my DINC so I never used the factory battery from day 1. I have the same size battery but is 1750 power rating... I think Verizon has a newer one which was before I got mine...

egobuster1 said:
What Rom is getting the best battery life these days
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Click to collapse
Not directly related to the ROM. Check out the Hydra kernels. Also, with regards to battery, you need to do some recalibration so it works better. I got the 1750 battery for the DINC and it was dropping battery very fast no matter which ROM/Kernel combination I used. Finally found a thread that discuss how to get the OS to read the battery levels better. As an example, my battery would run down from 100% to 90% within 10-15 mins! After trying the following, everything works better.
Here's the thread: http://forum.xda-developers.com/showthread.php?t=714471&highlight=battery
Here's a summary of what you need to do:
01. Power off phone and change battery to full level (Green light).
02. Unplug the power and plug it back in. It should take another 15-20 mins to go green again (there's a thread discussing this also -- "bump" charge).
03. Turn on phone and go into recovery mode. Remove the battery stats.
04. Reboot phone and use without recharging until the battery drains completed - i.e. phones shuts off. May want to turn it on once it shuts off.
05. Charge normal and you should see a positive change in the battery life.
Hope that helps.

Yeah but how much do you really gain by doing all that? And how often if at all do you have to do it again. I have the 1750 and it seems to depend allot of what kind of signal and which radios are on.

SoCGHOST said:
Yeah but how much do you really gain by doing all that? And how often if at all do you have to do it again. I have the 1750 and it seems to depend allot of what kind of signal and which radios are on.
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Of course if you had bad or no signal, the phone will use up more battery. Normally when you don't have any signal and you check the battery status, the phone tells you to put it in Airplane mode to conserve battery.
For me, it's worth doing because my battery does not drain as fast for my usage. Since I did this over the past 2 days, I've had the phone one on a single charge with about 6 hours of Awake Time (gaming, Internet, phone calls, texting, emails, some GPS usage) and UP time is 22 hours. And the battery is down to 20%. Definitely an improvement for myself so just try it if you like and see how it works out. Everyone's usage is different so it's hard to quantify.

parcou said:
I research before I got my DINC so I never used the factory battery from day 1. I have the same size battery but is 1750 power rating... I think Verizon has a newer one which was before I got mine...
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Those 1750's are no better than the HTC 1500's Check out this website

ToyTank said:
Those 1750's are no better than the HTC 1500's Check out this website
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Click to collapse
Just curious, where does it have info about the 1750s? I have a Seidio Online 1750 so wanted to see the comparison to the stock battery.
Thx.

ecltech said:
Not directly related to the ROM. Check out the Hydra kernels. Also, with regards to battery, you need to do some recalibration so it works better. I got the 1750 battery for the DINC and it was dropping battery very fast no matter which ROM/Kernel combination I used. Finally found a thread that discuss how to get the OS to read the battery levels better. As an example, my battery would run down from 100% to 90% within 10-15 mins! After trying the following, everything works better.
Here's the thread: http://forum.xda-developers.com/showthread.php?t=714471&highlight=battery
Here's a summary of what you need to do:
01. Power off phone and change battery to full level (Green light).
02. Unplug the power and plug it back in. It should take another 15-20 mins to go green again (there's a thread discussing this also -- "bump" charge).
03. Turn on phone and go into recovery mode. Remove the battery stats.
04. Reboot phone and use without recharging until the battery drains completed - i.e. phones shuts off. May want to turn it on once it shuts off.
05. Charge normal and you should see a positive change in the battery life.
Hope that helps.
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bump charging before wiping stats makes no difference. bump charge is still necessary regardless. until htc acknowledges its a problem and fixes it on their end, bump charging is a part of our lives if you want a fully charged battery. unless you use an external charger of course.

I charge externally and I still bump charge tho I don't need to power the phone on and off. Also the bump time is much shorter
Sent from my ADR6300 using XDA App

Juice Defender, download it from the market.

Sky raider vanilla hands down.
Sent from my ADR6300 using XDA App

Sky raider vanilla hands down
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++++++++ 1. I'm easily getting full day usage from stock battery.

juice defender i feel like doesnt really help that much and kind of gets annoying
i was wondering if the vanilla roms were getting better battery life then all the sense roms

egobuster1 said:
juice defender i feel like doesnt really help that much and kind of gets annoying
i was wondering if the vanilla roms were getting better battery life then all the sense roms
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Nah, Virtuous gets really good battery life, especially with the custom kernel built for it.
Does JuiceDefender even function on CDMA phones? I thought it wasn't working

I would also like to know this! What about SetCPU profiles too? I just want the best possible battery life, speed is not very important to me.
So, who has tried out various ROM and Kernel combinations? What have you concluded gets the bets battery life? Thanks!

im in the proccess of downloading and setting up virtous ill report back with different kernel set ups. i just want a rom and kernel set up that will last easily the hole day

Bump charge with or without battery stats wipe doesn't seem to make much difference for me. I plug in at home/car/computer and carry a spare battery. Just wish there was a way to turn off 3g and force 2g with Verizon on CDMA phones. That way I could still have data/internet.

Battery Life

Hungry Man ~
Lately I've been running the latest update of the same ROM (Nonsensikal Froyo - now 15.2) without any CPU apps (no o/c'ing through script either), no autokiller, no battery tweaks (just Juice Plotter) only 1 widget (Fancy Widget Pro), JIT enabled, VM heap @32, compcache @18 (default) and depending on which app I look at, TiB or RE, I have +/-110mb of free RAM, very minimal apps. Also, I upgraded to CFSv9. I even bought a Seidio Innocell 1750mh extended life battery. I recalibrate my battery after flashes ....
Oh yeah, a little more info, I am not a power user, just an average user with poor to ok reception, I tend to use wireless at my house b/c reception out here in the woods ain't good, but turn it off when not needed. I use airplane mode during sleeping hours as well. The max of my battery usage is Display, then And OS.
Ok, now the question ..... If I don't use airplane mode, I get maaaaaay-be 6-8 hours of average phone usage, usually less !!
What finally broke me to PM you now is that (i recently put numbers on my battery icon) while typing a text message earlier (a few minutes tops, not on wireless) I watched my battery click down from 50 to 48 !!!
When I charge my phone full & I easily lose 10% in half an hour (I've tried this with SetCPU, JD, CBT, Super Power, CPUBoost Lite - I think you get the gist) ... and not including airplane mode, I NEVER get more than 6-8 hours of battery life !!!
Is there any knowledge that you can give me on this issue or have I pretty much exhausted my options ? I am this PM short of resigning to crappy battery life
Many Thanks for your time ~
Matt
Swyped from my nonsensikal eris using xda app

What does the phone/Spare Parts say is using all the battery? Have you tried flashing and then using the phone without installing apps (other than the essentials?) Are you leaving the phone idle, screen off, and noticing the same big drop?
You could try going to stock for a bit to see if it improves...or trying a different ROM. Maybe you have a dud battery?
Edit: Sorry, you may have meant this to be directed at someone specifically.

Just an observation. If you're not using anything to overclock the phone maybe the battery life would be better if you at least underclock it. I suggest Conap's CPUBoost Lite, free on the market and here. Just set the minimum frequency to 245760 (my suggestion), and I currently have the screen off Minimum to 19200 and the screen off Maximum to 480000.
Also, I used to use Juice Plotter. I theorized that maybe Juice Plotter wasn't great for my battery itself.

roirraW "edor" ehT said:
Also, I used to use Juice Plotter. I theorized that maybe Juice Plotter wasn't great for my battery itself.
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I noticed the same thing when I used Juice Plotter. I got significantly less battery life when i had it. Try deleting Juice Plotter and see if you get more life out of your battery.

well you've noted your in a poor coverage area, and that is your problem, nothing can completely fix other than moving, but you may want to research flashing a new radio, becareful and check your md5 hash sums
Sent from my FroyoEris using XDA App

rigbyrobot said:
well you've noted your in a poor coverage area, and that is your problem, nothing can completely fix other than moving, but you may want to research flashing a new radio, becareful and check your md5 hash sums.
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Click to collapse
Actually, the Verizon Network Extender can definitely help without moving. http://www.verizonwireless.com/b2c/store/accessory?action=gotoFemtocell
It's $250, but probably a lot cheaper than moving, and it should help with battery life. It does with me - I get 24-32 hours on a 1750 battery, with WiFi on all of the time (I have the old, non-3G extender.)

I'm running Tazz Froyo and get a minimum of 24 hrs on stock battery. I would try changing roms.

Battery life on my eris was never good, that's why you buy a extended battery. I have the biggest one that they have on amazon and my battery can last for five days with average use

doogald said:
Actually, the Verizon Network Extender can definitely help without moving. http://www.verizonwireless.com/b2c/store/accessory?action=gotoFemtocell
It's $250, but probably a lot cheaper than moving, and it should help with battery life. It does with me - I get 24-32 hours on a 1750 battery, with WiFi on all of the time (I have the old, non-3G extender.)
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ohh well forgot about those
Sent from my FroyoEris using XDA App

so my battery has been draining really fast too, but my question is does the battery recalibration work? some people have said their battery drops even faster but is that only the first time?
PS. ive been on xtrrom for awhile now (like a month and a half) and it just started dropping. spare parts says android system is greater than the rest, if that helps

erisx said:
so my battery has been draining really fast too, but my question is does the battery recalibration work? some people have said their battery drops even faster but is that only the first time?
PS. ive been on xtrrom for awhile now (like a month and a half) and it just started dropping. spare parts says android system is greater than the rest, if that helps
Click to expand...
Click to collapse
Yes, it works if you do it propely. Charge phone to 100%, boot into recovery, wipe battery stats, reboot phone. Use your phone as normal until the battery is fully discharged and it shuts the phone off. I sometimes try to turn it back on also just to make sure it is all the way dead. Plug your phone in to charge it, walk away, don't touch it until it is 100% charged. Turn your phone on and use it as normal. It sometimes will take a few times charging it to see a difference. If I missed anything or mistyped anything some one correct me please lol

consistently mediocre battery life even after calibration and undervolt

I just can't seem to crack the battery life conondrum. I've calibrated (charge to 100%, wipe stats, then full cycle).
If I'm listening to music its consistently I'm sucking ~10% an hour, if idling ~4-5%. Which means I'm getting around same battery life as my old nexus one – mediocre, I end a working day with around 30-40%. If I want to go out after work i have to remind myself to charge during the day...
Right now I'm even running a mild setcpu undervolt (with faux123 kernel) and profile (screenoff max cpu 600mhz) but seeing not much improvement if any.
I am on gingerbread AT&T radio so thats not it either... any tips aside from 'use juice defender' (which I don't want to do as I want always on data instant push etc., I know juice defender basically shuts your data radio off)?
Note this is the same with stock gingerbread as well as the ROM and kernel I'm currently on (redpill, faux123 kernel)

I've done everything you have and i'm on a Bell Atrix....i have been looking into this for about a week or more and i just can't crack it either!!! it's driving me nuts and i have spent sooo many hours googling, searching xda and other sites and have tested MANY different methods and still can't seem to figure it out. For me i know its the phone idle...but what it is i can't tell, i have SystemPanel monitoring as as well as watchdog which i alternate with. Flashed the battery calibration fix and calibrated the meter blah blah blah....driving me nuts and i know its not a faulty battery because before i unlocked and flashed 2.3.4 i could get about 30 hours with heavy to moderate use!!!
For the love of god i wish a team of dev's would look into this!!!!!!!!

Honestly none of the faux kernels worked for me... Try gobstopper, stock kernel with watchdog was the only combo to give me good battery life. Not to mention lock sounds works properly, and its fast. All bell users should use it. Seriously... 19+ hours worth moderate usage.
phone idle is still high but it seems to be a slow drain.
Sent from my MB860 using XDA App

a.) not an option for me, AT&T phone
b.) I'm not seeing faux's kernel do any worse than stock kernel, I don't think its the kernel?
c.) yeah I tried system monitor as well, the highest process was opera at 3%.... 3 lousy percent lol

1. Calibrate your battery again (I have posted a guide in the General section)
2. Flash a kernel which allows overclocking, install SetCpu, add battery saving profiles (downclock to 500mhz on screen off, downclock to 800 mhz when battery less than 30%, downclock to 800mhz if temperature higher than 50C)
3. Freeze all MotoBlur bloatware (there's a guide in the general section)
4. Disable data and wifi unless you need it
5. Install Watchdog and set it up according to instructions I provided in my calibration thread.

xploited said:
1. Calibrate your battery again (I have posted a guide in the General section)
2. Flash a kernel which allows overclocking, install SetCpu, add battery saving profiles (downclock to 500mhz on screen off, downclock to 800 mhz when battery less than 30%, downclock to 800mhz if temperature higher than 50C)
3. Freeze all MotoBlur bloatware (there's a guide in the general section)
4. Disable data and wifi unless you need it
5. Install Watchdog and set it up according to instructions I provided in my calibration thread.
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Click to collapse
all your solutions he basically either already did (1 and 2), or stated he does not want to (#4) =P

dLo GSR said:
all your solutions he basically either already did (1 and 2), or stated he does not want to (#4) =P
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Well, if you keep data or wifi turned on at all times, then there's no way you can have something more than mediocre battery life, sorry.
It's not the Atrix'es fault, its the brutal truth with all modern smartphones.

1 personally run ninja speed freak, i get amazing battery life. simply amazing, days on worth of battery!
it is not a kernel issue, i simply dont know exactcly what hack in particular gives ninja the amazing battery life. but im working hard to determing this so i can share it.

samcripp said:
1 personally run ninja speed freak, i get amazing battery life. simply amazing, days on worth of battery!
it is not a kernel issue, i simply dont know exactcly what hack in particular gives ninja the amazing battery life. but im working hard to determing this so i can share it.
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Perhaps, bypassing MotoBlur sign in

I'm not signed into motorblur either.
I do turn off wifi when out, but bluetooth is normally on.
Sent from my MB860 using Tapatalk

wintermute000 said:
I'm not signed into motorblur either.
I do turn off wifi when out, but bluetooth is normally on.
Sent from my MB860 using Tapatalk
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The people in this thread have listed all known steps to improving battery life.
If you really follow all of these guidelines and have bad battery life, you might want to try a battery replacement.
If you are sure your battery is not the problem, you might also want to try a couple of custom roms. Who knows maybe you will get lucky with one of them.

xploited said:
Perhaps, bypassing MotoBlur sign in
Click to expand...
Click to collapse
Is there any way to log off from motoblur once you are in so you can stay offline? Of course any connection that gets cut will increase battery life.

I don't understand all these battery life problems. Its got to be an app you are installing or your battery is buggered!
Admittedly when I first installed 2.3.4 OTA, battery life dropped like a stone, but I drained it flat, and then charged it up again and its been fine ever since.
I'm running on stock 2.3.4 without root, and I have quite a lot going on (IM's/Facebook/Twitter) and I can last well over a day and a half with moderate use, this includes sms and calls.

tehrules said:
I don't understand all these battery life problems. Its got to be an app you are installing or your battery is buggered!
Admittedly when I first installed 2.3.4 OTA, battery life dropped like a stone, but I drained it flat, and then charged it up again and its been fine ever since.
I'm running on stock 2.3.4 without root, and I have quite a lot going on (IM's/Facebook/Twitter) and I can last well over a day and a half with moderate use, this includes sms and calls.
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Battery life is a very subjective issue. One person might be fine with the phone, while the other person will say battery life is terrible with the very same phone.
Besides the obvious drainage problems, it all depends on how you use the phone.

Honestly the best thing that worked for me was turning off "Syncing".
I currently have 3G on, BT on, ETC...
Syncing in the background killed my battery life. Now I usually make it through the day without the need for a top-off...
Sent from my MB860 using XDA Premium App

Im in stock gingerbread and battery life is definitely worse than on stock 2.2.2 and and im basically running the same Apps. I am a heavy user and I used to drop 10% per hour. Switch on at 7am and by 5pm I was changing battery. Now I am switching around 3pm.
That's why I have 3 batteries!
I still think its better than nearly every other device I have owned but that nay be because battery is larger. I dont know why they don't design to put in 2400 mah batteries (my treo 650 had one!).
Sent from my MB860 using XDA App

ekerbuddyeker said:
Im in stock gingerbread and battery life is definitely worse than on stock 2.2.2 and and im basically running the same Apps. I am a heavy user and I used to drop 10% per hour. Switch on at 7am and by 5pm I was changing battery. Now I am switching around 3pm.
That's why I have 3 batteries!
I still think its better than nearly every other device I have owned but that nay be because battery is larger. I dont know why they don't design to put in 2400 mah batteries (my treo 650 had one!).
Sent from my MB860 using XDA App
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The treo 650 also had a thickness double that of the Atrix .

The batteries in your phone are high-capacity lithium-ion batteries. This kind of battery technology cannot be simply reset and “re-calibrated.” When you follow the steps to recalibrate your battery and delete the batterystats.bin file from your phone, you are getting rid of more than what you think… Stored inside that batterystats.bin file, your phone keeps detailed logs of the capacity of your battery and uses it on how it can be utilized more efficiently. By deleting this file, it basically wipes the phone’s memory on what the battery can really do. This actually does damage to your battery by using up valuable charging cycles, all while giving a fraction of battery life and performance.
Now, you might be saying uh-oh, I’ve already re-calibrated my battery! What do I do?!
Well here’s your answer. Use your phone like normal. Yes, your battery and phone wont perform as good as it can for a while, but after a few days, you will notice that it starts doing better and better. Give it time, its trying to rebuild all those logs that you just deleted.

edgeicator said:
The batteries in your phone are high-capacity lithium-ion batteries. This kind of battery technology cannot be simply reset and “re-calibrated.” When you follow the steps to recalibrate your battery and delete the batterystats.bin file from your phone, you are getting rid of more than what you think… Stored inside that batterystats.bin file, your phone keeps detailed logs of the capacity of your battery and uses it on how it can be utilized more efficiently. By deleting this file, it basically wipes the phone’s memory on what the battery can really do. This actually does damage to your battery by using up valuable charging cycles, all while giving a fraction of battery life and performance.
Now, you might be saying uh-oh, I’ve already re-calibrated my battery! What do I do?!
Well here’s your answer. Use your phone like normal. Yes, your battery and phone wont perform as good as it can for a while, but after a few days, you will notice that it starts doing better and better. Give it time, its trying to rebuild all those logs that you just deleted.
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This is the first time I am reading this sort of opinion, though I have read countless info on the subject.
If you want to make such a strong point, you better have source to back up your opinion (article, studies, other source of proof, etc).

These threads are all USELESS without NUMBERS.
Like another person with common sense already stated in this thread, you need to provide numbers.
GB has this improved tool (over 2.2) where you can see how your battery is wasting its juice. Watch those numbers for a few charges and then POST THEM TO COMPARE.
Saying your battery sucks without giving any numbers is like calling a color ugly.
(just in case someone misses the points, without numbers it's hard to compare, since it mainly becomes an opinion at that point)
P.S.- Please don't post "My battery lasts for over 9000 hours." and think that's enough info. Use your head.

How to Optimize battery drain?

Hello,
I use Tytung's ICS 4.0.4 for my T-Mobile HTC HD2 (NAND), I've been using this ROM for months.
As such there is no problem with functioning of the ROM.
But my battery drains at a very fast rate. With 6hrs of use it drains to 20% at lowest brightness and no major applications running (2 applications in background at most).
Data enabled (2G).
What to do? Please help!!
Sent from my T-Mobile HTC HD2 using XDA Premium.

Can you download CurrentWidget from the Play store and give a value in mA? If you mean 6hrs without any usage then that's pretty poor. Try turning on airplane mode to determine whether it's an app or one of your connections that's causing the problem.
In currentwidget, the values should be approximately 4mA drain in standby with any connections enabled and 2mA in standby in airplane mode. Screen on drain varies a lot more.

OK, thanks. will revert back soon.

With screen OFF, networks ON, 2g enabled....drain is 6mA.
With screen OFF, airplane mode ...drain is 5mA.
Sent from my T-Mobile HTC HD2 using XDA Premium.

That's high but shouldn't be causing a drain of 20% in 6 hours. It's probably just draining a lot when you're using the phone, and there's not much you can do other than turning the brightness down which you've done already.

try wiping battery stats through recovery...fully charge your battery then wipe stats and let your battery to get fully discharge before you connect it to a charger for about a week...My battery never lasted more than a half day before doing this...now it lasts more than a day...Hope this works

Okz.. will try this..hope this works.
Sent from my T-Mobile HTC HD2 using XDA Premium.

eliaskammas said:
try wiping battery stats through recovery...
Click to expand...
Click to collapse
I wonder if this myth will ever die..
Google engineer Dianne Hackberry has talked about several myths about the Android operating system, including wiping battery stats.
The reasoning behind that piece of advice was something like this: If you, at some point, did not charge your Android device fully (for example, only to 80%), it would supposedly remember that battery level as “fully charged” – in this case, you’d only ever get to use 80% of your battery, which is of course less than optimal. So, if you wipe the battery stats, usually done in ClockWord Mod Recovery, the device would “forget” the previous level, here 80%, and instead charge to the full 100% once again, thereby re-calibrating the battery. Or, as Hackborn puts it in more technical terms:
The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory.
However, as she explains, that’s not the case. Because those battery stats, stored in the batterystats.bin file, are only used to maintain information about what is using the battery when not recharging. That is, it essentially holds the information displayed in the Settings > Battery screen. Nothing more, nothing less. Thus:
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
What’s more, you’ve probably noticed that the battery usage data is reset once you recharge your device anyway. From this you can correctly deduce that the battery stats are wiped as well – every time your device is recharged. More or less every day. If there was any effect, you would’ve noticed it without going into recovery and doing that stuff. Typical placebo, eh?
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I’m as confused as a baby in a topless bar...

^Whenever someone asks 'how do I reduce my battery drain', ten people immediately jump in with 'CALIBRATE!!11oneeleven!'. No hate directed at whoever posted that advice here, I understand how easy it is to be misinformed (as I was about using SetCPU ), I just think that rumours like this are too easily presented as facts.

NYLimited said:
I wonder if this myth will ever die..
Google engineer Dianne Hackberry has talked about several myths about the Android operating system, including wiping battery stats.
The reasoning behind that piece of advice was something like this: If you, at some point, did not charge your Android device fully (for example, only to 80%), it would supposedly remember that battery level as “fully charged” – in this case, you’d only ever get to use 80% of your battery, which is of course less than optimal. So, if you wipe the battery stats, usually done in ClockWord Mod Recovery, the device would “forget” the previous level, here 80%, and instead charge to the full 100% once again, thereby re-calibrating the battery. Or, as Hackborn puts it in more technical terms:
The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory.
However, as she explains, that’s not the case. Because those battery stats, stored in the batterystats.bin file, are only used to maintain information about what is using the battery when not recharging. That is, it essentially holds the information displayed in the Settings > Battery screen. Nothing more, nothing less. Thus:
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
What’s more, you’ve probably noticed that the battery usage data is reset once you recharge your device anyway. From this you can correctly deduce that the battery stats are wiped as well – every time your device is recharged. More or less every day. If there was any effect, you would’ve noticed it without going into recovery and doing that stuff. Typical placebo, eh?
---
I’m as confused as a baby in a topless bar...
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LOL i was just gonna post but ya beat me to it
i will just add the link to the xda news post about it
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/

Nigeldg said:
^Whenever someone asks 'how do I reduce my battery drain', ten people immediately jump in with 'CALIBRATE!!11oneeleven!'. No hate directed at whoever posted that advice here, I understand how easy it is to be misinformed (as I was about using SetCPU ), I just think that rumours like this are too easily presented as facts.
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Click to collapse
And I shall not tell you how many times I did erase that bloody file before I too learned the truth. :crying:
Kameirus said:
LOL i was just gonna post but ya beat me to it
i will just add the link to the xda news post about it
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
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Click to collapse
Want me to go back and erase it for ya? No biggie...

Lol...
When one doesn't know a thing, he can be easily fooled about it.
Anyways ...Learnt something new today... :thumbup:
Thank you everyone.
Sent from my T-Mobile HTC HD2 using XDA Premium.

NYLimited said:
Want me to go back and erase it for ya? No biggie...
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LMAO no

sonalikagaur said:
When one doesn't know a thing, he can be easily fooled about it.
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As I said to Nigeldg in an earlier post:
NYLimited said:
And I shall not tell you how many times I did erase that bloody file before I too learned the truth. :crying:
Click to expand...
Click to collapse
sonalikagaur said:
Anyways ...Learnt something new today... :thumbup:
Click to expand...
Click to collapse
And that is all that's important.

to sonalikagaur....
obviously as the guys say don't bother trying my advice
to everyone...
at least now I know not to tell anyone about battery stats again...but now there is a wonder in my head...what made my battery last longer than it did before? I wasn't kidding that it lasts half a day longer than before...obviously battery stats didn't make the job...what did.? :-/

eliaskammas said:
to sonalikagaur....
obviously as the guys say don't bother trying my advice
to everyone...
at least now I know not to tell anyone about battery stats again...but now there is a wonder in my head...what made my battery last longer than it did before? I wasn't kidding that it lasts half a day longer than before...obviously battery stats didn't make the job...what did.? :-/
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Click to collapse
I found out something.... usually I used to keep my 2G ON the whole day...but when I switched my data OFF when not in use...my 6hrs...20% battery remaining changed to 8hrs..n 75% remaining.
That's a huge difference.
Can anyone suggest a good app for this? Switching my data OFF automatically when not in use .!!
Sent from my T-Mobile HTC HD2 using XDA Premium.

I think Juice Defender has this functionality built in.

sonalikagaur said:
I found out something.... usually I used to keep my 2G ON the whole day...but when I switched my data OFF when not in use...my 6hrs...20% battery remaining changed to 8hrs..n 75% remaining.
That's a huge difference.
Can anyone suggest a good app for this? Switching my data OFF automatically when not in use .!!
Click to expand...
Click to collapse
I would guess that many so called "battery saver" apps might have it, not really sure.
I don't turn off data when not in use automatically but I do use Tasker to turn it off for several hours while I sleep.

NYLimited said:
I would guess that many so called "battery saver" apps might have it, not really sure.
I don't turn off data when not in use automatically but I do use Tasker to turn it off for several hours while I sleep.
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Yeah Tasker can do this but it's a paid app. Juice Defender is free and can also do the same thing in this case. I agree that Tasker is awesome but not necessarily for saving battery, more for ease of use.

Nigeldg said:
^Whenever someone asks 'how do I reduce my battery drain', ten people immediately jump in with 'CALIBRATE!!11oneeleven!'. No hate directed at whoever posted that advice here, I understand how easy it is to be misinformed (as I was about using SetCPU ), I just think that rumours like this are too easily presented as facts.
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Click to collapse
Could your go into more detail about you're previous misinformation about SetCPU?
Sent from my ZeJstersHD2 using xda premium