Database Users

[Attn] battery life tips

As I've noticed people ate flooding the threads with battery issues
I thought some tips might help
1. Wipe battery stats once and only doing it when switching between liberated and cm6, don't do it everytime u flash over a newer version of the rom
2. Use minimal brightness and do not use auto, although it may seem like it helps it doesn't, someone told me this and explained basically using the sensor wastes more batter than it saves
3. Use minimal data and get into the habit of shutting it off right after your done or set it on 2g for those who need the notifications, yes it might take a few seconds more to download but its better than the phone being dead
4. Don't let the phone completely die its bad for the battery, I've got into the habit to charge it every night even if it is full and its shown improvement
5. Leave the thing alone!!! If you need the phone don't play games, or anything else that drains it
Sent from my Liberty using XDA App

To contribute: Lithium batteries are most definitely temperature sensitive. When possible, take it out of your pocket, bag, etc. The hotter it is, the more it drains.

4. Don't let the phone completely die its bad for the battery, I've got into the habit to charge it every night even if it is full and its shown improvement.
^ that is a very important thing as Lithium Ion batteries do not react well to being deep cycled. It is actually recommended that you charge at no less than 35% to prevent the battery " memory" from retaining half charge and reporting full. Almost all new lithium ion batteries are manufactured with a microchip attached to a PCB. This maintains battery function and also allows your phone to report what the current charge, temp, and health of your battery is.
http://www.batteryuniversity.com/partone-12.htm
See the above link for more info on how lithium ion batteries work.
Sent from my HTC Liberty using XDA App

superchilpil said:
As I've noticed people ate flooding the threads with battery issues
I thought some tips might help
1. Wipe battery stats once and only doing it when switching between liberated and cm6, don't do it everytime u flash over a newer version of the rom
2. Use minimal brightness and do not use auto, although it may seem like it helps it doesn't, someone told me this and explained basically using the sensor wastes more batter than it saves
3. Use minimal data and get into the habit of shutting it off right after your done or set it on 2g for those who need the notifications, yes it might take a few seconds more to download but its better than the phone being dead
4. Don't let the phone completely die its bad for the battery, I've got into the habit to charge it every night even if it is full and its shown improvement
5. Leave the thing alone!!! If you need the phone don't play games, or anything else that drains it
Sent from my Liberty using XDA App
Click to expand...
Click to collapse
How do we set Aria to 2g ? I want to turn off 3G however not finding any option. Battery life is terrible with Aria.

if you are on stock/liberated use the dialer to put in *#*#4636#*#* (speed is neccesary)>>phone info>>prefered newtwork type>>gsm only
cm6 has a toggle in the network settings/power manager

I've seen a couple posts, in other forums, that a task killer will hurt battery life more than improve it. Is this true? If so, why?
Also, I wiped battery stats more than I should've. Did that do permanent damage or will it fix itself over time?

Anthony1s said:
I've seen a couple posts, in other forums, that a task killer will hurt battery life more than improve it. Is this true? If so, why?
Also, I wiped battery stats more than I should've. Did that do permanent damage or will it fix itself over time?
Click to expand...
Click to collapse
some programs you cant kill so it makes the cpu jump to 100% which drains the battery
i personally find out which programs pop back up and put them on a ignore list to make it drain less
it isnt permanent it will fix over time just charge it fully and dont let it go past 15% and it should improve over time

If your in a 3g saturated area the 3g will contantly swap towers even with screen off, when i first got my phone i could sit and watch the battery level drop about 1% every 10 seconds to get around this open phones dialer and dial *#*#4636#*#* and under phone status select gsm only you use same method to swap back to WCDMA prefered for 3g if you need to use wifi tether or need high speed but this was like a whole new phone for me battery wise. will be neet if there is an app that enables 3g for like browser or maps or something like that and then swapps back to edge when not using something that would need it. if there is already one out there lemme know i could use it.

ryan92084 said:
if you are on stock/liberated use the dialer to put in *#*#4636#*#* (speed is neccesary)>>phone info>>prefered newtwork type>>gsm only
cm6 has a toggle in the network settings/power manager
Click to expand...
Click to collapse
This worked .. Thanks . I wish there was a widget for this . I am on stock ROM.

if you are on stock/liberated use the dialer to put in *#*#4636#*#* (speed is neccesary)>>phone info>>prefered newtwork type>>gsm only
cm6 has a toggle in the network settings/power manager
Click to expand...
Click to collapse
This worked .. Thanks . I wish there was a widget for this . I am on stock ROM.
Click to expand...
Click to collapse
So download a toggle widget from the market.
Sent from my Liberty using XDA App

ioft said:
So download a toggle widget from the market.
Sent from my Liberty using XDA App
Click to expand...
Click to collapse
afaik none of them play nice with sense, at least the few i tried didn't.

ryan92084 said:
afaik none of them play nice with sense, at least the few i tried didn't.
Click to expand...
Click to collapse
What ones have you tried? I know there is a pretty popular one but I can't think of the name of it.

smoda widget.
Sent from my PC36100 using XDA App

Chr0nicDreamz said:
4. Don't let the phone completely die its bad for the battery, I've got into the habit to charge it every night even if it is full and its shown improvement.
^ that is a very important thing as Lithium Ion batteries do not react well to being deep cycled. It is actually recommended that you charge at no less than 35% to prevent the battery " memory" from retaining half charge and reporting full. Almost all new lithium ion batteries are manufactured with a microchip attached to a PCB. This maintains battery function and also allows your phone to report what the current charge, temp, and health of your battery is.
http://www.batteryuniversity.com/partone-12.htm
See the above link for more info on how lithium ion batteries work.
Sent from my HTC Liberty using XDA App
Click to expand...
Click to collapse
but will charging it overnight bad for it? so it dosnt overcharge? i thought i heard someone say that so i try to charge it before i go to bed then charge more in the morning but i wasnt sure if Li batteries would overcharge or not
edit: nevermind i just read that it is not possible to over charge a batty but it is bad to leave it charging for more than 24 hours because it will over heat and can cause internal damage to battery and to phone

Some battery saving automation
Ran across this a couple of days ago:
http://forum.xda-developers.com/showthread.php?t=807989
Been running it on my Aria on CM6.1-RC1. So far running as advertised. In areas with weaker 3g coverage, switching to 2g has cut my battery usage in about half. I've really only used this to turn off 3g, as I need 2g on all the time for push gmail and im, and am using setCPU for cpu clocking.
DD

1. Wipe battery stats once and only doing it when switching between liberated and cm6, don't do it everytime u flash over a newer version of the rom
Click to expand...
Click to collapse
i am running Liberated FR006, and have no plans on switching to anything else (maybe the official 2.2 release, but not likely). when should/can i wipe battery data? i've had the phone since june and havent wiped it.

Cinderous said:
To contribute: Lithium batteries are most definitely temperature sensitive. When possible, take it out of your pocket, bag, etc. The hotter it is, the more it drains.
Click to expand...
Click to collapse
Interesting. I was wondering about this the other, thinking that perhaps my battery life has gotten worse since I put the phone in a silicone case. Is that perhaps holding heat in/creating overheating and battery drainage?

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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Click to collapse
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
Click to expand...
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.
Click to expand...
Click to collapse
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...
Click to expand...
Click to collapse
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
Click to expand...
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
++++++++ 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
Click to expand...
Click to collapse
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.

Radio post last OTA 2.3.3 power consumption

Do you think the radio part in last OTA 2.3.3 consumes more battery?
I see the battery information consumption much higher in "Phone".
Confirms it for me?
PS. this morning, after 5 hours and 35 minutes battery down to 90%

jackalac said:
Do you think the radio part in last OTA 2.3.3 consumes more battery?
I see the battery information consumption much higher in "Phone".
Confirms it for me?
PS. this morning, after 5 hours and 35 minutes battery down to 90%
Click to expand...
Click to collapse
Well, I'm using ARHD 5.1.3 (based on the official HTC's GB ROM) with radio 12.54.60.25_26.09.04.11_M2 and can say that battery consumtion is siginificantly better than with the Froyo. It's normal when you have less consumption from the phone as a whole to have a higher percentage on the parts that require the same amount of energy. In fact you can optimize the radio software only to a certain amount - it still has to emmit energy as specified by the standards (GSM, UMTS, WiFi) and it still has the same losses in the receivers' amplifiers.

Ok, you are right, but if i compare the battery drain in this rom, i can say that is faster then stock froyo 2.2.1 imho...

I'm so happy someone else noticed it too! I'm having bad battery issues with this update. Took it from charger this morning and currently having 42%. I've done nothing fancy, installed few programs and browsed web. The percentage is going down like crazy

Not a lot of good to you, but I recently switched to LeeDroid's custom Kernel, the difference is night and day. Worth a look.

i see a problem too with my battery after update. i dont know what is the cause. if u find it pls tell here.thk

my radio part also consume much battery, i am ready to flash other radio and see the results.

ozzyo99 said:
Not a lot of good to you, but I recently switched to LeeDroid's custom Kernel, the difference is night and day. Worth a look.
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Click to collapse
completely agree with this. just amazing!

I noticed something strange with the signal levels when using GSM/WCDMA Auto-mode. While on 3G it only had like 1 bar and went straight to GPRS, then suddenly lost GPRS-signal to 0 bars and phone changed it to full 3G mode. It bounced like crazy. I forced it to GSM-mode and surprise, my battery life tripled.
I made a hard reset last night and let my battery die two times, lets see how it goes.

T-Loop said:
I forced it to GSM-mode and surprise, my battery life tripled.
Click to expand...
Click to collapse
Yes you will get much better battery life as the constant trying to locate best signal in WCDMA preferred mode is a big battery drain. Downside is you reduce data speeds.
I wasn't sure if your surprise was genuine or in mock obviousness so have tried to word this carefully.
Sent from my Ericsson T39m

T-Loop said:
I noticed something strange with the signal levels when using GSM/WCDMA Auto-mode. While on 3G it only had like 1 bar and went straight to GPRS, then suddenly lost GPRS-signal to 0 bars and phone changed it to full 3G mode. It bounced like crazy. I forced it to GSM-mode and surprise, my battery life tripled.
I made a hard reset last night and let my battery die two times, lets see how it goes.
Click to expand...
Click to collapse
the reason while in gsm mode you had a longer lasting battery is because 2G (GSM/GPRS/EDGE) Takes a lot less power than umts/hspa/hspa+ to function; this is regardless of what device from whichever vendor/manufacturer you're using.
if you're still having issues, use the fast wipe rom to completely wipe your phone, then run the RUU (root it with gingerbreak)

Mr_JMM said:
Yes you will get much better battery life as the constant trying to locate best signal in WCDMA preferred mode is a big battery drain. Downside is you reduce data speeds.
I wasn't sure if your surprise was genuine or in mock obviousness so have tried to word this carefully.
Sent from my Ericsson T39m
Click to expand...
Click to collapse
It was genuine cos I didn't have same amount of battery drain with Froyo. I always use it in Auto-mode, and with Gingerbread it's awful. I should have mention this in my post, sorry. But the point is, the signal levels went crazy and battery went down. Froyo was almost perfect what comes to this. My battery last 9 hours yesterday, where Froyo 1½ days.
Maybe I should navigate myself to the dev-section and see other solutions.

For some alien reason after upgrading to 2.3.3 , my battery is doubled, if not tripled. Maybe im just lucky that the new radio comes with the update is more suitable with my carrier in my country. I'm now on 3G, autosync , 23 hours after charge and still at 53% , medium use with calling, sms , taking photos and capturing some videos. Before the update my battery dies after like 5-6 hours with 3G and auto sync on. I'm a happy man right now

Ehi guys do you made a factory reset after ota?
I cant see better battery life after two days....
Sent from my Desire HD using Tapatalk

Update to my issue. Seems that hard reset did the magic. I now have 81% of battery, took this off the charger 9 oclock this morning. It's still on Auto-mode like it should be. Maybe it was a cell tower fault or a battery calibration problem.
Sent from my Desire HD

i forced my phone to stay only in wcdma mode and disabled always on mobile data. i wonder if it helps.will see. i wonder what will change if i do a hard reset.i dont think this is an option.

sedatif781 said:
i forced my phone to stay only in wcdma mode and disabled always on mobile data. i wonder if it helpes.will see. i woder what will change if i do a hard reset.i dont think this is an option.
Click to expand...
Click to collapse
also having problems after the update: the situation is this - if I keep wifi on and do not touch the phone, after ~8 hours (during night) I have only 66% battery left and battery use stats says that "Dialer" ate most of the battery. Did not notice this before in batt stats

I did a factory reset on my dhd after ota and also format the sd card, because i had always "Telephone" (dialer) voice on battery stats with high % of usage.
Btw, when my dhd was inactive on desk for 5 6 hours, with froyo 2.2.1 (1.72) the voices in battery stats were phone inactive, standy by ecc ecc, now before the format, the first voice was always "Telephone".
Now i wait for next recharge.

some one tell me!
i had on 2.2 froyo a AURO navigation software, now it does not work!! im so angry now!!!
recommend me other apps tha i can use? maps,navigator?

Pruikki said:
some one tell me!
i had on 2.2 froyo a AURO navigation software, now it does not work!! im so angry now!!!
recommend me other apps tha i can use? maps,navigator?
Click to expand...
Click to collapse
Hi,
See http://forum.xda-developers.com/showthread.php?t=863327&page=53
in my post #523 for a apk file to download. Notice: do not manually update the app in the Android market after you installed the attached file, then you will end up with the same problem.
Just follow the instructions in my post. If you have questions contact me.

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.
Click to expand...
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.

[GUIDE] How I got almost 3 days of battery life on my Nexus S 4G

First and foremost this guide is based around the Sprint Nexus S 4G. If you do not have the Nexus S 4G, Than this guide will probably not help you. =)
Secondly all credit goes to the wonderful people that work endlessly to make these wonderful Roms and Kernels. Without you guys Android wouldn't be what it is today!
Third: Please make a back up and use this guide at your own risk. I don't want to bare the weight of someone turning their phone into a paperweight by using this guide.
Alright, Now lets get to the fun part.
Case you've already forgotten why you're ready this topic. This is my rough how-to guide on getting easily over 2 days out of a single charge on your phone, Very much possible to push 3 or more days depending on use and other varying factors.
What you're going to need to start:
- Rooted Nexus S 4G with a custom recovery like Clockwork mod.
- Flash the following Rom http://forum.xda-developers.com/showthread.php?t=1417499
- Flash the following Kernel http://forum.xda-developers.com/showthread.php?t=1436313
-Flash the following "KL2" Radio update http://forum.xda-developers.com/showthread.php?t=1077168
After you have flashed all the above and confirmed your phone is running stable with all the default settings. Charge your phone to 100% and reboot back into recovery, and WIPE YOUR BATTERY STATS
Now. Lets begin configuring your rom and kernel!
- Install CPU MASTER FREE from the android market https://market.android.com/details?id=com.antutu.CpuMasterFree&hl=en
Set the following on CPU Master
- CPU Speed 800 MAX and 100MIN
- CPU Governor CONSERVATIVE
- and Scheduler set to CFQ
- Make sure to click apply on boot as well
- Now Install NSTOOLS from the Android market https://market.android.com/details?id=mobi.cyann.nstools&feature=search_result
Set the following on NSTOOLS
- DEEP IDLE: ENABLED
- Backlight Dimmer: ENABLED
- Make sure Backlight Notifications are left disabled. It keeps phone from idling properly.
- Leave all other settings alone and make sure to check set on boot
- Now lastly install Antutu Battery Saver from the Android Market
https://market.android.com/details?id=com.antutu.powersaver&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5hbnR1dHUucG93ZXJzYXZlciJd
Activate Battery Saver and set to level 2 battery save. Easy as that.
Basically your done! =)
If you notice your phone has a slightly worse or little to no improvement on the battery this is due to you deleting your battery stats. As you use your phone it will write new stats and you will begin to notice a difference after a few cycles. Just make sure your battery is charged when you wipe them, Let the phone run almost completely dead. Plug it up, Let it charge back to 100%, Unplug it. Rinse and repeat. Just be sure to unplug it when you notice it's fully charged even if you don't plan on going anywhere. Just let it sit and run on battery so that it calibrates the battery stats while it's idle as well.
Now as you should already know your battery life is going to heavily depend on use and SIGNAL STRENGTH. It seems a lot of people don't realize the more signal you have the longer your battery will last. If you're in an area with very low signal it can kill your phone in a matter of hours.
I have attached a screen shot of my battery life using this above method. Other settings I will mention
- WIFI ENABLED and CONNECTED
- Bluetooth and NFC DISABLED
- Automatic backlight control enabled
- Facebook notifcations, Weather and Contacts are the only things set to SYNC on my phone.
- Usage: Light to moderate. This includes a few texts throughout the day. A few phone calls, and a brief checking of facebook every now and then.
If I'm missing anything I will update this post. That is all for now. Happy modding and may this tutorial work the same wonders for you as it did me.
Also I should state that the phone finally died at around 2Days 17hrs on battery. My goal for 3 straight days was cut short after a few 30 minute phone calls and other work I had to do on the phone.
If you have any questions. Feel free to post, or PM me. I'll be here =)

cwayn1989 said:
First and foremost this guide is based around the Sprint Nexus S 4G. If you do not have the Nexus S 4G, Than this guide will probably not help you. =)
Secondly all credit goes to the wonderful people that work endlessly to make these wonderful Roms and Kernels. Without you guys Android wouldn't be what it is today!
Third: Please make a back up and use this guide at your own risk. I don't want to bare the weight of someone turning their phone into a paperweight by using this guide.
Alright, Now lets get to the fun part.
Case you've already forgotten why you're ready this topic. This is my rough how-to guide on getting easily over 2 days out of a single charge on your phone, Very much possible to push 3 or more days depending on use and other varying factors.
What you're going to need to start:
- Rooted Nexus S 4G with a custom recovery like Clockwork mod.
- Flash the following Rom http://forum.xda-developers.com/showthread.php?t=1417499
- Flash the following Kernel http://forum.xda-developers.com/showthread.php?t=1436313
-Flash the following "KL2" Radio update http://forum.xda-developers.com/showthread.php?t=1077168
After you have flashed all the above and confirmed your phone is running stable with all the default settings. Charge your phone to 100% and reboot back into recovery, and WIPE YOUR BATTERY STATS
Now. Lets begin configuring your rom and kernel!
- Install CPU MASTER FREE from the android market https://market.android.com/details?id=com.antutu.CpuMasterFree&hl=en
Set the following on CPU Master
- CPU Speed 800 MAX and 100MIN
- CPU Governor CONSERVATIVE
- and Scheduler set to CFQ
- Make sure to click apply on boot as well
- Now Install NSTOOLS from the Android market https://market.android.com/details?id=mobi.cyann.nstools&feature=search_result
Set the following on NSTOOLS
- DEEP IDLE: ENABLED
- Backlight Dimmer: ENABLED
- Make sure Backlight Notifications are left disabled. It keeps phone from idling properly.
- Leave all other settings alone and make sure to check set on boot
- Now lastly install Antutu Battery Saver from the Android Market
https://market.android.com/details?...1bGwsMSwxLDEsImNvbS5hbnR1dHUucG93ZXJzYXZlciJd
Activate Battery Saver and set to level 2 battery save. Easy as that.
Basically your done! =)
If you notice your phone has a slightly worse or little to no improvement on the battery this is due to you deleting your battery stats. As you use your phone it will write new stats and you will begin to notice a difference after a few cycles. Just make sure your battery is charged when you wipe them, Let the phone run almost completely dead. Plug it up, Let it charge back to 100%, Unplug it. Rinse and repeat. Just be sure to unplug it when you notice it's fully charged even if you don't plan on going anywhere. Just let it sit and run on battery so that it calibrates the battery stats while it's idle as well.
Now as you should already know your battery life is going to heavily depend on use and SIGNAL STRENGTH. It seems a lot of people don't realize the more signal you have the longer your battery will last. If you're in an area with very low signal it can kill your phone in a matter of hours.
I have attached a screen shot of my battery life using this above method. Other settings I will mention
- WIFI ENABLED and CONNECTED
- Bluetooth and NFC DISABLED
- Automatic backlight control enabled
- Facebook notifcations, Weather and Contacts are the only things set to SYNC on my phone.
- Usage: Light to moderate. This includes a few texts throughout the day. A few phone calls, and a brief checking of facebook every now and then.
If I'm missing anything I will update this post. That is all for now. Happy modding and may this tutorial work the same wonders for you as it did me.
Also I should state that the phone finally died at around 2Days 17hrs on battery. My goal for 3 straight days was cut short after a few 30 minute phone calls and other work I had to do on the phone.
If you have any questions. Feel free to post, or PM me. I'll be here =)
Click to expand...
Click to collapse
I thought it was the More Bars you have the more Data Kills Your Battery... but sprints 3G sucks .. some users only experience a .5kbs to 1.0 Mbs (if your lucky) ... that being said I think that's why your battery lasts longer. But then again I'm on Wifi so my battery has lasted all day ^_^ 15% left. Nfc on , Bluetooth off , screen at 50% brightness and heavy usage. Buuuut in your screen shot below your on 3G ... the 2 days.. was it always on Wifi?
- Google

What is your screen on time?
I don't use any "power-saving" apps, just AOKP Milestone 2 with Steve Garon's 1.14 kernel to run 50hrs with nearly 4hrs of screen time.
100/1100mhz, interactive governor, standard voltage, bln/bld on, wifi used whenever available. It doesn't help that my office is in a poor signal area - battery life would be much better if the signal reception bar stayed green all the time.
Sent from my Nexus S 4G using xda premium

iGoogleNexus said:
I thought it was the More Bars you have the more Data Kills Your Battery... but sprints 3G sucks .. some users only experience a .5kbs to 1.0 Mbs (if your lucky) ... that being said I think that's why your battery lasts longer. But then again I'm on Wifi so my battery has lasted all day ^_^ 15% left. Nfc on , Bluetooth off , screen at 50% brightness and heavy usage. Buuuut in your screen shot below your on 3G ... the 2 days.. was it always on Wifi?
- Google
Click to expand...
Click to collapse
Screen time out is on 30 seconds. and Wifi was connected virutally through the entire time, exception was when I visited a friends house which is why in the screenshot it does not say it's connected, However it was still active.

Braneless said:
What is your screen on time?
I don't use any "power-saving" apps, just AOKP Milestone 2 with Steve Garon's 1.14 kernel to run 50hrs with nearly 4hrs of screen time.
100/1100mhz, interactive governor, standard voltage, bln/bld on, wifi used whenever available. It doesn't help that my office is in a poor signal area - battery life would be much better if the signal reception bar stayed green all the time.
View attachment 912363View attachment 912364View attachment 912365
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
Those are very nice stats, Question, On your battery log, What are the massive drops in battery from? low signal or just heavy use on your phone?
Also I believe I'm going to go back an retry my experiment with SmartassV2 governor and On Demand. because I recently read they are better than conservative.
By all means play around with these settings and if you report back something I can approve on I will be happy to update this post and give credit to whoever finds more tricks to improving the battery life even more =)

cwayn1989 said:
Those are very nice stats, Question, On your battery log, What are the massive drops in battery from? low signal or just heavy use on your phone?
Also I believe I'm going to go back an retry my experiment with SmartassV2 governor and On Demand. because I recently read they are better than conservative.
By all means play around with these settings and if you report back something I can approve on I will be happy to update this post and give credit to whoever finds more tricks to improving the battery life even more =)
Click to expand...
Click to collapse
They're from heavy use, probably angry birds or web browsing. The poor signal usually results in much slower drain.
Sent from my Nexus S 4G using xda premium

Braneless said:
They're from heavy use, probably angry birds or web browsing. The poor signal usually results in much slower drain.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
Not saying you're wrong, but based on past experience when I lived in an area where my phone was constantly losing and gaining signal or especially switching between Verizon (Roaming) and Sprint to find a signal, My phone would get very warm and it would cause massive battery drain.

Also in regards to the Sprints 3G speed.
Here in town where I live now, with the new KL2 radio
Edit:
I have attached screenshots of 3G speeds. It seems today when I ran the test the speeds aren't that special, I guess it all depends on network load.

Braneless said:
What is your screen on time?
Click to expand...
Click to collapse
This ^
I can get about 4-5 hrs on screen-on time a day with a full charge before it dies. I couldn't imagine spreading that amount of time over three days unless I was travelling again or something lol
Sent from my Nexus S 4G using Tapatalk

kyouko said:
This ^
I can get about 4-5 hrs on screen-on time a day with a full charge before it dies. I couldn't imagine spreading that amount of time over three days unless I was travelling again or something lol
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
Haha yeah sorry about that guys, That could have been helpful for me to post, but I actually just now realized you could view your screen on hours by clicking it. I feel about stupid now.
After I tweak some more settings and do this little experiment again I'll be sure to actually include that, Seeing as it would have been helpful LOL

Braneless said:
What is your screen on time?
I don't use any "power-saving" apps, just AOKP Milestone 2 with Steve Garon's 1.14 kernel to run 50hrs with nearly 4hrs of screen time.
100/1100mhz, interactive governor, standard voltage, bln/bld on, wifi used whenever available. It doesn't help that my office is in a poor signal area - battery life would be much better if the signal reception bar stayed green all the time.
View attachment 912363View attachment 912364View attachment 912365
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
How do you get your phone to idle so well? I can never get the battery stats to flatline like that. Could it be due to me having BLN turned on as the OP said that causes an idle bug?

tycruickshank said:
How do you get your phone to idle so well? I can never get the battery stats to flatline like that. Could it be due to me having BLN turned on as the OP said that causes an idle bug?
Click to expand...
Click to collapse
There's a possibly you're running an app in the background that's preventing your phone from deep idling. Also try the battery saving app I mentioned in the post as well. It works wonders for some, and others don't notice difference. There's a lot of varying factors.
Have you wiped your battery stats and calibrated your battery with the method I mentioned above? Also you can check to see if your phone is deep idling by going into NSTools and clicking Idle stats.
If you see that your idle numbs are higher than your deep idle stats, Than yes, Something is preventing you're phone from doing so, and I would recommend disabling BLN and seeing if that fixes it.
It could be an issue with BLN and it may not be. My entire post is basically the steps and settings I've figured out and tweaked on my own to achieve maximum battery. I've read around and it seems some others have used BLN without any noticeable difference in battery at all. I guess it really just depends.
Also to the other post, The main reason I run my phone unclocked is basically, in use, I prefer the CPU to be at the lowest max speed possible, while remaining smooth, and I've noticed no lag at 800max, So therefor even when I'm using my phone it's still not going to be pulling as much power as if lets say I had it set to 1000 or 1100. Overclocking is great, Don't get me wrong, but unless you're doing something heavy like gaming or a sheet ton of crazy multitasking, I don't really think it's worth it. That's just my opinion though =)

So you're at home all this time? Then why go through all this trouble and handicapping of features and performance? Why not just plug it in?

jesusice said:
So you're at home all this time? Then why go through all this trouble and handicapping of features and performance? Why not just plug it in?
Click to expand...
Click to collapse
How exactly am I handicapping? I had people asking me how I was getting my battery life and wanted me to post up details on it, so I decided I would. I run an underclocked phone because like I stated in my previous post, I don't see the point in running a overclocked phone unless you're going for benchmarks or doing a lot of heavy multitasking and then by all means, Take the 5 seconds to change your max CPU speed. If you're referring to me not running BLN, That's because for some, including me it keeps your phone from idling and will cause battery drain. It works fine for some, others it doesn't. I'm SURE it's a problem on my end, but until I get it worked out I'm just leaving it off for now.
I've been learning about rooting and modding since the Sprint HTC Hero days. I'm far from a professional and will be the first to admit I'm an amateur compared to you guys, I cannot develop, I cannot code. I'm simply wrote this guide as a reference point for people wanting to get good battery life, That's why I said tweak with the settings and have fun.
The main reason I'm so ecstatic about the battery life, is up until now I've barely been able to get a days normal use out of an android phone even running custom roms and all that good stuff. Now I can actually use my phone throughout the day, Throw it on my dresser at night, and wake up the next morning with still enough charge to use it again without having to worry about plugging it up every night.

Home or not, this info can prove to be very useful depending on an individual's circumstance. I work multiple jobs and when I get home, sometimes I'm so tired I don't even bother to fiddle with my phone's charging cable and just crash on my bed. I've gotten great battery life using similar tactics (went to bed with a 13% charge once, woke up with the thing still alive and kicking), so again, some may find this extremely helpful. Good work!

zeigan said:
Home or not, this info can prove to be very useful depending on an individual's circumstance. I work multiple jobs and when I get home, sometimes I'm so tired I don't even bother to fiddle with my phone's charging cable and just crash on my bed. I've gotten great battery life using similar tactics (went to bed with a 13% charge once, woke up with the thing still alive and kicking), so again, some may find this extremely helpful. Good work!
Click to expand...
Click to collapse
Thank you kind sir. I'm glad you were able to find this poorly formatted guide useful! =D