Develop Bugs

How reach 2-3 days of battery with CM7?

Some people claim that, what you do ?

I'm pretty sure there's two possibilities:
1) they're exagerating
2) they barely use it
Peanuts ^^
Sent from my 1Ghz CM7 Defy

use GSM data only when you want and i am sure it will give you atleast 2 days..
If u dont get calls at all(5-6 calls a day), then you may get more than 3 days easily.
And dont forget to calibrate the battery after flashing a new ROM.

crakeron said:
I'm pretty sure there's two possibilities:
1) they're exagerating
2) they barely use it
Peanuts ^^
Sent from my 1Ghz CM7 Defy
Click to expand...
Click to collapse
the last time i checked, my phone only used about 0.5-0.6% of battery power per hr when in deep sleep (wifi, bluetooth and data all off). that equates to about 7 days from full charge!
technically that's how long my battery can last if i don't use the phone at all. so 2-3 days if used lightly is definately not exagerating

7days???
my defy can last 1day only!

Switch off data, wifi, gps.
Reduce screen brightness. (Display backlight consumes most of the battery)
Undervolt the cpu.
Use the phone as little as possible.
I'm pretty sure you can hit 2 days with this.
The maximum i've been able to get is 2 days. I got this only with minimal usage that i could manage. So it depends on how much u use the phone.

Buy a Nokia from the late 90's if that's all you do with your phones xD
The day the word "smart" was added next to phone, it changed everything
Sent from my 1Ghz CM7 + CM9 Defy

not posible, if you have disabled wifi and 3G, the most that is two days would
sorry for mi english

well my status of battery as below
about 2 hours of wifi
playing with phone for tweaks and looks installing apps for more than 5 hours
Around 10 calss more than 50 msging
I m left with 34% after 2 days
I switch flight mode on by 12 and switch it on by 7
Undervalted cpu default values
Juice defender

I think the setvel will make your battery longer

My battery barely lasts a full day with normal use :|
Sent from my MB525 using XDA App

I last 1,5 days with wifi off, 2G and green power...

my defy with latest quarx stable lasts 4-5 days and i never turn it off. Gps, wifi, gsm modem always off and 2G only: i manually activate them when in need.
It goes to deep sleep at night using max 3% of battery. During the day i switch on wifi or gsm module to check emails, gmail, the market and so on for a total of 1-2 hours. Lots of sms and some calls.
Check your sim card and if it's an old one change it with a 128k new one as it drains far less battery (it double your battery life)
Also a good battery calibration is very important (if not done well the phone never goes in deep sleep when it should) and doing 2 or 3 complete carghe/discharge cycles after the first calibration are very helpful.
Give it a try
Bye!

You can use over 2 days with minimum use. When I sleeping, My defy requires only 1% of battery an hour!
Sent from my MB525 using XDA App

There's a lot of people that barely use his phone.
in a day i have the wifi on 6hs. send a receive a lot of sms. maybe a litle call. play a litle of angry birds and at the end of the day i have 30-40% of batery

anyone tried MIUI vs CM7 battery use ?
well on CM7 when i put screen off it goes to deep sleep
where as on MIUI when screen is off it still shows that it uses cpu @ 300mhz
i dont know whats wrong i feel that it uses battery more..
anyone any idea ?

My 'spare defy' (without SIM, only WIFI) reaches multiple times of uptime.
So turning the radio off or (at least) switching data connections off increases battery live a lot!

asn39 said:
well on CM7 when i put screen off it goes to deep sleep
where as on MIUI when screen is off it still shows that it uses cpu @ 300mhz
i dont know whats wrong i feel that it uses battery more..
anyone any idea ?
Click to expand...
Click to collapse
you must have left something on that prevents it from going into deep sleep. i always have the following off:
1. data
2. wifi
3. bluetooth
4. gps
5. background data
i only turn them on on-demand, ie, when i want to use them. i don't use "pushed" email or auto sync features.
if you don't see deep sleep in cpuspy on a high percentage, you won't get good battery life.
edit: some apps that run in background might prevents it from going into deep sleep as well. check to see if that's the case for you when using miui.

well so i moved to cm7 and boom...
jh20 said:
you must have left something on that prevents it from going into deep sleep. i always have the following off:
1. data
2. wifi
3. bluetooth
4. gps
5. background data
i only turn them on on-demand, ie, when i want to use them. i don't use "pushed" email or auto sync features.
if you don't see deep sleep in cpuspy on a high percentage, you won't get good battery life.
edit: some apps that run in background might prevents it from going into deep sleep as well. check to see if that's the case for you when using miui.
Click to expand...
Click to collapse
Theres no deep sleep...max it uses 300mhz...i use setvsel to use default...shud i flsh SBF and try Cm7 again ??

[Q] 8h battery life (on idle)

Hi all!
How do I find what exactly is draining the battery?
Ie. is there an app or something that can tell me what exactly is doing the damage?
(Settings - About - Battery use is not very helpful: now i know that it's Android System and Cell standby.)
It used to work perfectly fine for up to two days with wifi, 3g and sync. Up until cca a week ago. Now, if 3g is ON, the phone gets really warm and eats battery life in just a few hours. Wifi, on the other hand, can be on (sleep policy: never off) and i still get 1-2 days of battery life.
Specs:
Wildfire
CM7 nightly 256 *
latest radio *
* doubt any of these two is the culprit - trying to resolve the battery issue i updated my CM7 nightly (v.80 or so) to the latest one (v.256). Full wipe as always. That didn't do the trick. That's when i found some posts on xda suggesting that flashing the radio might help. Tried that too. No joy.

Try with these 2 apps. It should provide an overview:
CPU Spy (To see if your phone downclocks automatically or not. An 8 hour battery life on idle doesn't suggest it to me)
http://forum.xda-developers.com/showthread.php?t=1011497
Better Battery Stats (Important - You can check the Wakelocks and actually see the process name which is consuming CPU cycles / battery. Its all explained nicely in the OP)
http://forum.xda-developers.com/showthread.php?t=1179809

I am using CM7 Nightly 256. I'm getting a good battery life (1 day approx) I recommend you to remove unwanted apps, disable autosync, disable gps when not in use. And ya use the apps recommended by 3xeno as above
And consider using SetCPU. Screen-off profile.

Thanks for the suggestions. Looking into it at the moment with better battery stats (and it's documentation). Will post a solution if i find one.

i have the same problem with battery...must charge daily.

same problem here
Running CM7 7.0.3,and after starting to use the ICS theme,started to get battery drain.
BBS shows the progress "suspend" work extensively,but can't figure out which program is causing this.
CPU Spy show 84%-85% in deep sleep,which means something is running back there.
See attached Jpegs.
Will a newer kernel flash do the trick?or will a Rom upgrade?
Thanks in advance.

Try to use CPU Master Pro. In Screen Off Profilles try to put 264Mhz Max CPU frequency
Before that my battery live 3 days

yohaim said:
Running CM7 7.0.3,and after starting to use the ICS theme,started to get battery drain.
BBS shows the progress "suspend" work extensively,but can't figure out which program is causing this.
CPU Spy show 84%-85% in deep sleep,which means something is running back there.
See attached Jpegs.
Will a newer kernel flash do the trick?or will a Rom upgrade?
Thanks in advance.
Click to expand...
Click to collapse
84-85% on deep sleep is fine. As per your screenshot, are you getting 18Hrs battery life (From 100 to 40)? If that's the case, it's actually pretty good battery life.

i wanted to ask. do heavy themes consume too much battery?

In my eyes any colours on the screen would use more battery than a black image. It's probably not that noticeable though.
Sent from my HTC Wildfire using xda premium

Scratch0805 said:
In my eyes any colours on the screen would use more battery than a black image. It's probably not that noticeable though.
Sent from my HTC Wildfire using xda premium
Click to expand...
Click to collapse
Blacks are more energy efficient on LED screens only, since there the LED can just turn off.
Here the LCD needs to display a black color.

[Q]Completely wipe phone

Hey, I'm trying to fix my battery drain during light use. Having screen on for not even 5 minutes eats around 2% of my battery. I've calibrated, gone through many different ROMs [GB(CM7,MIUI,Sense) and ICS] with full wipes(format and wipe). leading to my question in hand... how do I completely wipe my phone? I visit the wifi settings and see a wifi history that were from a pretty long time ago(before wipes). This leaves me thinking I have not fully wiped my phone in between flashing. Does the google account save wifi history or something? Thanks for any tips!

My problem still persists any help is appreciated
Sent from my Inspire 4G using XDA

You seem to be wiping your phone correctly. The WiFi settings are backed up under the Google account and are restored when you add the account again. It also backs up other settings, wallpaper, and app data of certain apps. Here's an easy way to fully wipe your phone (including the SD card app files in .android_secure) - http://tinyurl.com/66fc8og
It's called super wipe script and it is from the Android Revolution HD ROM thread, thanks to mike1986.
Sometimes the battery loses it's ability to hold charge after sometime. This happens when the battery is quite old or due to various reasons that I don't know. You'll need to get a new battery then.
On the ROM side, a good ROM+kernel combo gives the best battery life. Instead of using a plethora of apps to save battery, finding the right ROM & kernel combo and choosing a good CPU governor and min-max frequency settings will give you much less battery drain. I don't use any battery saving apps, but I run a great ROM (CM7.2 RC1) with an awesome kernel (LorDModUE 8.9b7), with smartassv2 governor running 122-1152 Mhz and a few build.prop tweaks.
You can try out my combo and see if you're getting any better battery life. The max I've gotten recently is 14 hours of heavy use with 4 hours of screen on time, wifi on for 75% of the time and a lot of web browsing and video watching. I usually keep my phone in 2G mode and only change to 3G when I need to use the internet. 3G drains the battery really fast. On average I get around 13 hours heavy use, 1 day medium use and more than a day of light use (with mobile data off unless when necessary). I get around 1% per hour drain in standby.
You can try this ROM VictoryMod by victoryo. It has my same ROM+kernel combo I've mentioned before + build.prop tweaks. Change the CPU governor to smartassv2 with 122-1152 Mhz frequency. It gives great battery life.
Among the Sense ROMs, Android Revolution HD with klquicksall's kernel and LeeDrOiD HD with LeeDrOiD's kernel give awesome battery life.

Thanks for the reply! I greatly appreciate it. As for my ROM, I've been using the latest LeeDroid, but the battery drain seems to be happening across all the ROMs I've tried recently. I never install battery saving apps, and I keep default kernels and settings. The problem is probably with my battery, I've had this phone since last May, so almost a year. I'll see if I can get this problem sorted out. Thanks again!

battery life

Ok so ive installed alot of custom roms on my wildfire s and on all of them my battery life sucks. If im on wifi my battery goes down 10 to 15% in like 2 to 3 minuets. Do you guys think its because of the roms or i just need a new battery. Please help.

Type in the call menu : *#*#4636#*#* and go to battery menu.Wrote there all the informations.
Do you full charge your phone ?(about 2-3 hours)
Try to delete the batterystats.bin file via CWM.
If i helped you,click "Thank's" button.Have a nice day

thugnastie said:
Ok so ive installed alot of custom roms on my wildfire s and on all of them my battery life sucks. If im on wifi my battery goes down 10 to 15% in like 2 to 3 minuets. Do you guys think its because of the roms or i just need a new battery. Please help.
Click to expand...
Click to collapse
10 - 15 % in 2 minutes? WTF?
Are you sure your battery isn't faulty?
Even in worst conditions my battery never drained that fast.
Anyways here are some tips:
-Charge phone to 100%
Go to CWM and delete battery stats.
- Dial: *#*#4636#*#*
Go to phone information, In preffered network type Select GSM auto PRL.
- Use juice defender or something which would turn off wifi whenever its not being used.
- Make sure all the accounts aren't set to push as it takes a lot of battery.
- End processes by going to Apps-> Running services.
- Don't use heavy widgets on homescreen or launchers.
- Brightness to auto and timeout time must be less.
I could remember just these. But I guess if it's true that your battery is draining that fast most probably your battery is faulty. Get a new one.

sounds like a faulty battery.

Kill/Uninstall Apps
Yeah, I had this problem :/
What I did was
- download a battery saver app, It closes mobile networks when you're not using them.
- Set the screen to a low but visible setting
- Uninstall some of the memory draining apps
- and kill some of the RAM munching apps.
Hope this works :L

ill try some of them

Don't download a battery saver app, it'll just use cpu cycles and battery even more.
Manually turn off mobile data and wifi when you're not using them.
Don't overclock.
Lower your screen brightness.
And ultimate solution, get an extended battery.
-----------
"You can overclock as much as you want, your phone will always seem too slow."

What kind of charger are you using to charge the battery? If the charger's voltage and Amp's out put is higher then what the phone can take it could be over charging your phone and charging your phone way to fast. If your charger is normal then I would invest in a new battery, a o.e.m battery is good.

battery running out very fast

i;m on cm 10.1 M3 and my battery running out very fast. On data connection something about 30% in 1h. And its charging very fast full battery in 1h. Can someone help me?

guma55 said:
i;m on cm 10.1 M3 and my battery running out very fast. On data connection something about 30% in 1h. And its charging very fast full battery in 1h. Can someone help me?
Click to expand...
Click to collapse
Dirty Flash?
Low signal area?
From what I know 4.22 has about 1 hour less screen on time than 4.12. Then again, I think we all here can drain about 30% battery in a hour, if we wanted to. What exactly are you doing in that 1 hours time.

battery isn't what it used to be.
4.1.2 was much better battery wise

Some solutions
you can try apps like:
greenify which hibernates background apps and some other apps which are hibernated as your phone goes in standby. (Root)
Ds battery saver which will turn off wifi when the phone is on standby.
Cpu sleeper which turns off one core when phone is on standby (Root)
Battery Calibration (Root)
Lux auto brightness which adjust the brightness and is battery efficient
You can under clock or under volt or even change your screens colour settings. (Root)
Hope these apps and tips help

While i acknowledge that most of battery life is determined by the actions of the user and what apps they use, some ROM/Kernel combos just have notoriously crap battery life regardless of how you cut it. I have found that 10.1 and its stock kernel are one of those instances. Hell, even while using a different kernel and great settings i still have been unable to get the same kind of battery as i can with other combos. Personally, EOS is the complete package of customizability and battery life out of the box for me. Perhaps you should give it a shot. CyanogenMod is just far too dirty.

dking2012 said:
you can try apps like:
greenify which hibernates background apps and some other apps which are hibernated as your phone goes in standby. (Root)
Ds battery saver which will turn off wifi when the phone is on standby.
Cpu sleeper which turns off one core when phone is on standby (Root)
Battery Calibration (Root)
Lux auto brightness which adjust the brightness and is battery efficient
You can under clock or under volt or even change your screens colour settings. (Root)
Hope these apps and tips help
Click to expand...
Click to collapse
All good except for Battery Calibration. That app, and others that operate on the same premise are 100% snake oil. And end user can do the exact same thing that the app does simply by unplugging their phone from the charger after a full or near-full charge. It in no way, shape, or form touches anything related to battery life or battery charge indication.
Sent from my Galaxy Nexus using Tapatalk 2