Database Users

[Q] Battery Life Changing

I always had the issue of battery life being short as hell, 60ma on standby
i even updated my radio to 2.14* the newest one forgot the name but no luck!
But recently i got good battery life 5ma on standby!!! After i flashed the newest ChuckyRom Lite Rom.
But yesterday it went back to sucking again after i restarted android. i restarted android before, but the thing i did different this time was have the charger plugged in when i booted into android.
So my question is to the people that have excellent android battery life, How do u boot into android? Do you Flash a new rom? Format your memory card? Do you use set cpu? ATK autokill?

chrisizzle492 said:
I always had the issue of battery life being short as hell, 60ma on standby
i even updated my radio to 2.14* the newest one forgot the name but no luck!
But recently i got good battery life 5ma on standby!!! After i flashed the newest ChuckyRom Lite Rom.
But yesterday it went back to sucking again after i restarted android. i restarted android before, but the thing i did different this time was have the charger plugged in when i booted into android.
So my question is to the people that have excellent android battery life, How do u boot into android? Do you Flash a new rom? Format your memory card? Do you use set cpu? ATK autokill?
Click to expand...
Click to collapse
I can easily go a day on one charge. And normally I boot into Android while charging. I don't think it matters tho cuz you have to unplug and replug your charger cable before android recognizes it. I'm running Kumars GTX and have a class 6 micro SD (helps with battery life). I also use set CPU and have a taskiller icon I normally press before I turn my screen off. Also I have 2.12_5 radio and had worse battery with 2.14. Hope this helps,
Sent from my HD2 using XDA App

Android 1/2 day battery
with Custom Windows Builds my HD2 battery is good for 2-3 days
BUT
with Android builds after 1/2 a day or maximum 1 day the battery is game over
When booting into Android - is Windows running in Background and using resources
Then I would understand the drain,...
GreeT`s Erich

ktz2kool said:
. I also use set CPU and have a taskiller icon I normally press before I turn my screen off.
Sent from my HD2 using XDA App
Click to expand...
Click to collapse
Lose the Taskiller icon, it does nothing but harm. First of all it uses extra battery, because most apps you kill will simply re-open quite shortly after, and secondly it may slow down your phone, or generate problems. Android works in a completely different way than Win(Mo/dows), here it's not a good thing to clear up ram.
The only occasion in which you should use a taskiller, is when an app goes mental and you need to shut it down somehow. For all other cases, don't use it. That's not my personal preference, but a fact that all Android-savvy people will confirm.

For me it sucks the battery out when I just use android
Standby I get 8-14mA, once I use some apps for few minutes it jumps up to 150-400mA :S
What can be the cause?

eriche said:
with Custom Windows Builds my HD2 battery is good for 2-3 days
BUT
When booting into Android - is Windows running in Background and using resources
Then I would understand the drain,...
GreeT`s Erich
Click to expand...
Click to collapse
winmo IS NOT running in the background! android is not emulated or s.th. like that.

well maybe it has to do with usa hd2 or euro hd2? i have the usa version
its just realllllly odd that the battery varies sooo much from person to other
i have tried countless things to improve battery, search far and wide in these forums, but no luck.
and when i dont do a thing it does well at 6ma but then all of a sudden it raises to 60ma on standby, when i restart. (60ma is what i always get)
i even got the new sd card from htc free but no luck and its a samsung! (im pretty sure samsung is more reliable, no?)
MAYBE A FILE GETS CORRUPTED that has to do with power management?
just throwing ideas around, anyone have any other theories?

I recently was able to get better battery life, this is my setup
8 gig class 6 microsd
Radio: 2.10_50
WinMO Rom: ChuckyRoom-Tabtastic lite (Put in AIRPLANE MODE before booting Android)
Android: mDeejay froyo Z 1.3 rev.
I am not using setCpu, but I DO USE Taskiller
With this set up I am getting 4-7 mA drain in standby

My tips for battery life are in the FAQ in my sig.

What effects Battery the most?

Been trolling the forums, for a while, and I am wondering.. what effects battery life the most.. type of windows rom? the radio? kernal? or Android build?...
thanks guys.

Antartica or Panama? Where, when, how?
heaetman74 said:
Been trolling the forums, for a while, and I am wondering.. what effects battery life the most.. type of windows rom? the radio? kernal? or Android build?...
thanks guys.
Click to expand...
Click to collapse
Operating system? Screen colors? Flashlight for movies or photos?
Battery - energy loss or charge? Age - recycles from deep discharge? Plugged for longer than needed? Air temperature or silicon cased? Temperature with heavy energy drain?
Not a simple question.
Retired (medical) IT Consultant

As far as software goes, the biggest killers of battery I've noticed have been push notifications and wifi. Turning both of them off almost doubled my battery life. I now have my emails synched every 10 or 15 minutes instead.

In addition to wifi and push, a big one maybe the biggest, which is often overlooked, is screen brightness. These big giant screens burn a lot of battery. Keeping it as dim as you can stand it will actually save quite a fair share of battery

heaetman74 said:
Been trolling the forums, for a while, and I am wondering.. what effects battery life the most.. type of windows rom? the radio? kernal? or Android build?...
thanks guys.
Click to expand...
Click to collapse
YOU THE USER
if you have researched and learned enough to know what needs to be done
then . . . .

huggs said:
In addition to wifi and push, a big one maybe the biggest, which is often overlooked, is screen brightness. These big giant screens burn a lot of battery. Keeping it as dim as you can stand it will actually save quite a fair share of battery
Click to expand...
Click to collapse
I feel silly for not mentioning that one myself now

heres a funny thing i found, i replaced my Apacer 8GB Class 4 card with a Sony 8GB class 4 card. the phone use to hang with the apacer card.
the thing is, ever since i´ve made the change, the phone sucks up twice as much power.

Theres great ways to make your battery last here too:
http://forum.xda-developers.com/showthread.php?t=827762
Especially #8
Calibrating Android's battery read will allow Android to fully charge your battery, and if you have battery profiles in setcpu, then the app will scale your processor speed by a more accurate reading, giving you longer battery life. I did it on the couple of builds I use most, and it really does make a difference
And dont feel silly john, I sometimes take my enormous screen for granted too
Edit: hmmm maybe my class 2 is why i get good battery life, maybe a slower r/w speed sucks less juice?

well, i know all of the normal tricks.. like screen brightness, wifi off, email push...
i am just looking for a windows rom, a radio, and an android rom, to get the best battery life...
thanks again guys.

Have a look at my signature.
Data enabled, push every hour only 5mA in standby.
If it is in airplane mode it only uses 2mA most of the time. That's quiet good

From what I can tell, the single most important factor for better battery life is using an auto boot app, such as Exceller's, to boot into Android soon as possible. I set mine to auto boot in 3sec. If you let WM/Sense boot fully, you will experience higher than normal battery drain; around 60-70 mA drain in standby. Also, try installing Advanced Configuration Tool in WM and enable all options under Power Management. Have tried these techniques with pretty much every WM Rom and Android combo and average around 3-9 mA draw in standby with wifi, sync, gps and data all enabled. This translates to about a day and a half of moderate use for me. Also, remember that Sense builds tend to use slightly more battery than non-sense builds.

This method really works! The simplest way!
reocej said:
From what I can tell, the single most important factor for better battery life is using an auto boot app, such as Exceller's, to boot into Android soon as possible. I set mine to auto boot in 3sec (have asked for and If you let WM/Sense boot fully, you will experience higher than normal battery drain. Also, try installing Advanced Configuration Tool in WM and enable all options under Power Management. Have tried these techniques with pretty much every WM Rom and Android combo and average around 3-9 mA draw in standby with wifi, sync, gps and data all enabled. This translates to about a day and a half of moderate use for me. Also, remember that Sense builds tend to use slightly more battery than non-sense builds.
Click to expand...
Click to collapse
I have trying different things for some times as why my HD2 was always 60mA+ power drain but some others reported as low as 5mA in standby mode. I tried different builds and different settings but none worked. I almost want to flash to change my stock rom or give up the idea of using Android.
Thanks to you! Follow your way, I now only 9mA with my stock rom. A considerable improvement in battery standby.
Thank you very much.

loonglsk said:
I have trying different things for some times as why my HD2 was always 60mA+ power drain but some others reported as low as 5mA in standby mode. I tried different builds and different settings but none worked. I almost want to flash to change my stock rom or give up the idea of using Android.
Thanks to you! Follow your way, I now only 9mA with my stock rom. A considerable improvement in battery standby.
Thank you very much.
Click to expand...
Click to collapse
Glad I could help. Happy Androiding!

my phone tells me power in mV how does this equate to mA?

Droski said:
my phone tells me power in mV how does this equate to mA?
Click to expand...
Click to collapse
It doesn't really, mV is a measure of state (what condition your battery is in), mA is a measure of change (how much power is currently leaving/entering your battery).
Download current widget, free from market, to track the current (= in mA)

loonglsk said:
I have trying different things for some times as why my HD2 was always 60mA+ power drain but some others reported as low as 5mA in standby mode. I tried different builds and different settings but none worked. I almost want to flash to change my stock rom or give up the idea of using Android.
Thanks to you! Follow your way, I now only 9mA with my stock rom. A considerable improvement in battery standby.
Thank you very much.
Click to expand...
Click to collapse
What is an application u see HD2 Android power drain in standby-mode?

PeeHoo said:
What is an application u see HD2 Android power drain in standby-mode?
Click to expand...
Click to collapse
Current Widget. Set it to update every 60 secs, and then leave your screen off for more than 60 secs, turn the screen back on, and check the widget.
Battery drain with screen off should be somewhere between 5-9 mA

Nice tips here guys...
My battery meter in the status bar looks about 60-70% full, but battery widgets say i have about 50%.
Does this mean that I need to calibrate?
I tried to delete the battery stats with Droid Explorer but it seems to be in read only? (It doesnt do anything when i click delete).
I guess I'll set up ADB and delete that way.
Also I seem to get better battery without LED me know, (why do i need this?)
Runnig MDJ revolution, 2.08.50 radio, stock WM ROM.

GeoMil said:
Nice tips here guys...
My battery meter in the status bar looks about 60-70% full, but battery widgets say i have about 50%.
Does this mean that I need to calibrate?
I tried to delete the battery stats with Droid Explorer but it seems to be in read only? (It doesnt do anything when i click delete).
I guess I'll set up ADB and delete that way.
Also I seem to get better battery without LED me know, (why do i need this?)
Runnig MDJ revolution, 2.08.50 radio, stock WM ROM.
Click to expand...
Click to collapse
Just run terminal emulator on your phone and type:
su
rm /data/system/batterystats.bin

oh, you can do this on the phone.
Thanks bro!
I hope to see improvements as my theory that the status bar battery reading vs widget battery reading being so different = it needs calibration.
Edit
I am now using Exceller's auto boot, and the my draw peaks are waaay lower, but the idle has gone up! (60-80 now...)

pssible soloution for battery darain on nand build

ii have been watching my new revived htc desire hd2(means hd2 which runs android) and i've tried a couple of nand builds and dozens of sd builds for the battery life
and here is the result
considering the fact that sd builds use sd cards to operate they use 2 times more battery than nand build
and now my battery lasts almost 2 days more in nand , while in sd builds i couldn't get a day through with it
but due to some rmnet connection problems most of people are experiencing high battery drain like 150ma
if u want to really compare the battery performance u have to put both builds on flight mod and the try them

I'm experiencing high battery drain running AD from NAND.
With: GSM + Data connection (no wifi, no BT), 55mA when idle
In the same configuration running from SD...5-6mA when idle.
Tried to disable data connection when running from NAND, result is 54mA...
I re-calibrate the battery, but still high battery drain...
Don't know where to look for as the NAND configuration regarding power management is exactly the same as when running from SD(screen auto-adjust on like from SD, screen timeout set to 30s like from SD)

could u give a little bit more information about your nand build and the radio
there is also a possibility that programs are struggling in the background
so you'd better try a clean build like nexus one

how to improve power consumption? in standby the phone has peaks 5ma to 50-60ma constantly! How can I do to improve the consumption?
i have MDJ FroYo Revolution v.2.2 [RMNET][kernel:MDJ S9.2 OC
Radio 2.14
I have read that some people do a certain procedure with battery and then obtain the optimization of consumption, you can say, or how to describe me?

m2shakiba said:
could u give a little bit more information about your nand build and the radio
there is also a possibility that programs are struggling in the background
so you'd better try a clean build like nexus one
Click to expand...
Click to collapse
Have a look on my sign
And regarding builds, both NAND and SD builds I used were Desire HD so it should be at least the same.

mordon2008 said:
how to improve power consumption? in standby the phone has peaks 5ma to 50-60ma constantly! How can I do to improve the consumption?
i have MDJ FroYo Revolution v.2.2 [RMNET][kernel:MDJ S9.2 OC
Radio 2.14
I have read that some people do a certain procedure with battery and then obtain the optimization of consumption, you can say, or how to describe me?
Click to expand...
Click to collapse
I followed the procedure:
-Charge the phone until full while the phone is totally off (shut down)
-Boot while the phone is plugged
-Delete the file batterystats.bin
-Unplugged the phone and wait until it is fully empty
-Reboot the phone to completely empty it
-Charge the phone until it's full
Done.

Im experienced high standby drain also. The only cure I found was to reboot the phone with the charger plugged in. If I just reboot it without plugging the charger, the battery drain stays about 50mA
Sent from my HTC HD2 using XDA App

Bingoig11 said:
Have a look on my sign
And regarding builds, both NAND and SD builds I used were Desire HD so it should be at least the same.
Click to expand...
Click to collapse
ok look there are only two factors in the world that can cause battery drain
connection problem that is usually due to unsuitable radio and build
and background cpu involvement in applications that is caused by some applications
and it can be handled by task killer applications
except these two problems what really can cause battery drain?

Bingoig11 said:
I followed the procedure:
-Charge the phone until full while the phone is totally off (shut down)
-Boot while the phone is plugged
-Delete the file batterystats.bin
-Unplugged the phone and wait until it is fully empty
-Reboot the phone to completely empty it
-Charge the phone until it's full
Done.
Click to expand...
Click to collapse
I try and let you know, thanks!

In that final part:
-Charge the phone until it's full
Do I have to charge with phone off or on?

Am I missing something here? The title says "possible solution", but it's just a discussion about the fact that flight mode is the best way to compare SD and NAND consumption.
???

Have you tried the Radio drain fix?
- Enable gps+BT+WIFI
- Have a lock on GPS, wait for wifi and BT to go on
- Disable GPS+wifi+bt
This usually removes the 60ma drain, even if the GPS is off or has never been on.
>Most builds "forgot" to shut it off on start, but without showing the icon.

RedWave31 said:
Have you tried the Radio drain fix?
- Enable gps+BT+WIFI
- Have a lock on GPS, wait for wifi and BT to go on
- Disable GPS+wifi+bt
This usually removes the 60ma drain, even if the GPS is off or has never been on.
>Most builds "forgot" to shut it off on start, but without showing the icon.
Click to expand...
Click to collapse
I did it and worked, at least for a while, I'm just wondering how often I have to do that?

[Q] Dramatic battery drain (Hyperdroid 5.9.0)

Hi everyone,
I have used an older version of Hyperdroid over the past few month, which worked very well for me overall. Usually the battery managed to last a couple of days.
However, after I tried some different Android NAND Roms on my HD2 yesterday, I reinstalled the latest version of Hyperdroid (HyperDroid-CM7-Observant-Opossum v5.9.0) and noticed a dramatic increase in battery usage.
It drains about 10% in less than an hour without using it.
- WLAN off
- mobile data off
- Blutooth and GPS off
Androids battery use overview lists:
Display 35%
Cell-Standby - 33%
Idle 29%
Wi-Fi - 4%
There are barely any additional apps installed.

RoperC said:
Hi everyone,
I have used an older version of Hyperdroid over the past few month, which worked very well for me overall. Usually the battery managed to last a couple of days.
However, after I tried some different Android NAND Roms on my HD2 yesterday, I reinstalled the latest version of Hyperdroid (HyperDroid-CM7-Observant-Opossum v5.9.0) and noticed a dramatic increase in battery usage.
It drains about 10% in less than an hour without using it.
- WLAN off
- mobile data off
- Blutooth and GPS off
Androids battery use overview lists:
Display 35%
Cell-Standby - 33%
Idle 29%
Wi-Fi - 4%
There are barely any additional apps installed.
Click to expand...
Click to collapse
Install currentwidget and place a widget on your homescreen. Tell us the battery drain when the screen is off by setting the refresh interval to around 20, leaving the phone to settle in standby for a minute or so and unlocking it and giving the drain immediately displayed (don't wait for it to refresh again) and it should be around 4ma with everything but the phone function itself turned off. Try it in airplane mode as well, here it should be around 2ma. If you mean high drain with the screen on then you're just going to have to live with it unfortunately.

Nigeldg said:
Install currentwidget and place a widget on your homescreen. Tell us the battery drain when the screen is off by setting the refresh interval to around 20, leaving the phone to settle in standby for a minute or so and unlocking it and giving the drain immediately displayed (don't wait for it to refresh again) and it should be around 4ma with everything but the phone function itself turned off. Try it in airplane mode as well, here it should be around 2ma. If you mean high drain with the screen on then you're just going to have to live with it unfortunately.
Click to expand...
Click to collapse
Yes i would definately check sleep drains. But if its when your phone is on, it may also be an update in the CPU governor settings. I would switch to conservative. Especially if you dont game a lot. You can also try changing your CPU voltage levels.

What's your kernel and governor? Any OC? Maybe the kernel isn't allowing deep sleep.

RoperC said:
Hi everyone,
I have used an older version of Hyperdroid over the past few month, which worked very well for me overall. Usually the battery managed to last a couple of days.
However, after I tried some different Android NAND Roms on my HD2 yesterday, I reinstalled the latest version of Hyperdroid (HyperDroid-CM7-Observant-Opossum v5.9.0) and noticed a dramatic increase in battery usage.
It drains about 10% in less than an hour without using it.
- WLAN off
- mobile data off
- Blutooth and GPS off
Androids battery use overview lists:
Display 35%
Cell-Standby - 33%
Idle 29%
Wi-Fi - 4%
There are barely any additional apps installed.
Click to expand...
Click to collapse
did you do a clean install?did you wipe your battery stats?
if you post some more info about your device then we can help you even more.
i would try changing the governor and then battery calibration (you can find it on the market). i had this rom and if i remember correctly there were some issues with my battery too. i then got the 5.10.0 version and everything became normal again.
or you can upgrade to the latest version 6.0.0. i just installed it runs smooth as hell!!!
good luck!

Even I'm using the same rom and the battery drains heavily only when using applications and playing games. But can anyone help me how to upgrade it to version 6.0 with detailed instructions.
Sent from my HTC HD2 using XDA

Battery life with WP 7.5 / 7.8 - your thoughts?

Hi XDA!
I wonder if anyone is using WP 7.5/7.8 in productive daily environment, as my feeling is that battery life is really short. While fully charged and camera trick applied, i got a drop from 100 to 75% charge while using wifi for around 15 minutes (downloading apps).
With android installed as nativesd, i´m able to use it for max 2 days w/o charging.
What is your experience with these roms?
Thanks for your opinion!

akidone said:
Hi XDA!
I wonder if anyone is using WP 7.5/7.8 in productive daily environment, as my feeling is that battery life is really short. While fully charged and camera trick applied, i got a drop from 100 to 75% charge while using wifi for around 15 minutes (downloading apps).
Click to expand...
Click to collapse
Bit of a waste of a thread. Have your searched? First rule of XDA
Are you sure "camera trick applied" properly?
This battery usage seems a bit extreme with camera trick.
Also, maybe your battery is no good/old

akidone said:
Hi XDA!
I wonder if anyone is using WP 7.5/7.8 in productive daily environment, as my feeling is that battery life is really short. While fully charged and camera trick applied, i got a drop from 100 to 75% charge while using wifi for around 15 minutes (downloading apps).
With android installed as nativesd, i´m able to use it for max 2 days w/o charging.
What is your experience with these roms?
Thanks for your opinion!
Click to expand...
Click to collapse
Got Lumia 610 updated through NCS yesterday, while battery was fully charged.
Earlier, on WinMo 7.5, on a daily average use, the battery use to shell out at least 3-4 days of power with the mobile data connection enabled.
But, on 7.8, the battery drain is actually more, only after a day of use, the battery level dropped to 43% showing 19 hours of standby time.
That's just the stock ROM, from Nokia, haven't had any experience with custom ROMs.
Maybe the CNN application and Hike messenger are drawing on more power.
Thanks in advance.

advises for all WP7:
- turn off 3G, use E (2G)
- turn off BT and WiFi when not used
- increase or turn off mail checking time
- dont use (or reduce numbers) of Live tiles
- turn off background tasks in settings - applications - background tasks (after that you must manually update this applications but you lower battery consumption
also you can manually turn on Battery saver, go to "Settings - battery saver" and check "Turn on Battery Saver now, until next charge"... notice: with this apps wont work in background, emails not be received automatically...

dxdy said:
advises for all WP7:
- turn off 3G, use E (2G)
- turn off BT and WiFi when not used
- increase or turn off mail checking time
- dont use (or reduce numbers) of Live tiles
- turn off background tasks in settings - applications - background tasks (after that you must manually update this applications but you lower battery consumption
also you can manually turn on Battery saver, go to "Settings - battery saver" and check "Turn on Battery Saver now, until next charge"... notice: with this apps wont work in background, emails not be received automatically...
Click to expand...
Click to collapse
Thanks dxdy. I yesterday installed pdaimatejam's "1_HD2 Pdaimatejam Rom Wp7.8 OS 7.10.8858.136 RMT v8.7" custom rom on nand. Battery used to drain very fast. Now did what you said and applied the camera trick too. Whatsapp running in background, with 2G, battery current after 2-3min idle is -19. Thats the lowest I can go. Before it was -178 at idle. So is it normal now ?
And I have not tried nand android ics rom. Do it have a better battery backup than nand wp7 ?

mx900 said:
Thanks dxdy. I yesterday installed pdaimatejam's "1_HD2 Pdaimatejam Rom Wp7.8 OS 7.10.8858.136 RMT v8.7" custom rom on nand. Battery used to drain very fast. Now did what you said and applied the camera trick too. Whatsapp running in background, with 2G, battery current after 2-3min idle is -19. Thats the lowest I can go. Before it was -178 at idle. So is it normal now ?
And I have not tried nand android ics rom. Do it have a better battery backup than nand wp7 ?
Click to expand...
Click to collapse
How much battery life are you getting now? I'm also having problems trying to squeeze out life of wp7.8 which is a shame seeing that the rom otherwise is completely functional.
Also what tool are you using to determine the current draw?