Database Users

[Q] Very High Power Consumption Android On HD2

Hi,
Ive recently installed Android 2.2 Froyo on an SD card on my HD2 and the battery is going down so quick... it wasnt great in Windows mobile but now I'm struggling to get it to last all day...
I'm saying to myself this cant be normal, I'm also trying a Samsung Galaxy S and the battery is so much better!!
Is there anyway I can improve the battery power on my HD2, I know in a HD2 the battery is a 1350mah and the Galaxy S is a 1500mah battery.
Should that make such a difference?
I'm considering going back to Win Mobile but dont really want to but havent got any other choice if the battery carrys on like this....
I also notice the screen and back get really quite warm... I suppose Android is making the system work harder?!?!?!

Its safe to say that you havent read any of the threads about battery life.
Before you say I did a search and didnt find anything Ive already typed in battery in search and found a bunch of threads.
Now what you need to do is find out why its running so warm.
It could be the kernal version you are using.
Ways to improve battery life are using setcpu and underclocking. A lot of members use current widget as a method to see when High drain is occuring.
In sleep mode you should be seeing less than 10ma. If you dont see less then this there is a problem.
Set current widget to 1 min intervals.
Dont use task killers they dont help anything no matter what anyone says.
Dont compare the captivate to the hd2. 2 different phones.

I am using mccm 1.5 customize, and CurrentWidget shows 5mA on standby which I think is good enough. Sometimes, it shows 60mA on standby in a while and my battery drains very fast, even I use Advanced Task Killer but it does not help. I have to reboot the phone to get it back to 5mA on standby.
Anyone has any idea of what may cause my standby power that high (60mA)?
Thanks.

hazard99 said:
Its safe to say that you havent read any of the threads about battery life.
Before you say I did a search and didnt find anything Ive already typed in battery in search and found a bunch of threads.
Now what you need to do is find out why its running so warm.
It could be the kernal version you are using.
Ways to improve battery life are using setcpu and underclocking. A lot of members use current widget as a method to see when High drain is occuring.
In sleep mode you should be seeing less than 10ma. If you dont see less then this there is a problem.
Set current widget to 1 min intervals.
Dont use task killers they dont help anything no matter what anyone says.
Dont compare the captivate to the hd2. 2 different phones.
Click to expand...
Click to collapse
Thanks for your tips for better battery life. I was curious about a few things and hope you could clarify a few things for me and some instruction or threads on how to do so. And yes I have searched, that's the first thing I always do before I do anything web based as far as positng.
1. How do you setcpu and underclocking?
2. How do you find the amount of battery that standby takes? i.e. 60mA? How do you get to that setting in android?
Thanks for your help in advance.

Setcpu is an app used to control your cpu speed.
link included
http://forum.xda-developers.com/attachment.php?attachmentid=394848&d=1283568967
the setcpu dev's site with complete info on how to use it.
http://www.pokedev.com/setcpu/
To check ma's use (current widget)
http://forum.xda-developers.com/showthread.php?t=776085
long press on the desktop and apply current widget. It will ask you if you want to create a log. Create a log for 1 min intervals. Put the phone to sleep and leave it for a good 5 mins.
You can then open the log file usint astro file manager and check your drainage while sleep.
One thing I found is that If i am having high drain i turn my gps on and restart then it usually settles down and I can turn the gps off.
If you have apps that are syncing you will a higher than normal drain during those times the apps sync. if you set your apps to sync at longer intervals the amount of batter drain will be unnoticable.
I have major battery ocd. I constantly check my battery and have to force myself not to look but still use my phone as any normal person would.
I can pull more than 12 hours easy!

Thanks hazard99!
The first time I ran android I don't think I've had any battery issues and now that I'm looking at the percent on my homescreen Im beginning to feel battery OCD too. It's like I lose 1% atleast every 15 minutes when I look at my screen. But I did take and apply all the tips you told me and I do see that it only uses 5ma when screen is off. I truely don't understand. :/

Stop looking at your screen. Stop worrying. The more you look the more juice you use while the screen is on. There will be more points where the phone is off.

traithudo said:
I am using mccm 1.5 customize, and CurrentWidget shows 5mA on standby which I think is good enough. Sometimes, it shows 60mA on standby in a while and my battery drains very fast, even I use Advanced Task Killer but it does not help. I have to reboot the phone to get it back to 5mA on standby.
Anyone has any idea of what may cause my standby power that high (60mA)?
Thanks.
Click to expand...
Click to collapse
Ive also been trying to investigate this, my standby drain is usually 60+ mA, and during use it jumps to the 200's, strange stuff indeed....For you to have 5mA, lol i wish that was for me too =/

otakubakaa said:
Ive also been trying to investigate this, my standby drain is usually 60+ mA, and during use it jumps to the 200's, strange stuff indeed....For you to have 5mA, lol i wish that was for me too =/
Click to expand...
Click to collapse
What radio and wm are you using? Do you use SetCPU?

I had high battery consumption, too. But now I found something interesting...
Due I'm not allowed to post links, yet, search for the post with topic:
[SOLUTION] Possible solution for heavy battery drainage.
With this fix: over night I only lost 20% instead of 59% of battery.

uninstall SetCPU

10507 said:
What radio and wm are you using? Do you use SetCPU?
Click to expand...
Click to collapse
im using the same radio as you (2.10), energycookie rom 21916, and my setcpu is at interactive 245/729, and for sleep its at 245/384, hastarin kernal.

Use a Battdrv.dll from older HD2 ROM 1.48 Etc. I'm not sure if you recmod the module and replace the current one in Windows if you will get the same benefit as if you cooked the driver in.

i just updated my kernal to the latest zimage in mattc's froyosense's evo tree, and my standby is around 6-11 ma now, guess that solved some issues lol, anyone know whats the normal operating ma power consumption for texting?
EDIT: Now when i try to enable wifi i simply get "error", did i mess up on something? =/
EDIT: Solved above problem. WOOT!

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...)

Kernel...best battery baby

Hi anyone recommend a kernel for battery,over the last couple of days my battery lasts 8 hours,which is not the best.
Im on arhd. Which the roms great but the actual kernel not the best at the mo

u can try lordmod's sense kernel v3.0,
but believe me its better to use this uv script http://forum.xda-developers.com/showthread.php?t=1305228

Well, there are several things that impact battery life:
ROM (ARHD is a good one)
Radio (you should flash th eone recommended by Mike1986
Kernel (standard kernel in ARHD should be good)
Apps and settings (badly written apps, using Latitude etc, overclock too high, clock settings for sleep too high?)
Partial Wakelocks if consumption is during inactivity (download the app, and read as much of the thread as you possibly can: http://forum.xda-developers.com/showthread.php?t=1179809)
Screen Brightness if consumption is heavy when you use th ephone (get Lux from the Market, you can build your own screen brightness curve, possibly Juice Defender does this too)
Also look here: http://forum.xda-developers.com/showthread.php?t=937080&highlight=wipe+battery+stats
Battery Monitor Widget will also allow you to check consumption, key for seeing when drain takes place.
In short, I'm saying it's not necessarily a kernel problem . I'd suggest you do a Superwipe, reflash the ROM and suggested radio, let it settle down for a couple of days, install JUST the monitoring apps, that way you will see if it's down to the ROM itself - and then add your own apps/settings back gradually. In about a week, you should really have isolated the problem.

[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

[Q] Battery life with NexusHD2-ICS-4.0.4-CM9-HWA V2.9a on SDCard

I tried to search but the results were not conclusive, so decided to start separate thread.
I installed NexusHD2-ICS-4.0.4-CM9-HWA V2.9a on an SD card to try it first, and I am running it from Windows Mobile through haret. Performance is good, everything seems to work fine, besides the battery life. It drains the battery in about 10% an hour. On Windows, it can last several days with the same type of usage, so it is not the battery.
Better battery stats does not show anything useful - it reports that the main consumption comes from the OS itself.
Nothing seems to alter that behavior significantly - I wiped and installed the ROM again, so that there are no applications of my own running. I turned off wifi, mobile data, and changed connection to 2G. That causes only minor variations in the battery drain. Played with the cpu governors - same thing, just minor improvements.
My device is T-Mobile HD2 with class 4 SD card. I used PPP when installing the build as the other setting did not work for me.
Has anybody experienced the same behavior? Do you think I will be better off if I put the ROM on NAND?

grga1 said:
I tried to search but the results were not conclusive, so decided to start separate thread.
I installed NexusHD2-ICS-4.0.4-CM9-HWA V2.9a on an SD card to try it first, and I am running it from Windows Mobile through haret. Performance is good, everything seems to work fine, besides the battery life. It drains the battery in about 10% an hour. On Windows, it can last several days with the same type of usage, so it is not the battery.
Better battery stats does not show anything useful - it reports that the main consumption comes from the OS itself.
Nothing seems to alter that behavior significantly - I wiped and installed the ROM again, so that there are no applications of my own running. I turned off wifi, mobile data, and changed connection to 2G. That causes only minor variations in the battery drain. Played with the cpu governors - same thing, just minor improvements.
My device is T-Mobile HD2 with class 4 SD card. I used PPP when installing the build as the other setting did not work for me.
Has anybody experienced the same behavior? Do you think I will be better off if I put the ROM on NAND?
Click to expand...
Click to collapse
Try using NAND it does reduce battery usage by some percentage. But don't expect a big change in battery drain , it is common issue that we all are facing.

Battery should last about a day on normal usage. 10% per hour is a lot. Is your screen turned on? Screen takes most energy of all. Turn intensity down and let it turn to sleep in 30 secs or 1 minute.
Also, frequent battery checking drains battery too, so leave the phone alone
Don't use tools as juice defender, my opinion is they take more juice than they spare.
Sent from my NexusHD2 using xda app-developers app

and let the rom settle down for a day or so
becuase you cant really tell what the battery drain is after
a fresh rom install

Ok, if the range is around one day, then I do not think there is anything specific with my installation. It can be weaker battery or too much screen time. It was just too different than on win.
Thanks all

battery drain
grga1 said:
Ok, if the range is around one day, then I do not think there is anything specific with my installation. It can be weaker battery or too much screen time. It was just too different than on win.
Thanks all
Click to expand...
Click to collapse
Battery drain will always be an issue as the battery really is too small for the phone. Have you tried setcpu or similar these cpu management programs seem to work to a degree in increasing battery life.