Any tips for a better battery life...?

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What settings is everyone using to get the most outta there desires hd battery!?
I know it will take at least 4 cycles to get the best outta the battery, but at the moment I can literally see the battery draining, its not good! I lost 30% within an hour and half! :0(

I'm using advanced task manager, and it never seems to kill all running apps straight away when I hit end all!

Sent from my new Desire HD using XDA App

1. Dont use task killers...it doesnt work with Froyo and it doesnt help...uninstall it.
2. Empty the battery to the 0% and leave it on charge when phone is off all night.
3. Turn it ON and use it untill it die again...then again turn it off and charge it for 3 hourse. Turn it on...its calibrated
4. Use 2G if you dont need 3G
5. Use max 70% of display light
6. Use only must have online update programs

Thats all...I did that on HD2 and I didnt have any problems for all day...and I used it normaly. In stand by it was 1,5% per hour... with mp3 was 10% in 1hour...etc...
Have fun!

How come task killers don't work? How do I stop apps from running in the background now then without a task killer? Won't this kill the battery more??

Sent from my Desire HD using XDA App

No it wont...its like using a notebook... if you have notepad, browser, and solitair opened...but not working with them...they will not use your processor and energy...it will only use your RAM memory... And thats the same with android..BUT after some tome (for example 6hours) if you dont use some app...the phone will automaticlly turn the app off. And in any posiblle way you would never use more than 400MB of 765MB RAM ...so memory is not a problem

Originally Posted by Smartmob

No it wont...its like using a notebook... if you have notepad, browser, and solitair opened...but not working with them...they will not use your processor and energy...it will only use your RAM memory... And thats the same with android..BUT after some tome (for example 6hours) if you dont use some app...the phone will automaticlly turn the app off. And in any posiblle way you would never use more than 400MB of 765MB RAM ...so memory is not a problem

My first post here on XDA so hi

Now, I'll just correct you a little. Your example was pretty much correct and a nice one, but Android OS doesn't kill tasks when amount X of time has passed. Android kills tasks when it needs more RAM (=when there are too many processes running), it kills the least used process. Android OS usually runs loads of different processes, the cool thing is that they don't consume any battery because they are not actually used. These processes are stored in the phone's RAM memory, whether there is something stored in the RAM or not, the RAM chip uses the same amount of electricty. Thus processes that exist but are not in any applications' use, don't consume battery. Therefore you don't need a task killer, in fact a task killer reduces your battery life because it kills the processes and then the phone has to restart them, and this cycle continues over and over.

So which is the best way to come out of an app? Back button or the home?

Sent from my Desire HD using XDA App

Originally Posted by gibbo82

So which is the best way to come out of an app? Back button or the home?

Sent from my Desire HD using XDA App

Both are as good, it makes no difference.

I have found that turning auto sync off when not essential saves my battery quite a lot. If I need to check something ill refresh that app. Once I'm near a place I could charge ill switch it back on.

Just a suggestion. Try it and see how it goes for you..

Sent from my Desire HD using XDA App

How do i turn off 3G and use 2G network? And how do i turn on 3G when i want to use it?

For some reason after a hard reset everything seems to work fine. Sms messages receiving in time (had installed task killer which i think made the problem possible) and all of a sudden 3G and HSDPA is available. So battery life all of a sudden is less to so how do i change this?

Originally Posted by SSJVegetto

How do i turn off 3G and use 2G network? And how do i turn on 3G when i want to use it?

For some reason after a hard reset everything seems to work fine. Sms messages receiving in time (had installed task killer which i think made the problem possible) and all of a sudden 3G and HSDPA is available. So battery life all of a sudden is less to so how do i change this?

You can go to settings/wireless and network/mobile networks/network mode/gsm only

You can also install extended controls widget wich has a widget wich takes you directly to that screen. A direct switch is not available in this ROM.