Ok folks here is my story.I have solved my battery drain issue.i am on 2g.I hacked and installed mms for 2g via cydia and that was my problem.So i uninstalled that and also uninstalled winterboard as well and reinstall to remove the carrier icon.I also reset network settings once.I also uninstalled all push app and reinstalled im + and before using the app go to settings and off all push notification for im+ and also in the im + app as well go to push settings and set keep im services active on exit to off.
Also kill all processes via sb settings often after apps usage,off location service,bluetooth and off push mail service as well,brightness set to half and off auto brightness

Apple battery sucks....have to do all that just to get more juice.It limits the phone's capabilities

i also SSHed in my iPhone and moved the APSD file from start up in: /System/Library/LaunchDaemons/com.apple.apsd.plist

and moved it into a dummy file somewhere else.. and reset the iPhone (iphone still worked).

ever since after doing all that battery last more than a day.

IF ALL ELSE FAILS OFF THE PHONE MUA HA HA

Try it guys

This post has been edited by hussain: Aug 5 2009, 09:57 AM

Apparently com.apple.apsd.plist function is to ensure push works and always checks servers to find things to push.(This is what i read from another forum) so if u move it out from the launch daemons folder it will stop doing that.However newbies who do not know how to ssh u have to really read up how to do it and not mess the files in the phone or u may have more problems....

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Added on August 5, 2009, 3:11 pmTo check if any processes are running in the background install sb settings and use the processes icon to delete background apps

This post has been edited by hussain: Aug 5 2009, 03:18 PM

I updated to 3.1.2 on Sunday
Surfing on 3g battery dropped from 100% to 90 %
in 25 minutes. Is this normal? Was the same I guess when I was
on 3.0.1. Am on 3gs. Cam someone let me know if this is normal or
do I need to do a fresh restore again?

Ok 5 mins more and radio on the background while surfing
now on 84%. That's draining fast

This post has been edited by hussain: Oct 13 2009, 08:06 AM

tks mate

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Added on October 15, 2009, 9:15 amOk lets kick this thread off again.3.1.2 is great but drains the battery like crazy,but of course i cant seem to put my phone down so i cant test on standby.Has anyone tested?
Does blackra1n jb and pwnage 3.1.4 jb method effect the juice levels?????

This post has been edited by hussain: Oct 15 2009, 09:15 AM

If i am not mistaken ipod usage doesn't drain the battery it's the same for me.Listening radio on 3g does

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Added on October 15, 2009, 12:25 pmFor your case i am sure some apps are running on the background as it should not lose 10% on standby

This post has been edited by hussain: Oct 15 2009, 12:25 PM

If u are jailbroken u can use sbsettings and under processes u can kill all background apps but if not jailbroken press the power off button until the slide to unlock message pops up then keep pressing home button until back to main screen

also go to settings and disable push notifications.That helps a lot

This post has been edited by hussain: Oct 15 2009, 01:00 PM

That sounds great man.Which firmware u using?Did u jb?if so which method?

Surfing using wifi is fine. If use 3 g only battery
will drain.

So far today excellent. From 6am did surfing on
wifi watched inglorious *******
made some calls and SMS
and battery life now says 52%. It's the best result
I have had on an iPhone before. Bottomline
3g and gps will kill the battery

Hi guys I may have an issue with my ip4 battery life
but not sure.
Charged at 12.30am unplug from charger 7 am
Started using 7.45 am.
On 3G , was on twitter, Facebook ,watched 2 you tube videos
and checked a few mails
At 8.15 am I am down to 93%
Then 3G on and idle till 9.10 am down to
90%
Always kill all processes after use
Brightness set to half with auto brightness off
I am on latest 4.1
Is this normal or do I need a dreadfull restore??
Please advice friends