Yea maybe..Mine is set to auto-brightness..

ok..im a noob..jz wanna ask, how do we turn off all applications???

One could lengthen battery time by underclocking and feeling lag all the time on 3g,3gs.

Have to edit fstab file through SSH ( i hope this is legal )

Google around u can find the tutorials.

I changed my iphone 3g to 600mhz maximum clock and 300 mhz idle clock.

Seems that the battery life is shortened . but its worth it for the performance

I've tried 600mhz , 100 idle . 8 hours of sleep. only 5% standby gone

As I have said :-
3G on
Wifi off
Location services off
Mobile data off
Calls and sms
Notifications off
Brightness auto off ( set to abt 30% brightness)
No games
iOS 4.0.2

Average abt 15% battery drop for every 1 day.

So if the last the 19% battery finish, then probably last to the 6th day on the Iphone4.

This post has been edited by email2one: Oct 10 2010, 11:31 PM

my 3gs only last exactly 1days for normal usage... izit normal?
can i go to servic center?

If you're noob..kindly read up. It helps and you'll learn more: http://forum.lowyat.net/topic/868281 > 10. Battery Drain Fast with iPhone 3.0 and above? How to have longer battery usage?

Cheers

My iphone can last up to 48 hours. Really happy compared to my 3gs.

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hehe mainly on standby coz i didnt use much.. only for call in and out.. a lil bit of gaming.. and internet.. thats all

push off (manually)
cellular data off (got a lil leakage coz i 'gatal tgn' on for a moment to test out gprs (is it correct?) speed for digi.. )
wifi on

wanna ask u guys something

i am on iphone 3gs wanna knwo if the 4.0.1 firmware or the 3.1.2 which one eats more battery??

also which firmware uses lower ram?? dun want to reboot / respring my iphone every few days la

how long u 3gs can last n what firmware?

my batt so far 1 day at nite need to charge alreayd reaach 20% at firmware 3.1.2

not sure if going to 4.0.1 will help....also wanna try the underclocking later see if it help

i think its kinda normal.. mine last almost for a day only.. at night sure gotta charge..

depends u use how much.. more usage.. more battery usage.. huhu

for the firmware.. didnt know if got any improvement.. try uncle google

Hey guys just like to confirm, so it is better to charge your iPhone when ur not using for example when u reach home from work and battery left50% just charge it don't have to wait for 20% or lower this way is better?

You can charge anytime you want....doesn't mean you have to wait at 20% to charge. If u r at 90% also can charge. Please refer to previous post for reference....

With all the WiFi, notifications, locations services and Bluetooth disabled, and the brightness set to half (default), my 3G drained 6% of battery after using Facebook and Twitter for almost half an hour, and I haven't use safari nor play music yet. I wonder how users can use less than 15-20% per day by enabling 3G. Sigh, one can't really play games for long without charging it.

what is the best battery charger for iphone? i need 1 with long lasting. hope can full charge iphone 2,3 times.

battery charger @ case charger., just state it.. and plz gv review it if u used it before.. thanks

I apologise if this question has been answered before

If I were to change my iphone battery, how much would it cost and how long does it take to have the battery changed ? Is it that we can go to any Apple service centre and change the battery on the spot ?

Thank you for answering this basic question

my usage so far.
not too bad.


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using ip4 or what? nice

I'm using ip4. Before going to sleep I made sure all background apps are closed. My 3G was on, cellular data on, wifi off, push notification only allow Tango, location services only allow maps and compas. After 7 hours idle, battery life dropped from fully charged to 85 percent. WTF?