@coconut

my usage is almost like urs, 90% similarity =\ and i expect it could last longer, maybe 48 hours? but no way man =(

1. it's normal for all electronic devices to be slightly warm when it's being charged. it's abnormal when it's hot enough to burn you.
2. make sure you don't leave any background processes running.

do read up this thread for various solutions posted by forummers on how to lengthen your battery life.

iPhone Generation : 2G 8GB JB
Current Firmware : 3.0
iTunes Version : 8.2
PC/MAC : PC
Jailbreaking software : redsn0w
Problem Encountered : iPhone turns off without me knowing. To be exact every couple of hours. Then i would have to turn it back on. Sometimes, it wont turn on att all and the only way to make it alive again is to charge it. Never happened before this. It happened for 2 days already.
Steps Taken So Far : Soft reset, deleted unnessary apps, do memory cleaning, sync with pc.

Hello again guys.

Any idea why does the phone suddenly drains up the battery so fast? As in the battery will drop from 100% to totally flat overnight. Its really bothering me.. Started happening 2 days ago.

All unnecessary stuff, wifi, push is turned off.

Hmm, yea, I used to face those kinda problem as well but somehow I fixed the problem already. Sorry I can't really tell how I fixed it cause I did everything mentioned in this thread and I don't really know which solution fixed my problem, so do read up this thread from page 1 and if possible, try all the solution mentioned. As for sending your iPhone back to Maxis centre, I don't think that would do much of a help. My prediction is that Maxis staff will just ask you to do all those standard battery conversing methods which you already know or just ask you to wait for updates from Apple regarding this issue. In my opinion, try fixing this yourself by following all the steps or methods mentioned in this thread for a quicker solution and it's definitely less frustrating than waiting for responds from Maxis or Apple. Good luck

Claxxion
Looks like either your battery or your comm port is malfuntioning.

Well looks like I have found a balanced approach to my battery problem:

1) Always charge for more than 4 hrs.
2) I turn off all unnecessary items

Voila. standby power is still at 45% after 2 days since last charge. Usage is 2 hrs 45 minutes.

My battery has this problem as when I charged it fully to 100% and leave it to sleep during night time, when it's morning.. the battery falls to 76% ... which is super duper fast.... On average I would have to charge eveeryyday, I switch off every neccessary network and all but this is still it. Are there any other ways to help keep the battery life?? Please advice thanks =)

Oh and btw how many hours should I charge the first time I use the iphone ?????? Like an avergae phone is 8 hrs? for iphone 3gs ?

This post has been edited by mandyxt: Aug 12 2009, 09:13 AM

turn off Notifications and give it a try. mine can go from 100% to cant turn on the phone in the morning.

and also what apps have you installed so far?

i downloaded very few app only like only 4 pages??? and all notification push all off.. =(

for my case, yesterday night i have it fully 100% charged and played some videos for few minutes then leave it until this morning...now the battery is 98%...what is your usage and standby time since last full charge?

dopamine, how do u normally charge your iphone? i'm experiencing the exactly same case as mandy and i can't seem to find any solution on the net that is working..

well my usage and standby time is around 1 hr plus.. sumtimes my standby time is around 7 hours plus.. how long do you charge ur phone??? it worries me to charge my phone twice or once a day... its not good for the battery life right.. =(

normally i charge it for 2 - 3 hours until it 100% fully charged...even though sometimes i did not fully charged and leave for whole night until morning it just reduced 1 - 2% only...

u're using 3GS too??? hrmm do you tink they have some battery prob or wat??? since we're all using the same OS right

im also using 3gs version 3.0.1...maybe u can try to fully drain the battery then fully charge your battery... pls refer to this http://forums.macrumors.com/showthread.php?t=525741

if still have the same problem, i think you should send it to maxis for warranty

Well, this is what my GF faced when she got her 3GS.
The phone battery lifespan was seriously pathetic.
It drops like 10% every hour on standby.
We searched around the net for a solution and we did this.
Restore the iPhone as new.
Disable Notification.
Now the battery life seems to be normal.
The firmware seems to be the problematic.
Camera malfunction is being reported too on apple forum.

This post has been edited by crazy25kid: Aug 12 2009, 02:47 PM

thanks for the details !!... but currently i've been chargin my iphone using computer as i guess my adaptor/charger has gone haywired after i used 3 times.. it didnt charge my iphone up.... so i guess i gotta send it back to maxis this weekend... and it was barely even a week i used the phone .. =.=""

Does anyone know how I can disable the edge function totally? All my networks have been switched off I still find the E alphabet on the network bar.

guys no worries.. this is just firmware problem... it will be fixed in next version... nothing;'s wrong with ur iphone 3g/3gs. I think most probably is because the battery meter cannot be read properly. anyway version 3.1 is coming out soon.. so stay tuned. mine also having this problem anyway

u can disable EDGE by using SBSETTINGS found on cydia.

---

Added on August 13, 2009, 4:37 ami just found out something.. while i was using EDGE (since i turned off 3g to save battery), when my phone is near my pc speakers, i can hear the beeping sound like when u make a call and go near a speaker.. i was wondering if its because a sms or mms is coming, but i waited and nothing came. i checked all apps and everything was fine. so i tried turning off my EDGE, then no more sound. i tried turning on 3g instead, also no sound.. when i switch back to EDGE then the sound came back.

so my guess is 3g uses more power than EDGE when we're on call but when its on standby, EDGE tends to send signals out continously?

correct me if im wrong, i haven't seen any cases like this before nor any statement about this before but what explains the beeping sound then? hmm

This post has been edited by jr`: Aug 13 2009, 04:37 AM