iPhone Generation : 2G 8GB
Unlocked? (or Part Number): Software Unlocked
Current Firmware : 3.0
iTunes Version : 8.2
PC/MAC : PC XP
Jailbreaking software : redsn0w
Problem Encountered : Battery Life Span.. Battery Drain very fast! Not even more than half day.
Steps Taken So Far :
Screenshot of Problem(if applicable) :
Other Information/Remarks :

@tinkerbell,

the phone is warm abit when playing game/runing some apps that drain cpu power. it quite normal too all electronics devices.

I feel that my iPhone 3G's battery life lasts a bit longer after upgrading to 3.0
However, I don't have 3G turned on all the time.

I not sure about you all, but i do think the upgrade OS did something to your phone.

I DO REALLY SUGGEST people with BATTERY problem, RESTORE THE PHONE AND START AS NEW IPHONE, INSTEAD RESTORE from backup. ( I have once before successfull JB due to some reason, my battey are draining like water, then i did start as new iphone, all goes right.)

dude do u restore from back up or did u start everything over as a NEW PHONE again?

@stringfellow,
I sure hope you're having fun with your 2 new toys! Thanks for the feedback on heat issues; mine feels like urs too but it's not so hot U can fry an egg

As to battery, mine seems fine for now with 3G switched on.

can someone tell me how to turn the edge off on my iphone? thanks

WOHhooOOo guys i am very happy thanks to Shock. i follow his instruction and now its not draining...
usually with 10 hours of standby and 1 hour usage my OS 3.0 iphone no battery already.
but now my phone just drop by 3 level (not even half) after 10 hour stanby and 1 hour usage.
Now i am experimenting with all the thrid party application whether causing draining of battery or not.
so far MIM, activateMMS 2G is not causing the problem...just install statusNotifier, later i will install SBsetting see will drain or not
i think statusNotifier and sbsetting might cause draining but later will know liao
will try install the app store apps as well to experiment see which is causing draining.

This post has been edited by sakak: Jul 13 2009, 12:52 AM

@breakdown47500,
Please refer to http://forum.lowyat.net/topic/1061070 for disabling of APN.

3G browsing drains battery faster than playing a game!

Within 2 minutes it drops from 73% to 70%.

Incredible.

@sakak
StatusNotifier already compatible with fw3.0?

SBSettings won't drain the battery la ... why do you assume it will? It's just an extension to SpringBoard, not a program running at the background.

well it doesnt lauch the program.. but it still function i duno y. haha
ya ur right i have install all the 3rd party programs and application.. seems that my phone now is running as usualy like the old 2.2 OS.
it has been over 1 hour talk time 15 hours standby and 3 hours usage..
battery now not even half.. very happy and satisfying

i also having the same problem... plus, my fren always cant call through my phone. but my phone still have line le... problem arise only after i upgrade to 3.0...

now thinking of changing to nokia n96 d...

do u guys mind having a look at my usage on my iphone? issit considered as draining fast? thxx

This post has been edited by lancerie: Jul 14 2009, 09:18 AM


Attached thumbnail(s)

anyone heard about the 3GS overheating and low battery life issues? well, mine is affected... it feels warm even without doing anything sometimes, and i need to recharge it every 6 hours!! nope, wifi is not on. gonna call apple when im back in oz...

Ok, I'm jailbreaking and unlocking, and restoring to a BLANK phone now as suggested by a forumer a few pages ago. The battery drain on my iphone 3G without wifi, screen at 50% is appalling! 5% loss in 1 hour, minimum!

Guys, try this out.

Disable/off these functions and use it whenever you need.

1) Push Notification
2) Location Services
3) EDGE
4) 3G
5) Wifi
6) Brightness set to half or less and off auto brightness
7) Mail - fetch new data set to off and Push Off
8) Kill all background apps by using Processes via SBSettings or use 4. Force Quit Program
9) Disable SSH if you install earlier for jailbreak iPhones.

*Charge your iPhone for atleast 4 hrs (USB cable or 3 pin plug)



This post has been edited by davidgary73: Jul 15 2009, 11:32 AM

ohhh u have so many things switched off? and it lasted 2 days 17 hours that is insane for me, and u left 40% ommfg T__T

may i ask how do we turn off push notification? b4 i upgrade to 3.0 i have push notification in my settings, now tat i am 3.0 its, GONE!!

and i dunno how to turn off edge, mail - new data set to off and push off, and lastly, disable SSH, i didnt know SSH can be disabled?

thank you so muchh.

Thanks for the pointers DG.

I've followed all of that except 3G as I need it to make calls for U Mobile. I didn't even install SSH after my jailbreak.

1) Push Notification - OFF
2) Location Services - OFF
3) EDGE - OFF
4) 3G - ON
5) Wifi - OFF
6) Brightness set to half or less and off auto brightness
7) Mail - fetch new data set to off and Push Off
8) Kill all background apps by using Processes via SBSettings or use 4. Force Quit Program - will try this nao
9) Disable SSH if you install earlier for jailbreak iPhones.

To enable Push, read this: http://support.apple.com/kb/HT3576

Use SBsettings (get it via Cydia) and disable EDGE, 3G, SSH (if you installed) etc

For Mail, check under Settings > Mail, Contacts, Calenders