Hey guys, the battery life of iPhone is probably around 1 day or less. Is this normal? I don't play a lot of games on the phone, maybe for a while when I'm bored . Sometimes use 3G to do some surfing on the net. I feel it's a lil bit tedious to charge the phone everyday. Mayb because i'm that laZy.. Hehe.. Just wanna know what the normal battery life for the phone. Btw, when I took the phone out of the box , I did not charge the phone for 8 hours as advised by the maxis people. I think just charge it around 4 hours on the first day. Will this affect the battery performance? Thanks for the help

my iphone as well ..can last about 1 day only ..u go itunes apps store and download the "Battery Magic" ..it will show ur iphone duration on 3D game play, talk time..3G internet surfing...wifi internet surfing..ipod audio playback n standby time ..quite usefull

well i just upgraded to OS 3.1.. everything solved.. been heavily using my phone for 50 hours.. battery still half lol.. so happy now. no need worry bout charging

cool.. Will upgrade to 3.1 as soon as I reach home..
Thanks guys.. I hope this will solve the battery issue ..

Danni boy,

HOLD YOUR HORSES.

Pls go to official apple forum b4 u update:
http://discussions.apple.com/forum.jspa?forumID=1333

As of writing, already 58 pages of comments posted screwing 3.1 for killing battery life, and increasing.

he must be joking ..unless u dun use ur iphone n leave it aside on standby mode ...

with PUSH + wifi = last me 10hrs most on FW3.1

Hi all, i have read through some forumer reply on apple support discussion thread & lol'ed. I'm also one of the victim!~ just owned Iphone 3G for 2 days already had these battery draining issue.

my 3 years old zitron's nokia 6630 will retained it's battery w/o charged optimum 3~4 days, under normal usage. still using the same originally bought battery (e.g; texting, mms, call)

while my Iphone only had less than 24 hours before bettery is out. (same usage; texting msg, call)

anyone knows, actual battery duration for iphone under normal used?

Kindly advise

bro...not fair to compare to a nokia 6630

should as least compare to a PDA

to me as long as can last me 1 whole day when i m out (12-14hrs)

that's fairly good

I've tested it in sleep mode from 2:30am to 7:30am just drop 5% of battery. Running on maxis stock setting firmware 3.01

mine after upgrade 3.1, also same....battery can last only 1 day...just few calls, more sms, and proabably less than 20mins games....

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Added on September 24, 2009, 12:20 pmwa...megatron007, i think ur battery is very good....

This post has been edited by ryan_giggs: Sep 24 2009, 12:20 PM

After an experiment about using digi or hotlink in my iPhone 2G, I realized that hotlink is the nightmare for me now..

For Digi:
Usage of 7~8 hours for music, sms, calls and some apps
Standby can be more then 24 hours++
Battery left 40%

For Hotlink:
Usage of 1 hour + for music and sms.
Standby 11 hours.
Battery left 50%

Anyone know what's make hotlink drain battery faster than digi?

my partners and me (4 of us) received our 3Gs last saturday ( 19 sept). Immediately that night, me and my partner ( 2 0f us) upgraded to OS3.1. Have been playing with it during the long raya holidays, so quite a lot of times connected to the computer for Apps downloading. So can't quite tell the stamina of the battery.

Yesterday, 24 sept, in less than 6 days time and it was before noon time, my partner's (upgraded to 3.1) iPhone DIED on him!! can't switch on and just black out right after sending a SMS and he remembered it still has 80% of battery life.

Brought it back to Maxis after lunch. The technician asked the unit to be left with them and they will look at it. in less than 1 hour, got call from Maxis to my partner to return all things that comes with the iPhone (box inclusive) back to them. They replace a brand new unit to him immediately......

After reading all the issues posted in apple's forum, i think 3.1 is the culprit for demise of my partner's phone. and i did notice the extraordinary fast draining of battery of my iphone with 3.1OS.

Now, anyone of you know how can i restore or downgrade my OS back to 3.0? i tried the itunes restore and it didn't work as the OS firmware still maintain 3.1 eventhough the rest of the data can be cleaned.

I saw some webs saying u can restore the phone the new phone setting. Any advice on this?

It could be explained by 2 factors:

1. Near far phenomenon
A mobile phone near to a cell tower transmit in lesser power than a mobile phone further from a cell tower so that the cell tower receives signals in almost a constant level of power irrespective of the distance those mobile phones are to the cell tower. When your iPhone is using Digi and depletes faster, it could be due to the fact that the Digi cell tower is farther than Maxis. OR the signal quality at your location or whatever cell you crosses to is not as good as Maxis's requiring higher transmission power.

2. Frequency of GSM registration
I believe different networks require the phone to re-register itself to tell those towers that 'I am here' especially when you cross from one cell to the other. The more frequent this is required the more power used. Or if you happen to travel very frequently, you may be crossing cells as we speak.

The point is its hard to do a test/comparison unless you fixed iPhone at a constant location. Checking signal quality by how many bars available is not accurate as the RSSI readings could be lower or higher. Also, putting the phone in your pocket or near your body causes a lot of energy absorption unless you held it in a controlled environment. Which is why all those SAR readings, rate of absorption and Nokia's famous battery performance declaration where performance varies depending on network conditions.

Again, I must agree that v3.0 onwards sucked things up with the introduction of Push Notifications. Something to do with the OS's power management. And we're still not even close to multitasking. A lot of change is required before multitasking is truly implemented again.


Ya, I have a feeling that the iPhone OS v3.1 is the culprit. In fact, the whole v3.0 release isn't bug free at all. I remember Apple is pretty strict in terms of release control at least with bugs. I remember 2.0, 2.2, 2.2.1 is pretty consistent. Then again, 3.0 introduced a lot of complex innovations and progress. Guess its harder this time around.

This post has been edited by davidmak: Sep 25 2009, 12:53 PM

i am using iphone 3G, maximum record, usage at 6-7 hours, stand by 2days 10 hours++.

do u guys think this is alright?

actually, OS 3.1 sort of saved me. I had battery draining issues in OS 3.0.1 (iPhone 3GS) .. the usage counter kept rising eventhough I didn't use it. My phone would be drained to 5% with 9 hours standby time with 7 hours usage time. This is tested when I fully charge my phone before i sleep at night, then wake up to see.

After updating to OS 3.1, no more of such issue. 3 days standby with a few hours of usage is quite a norm now before needing a recharge.

some extreme difference of experience with OS3.1. I m testing it tonite to see if it will have the same effect as your. I have restore it 3 times, the last one being a manual restore technic i found on the net and restore it as new phone in hope that the OS firmware would be downgraded to it factory firmware.... but it didn't work that way apparently...

wish me luck...

Hmmm if that is the case, why don't everyone who has battery draining problem do a software restore? Find a way to delete the OS file downloaded in temp file and then let iTunes download again. Then do a full restore. Maybe that could help? Its not really troublesome though, just 1+ hours if you have a lot of applications. The restore process is perfect and all settings will be 100% mirrored back into iPhone.

I had a battery drain issue on my iphone 3G. Then i google around and realise that safari is the culprit, because it say that it is in a loop that drain the battery, that was before 3.1. That time was 3.01. So what they basically tell is to reset the whole iphone as in restart it again not deleting everything.

So if you got battery drain issue and you feel your iphone very hot. Try holding down the home button and the standby button for it to be off and reset all the app from the loop. Wala, after that battery ok already. Back to normal.

Just my own experience

Usually I would just clear all the caches from within Safari. Then I would just FreeMemory app to clear/close all applications. By the way, a full restore is equivalent to a reset. Of course a power cycle reset is faster and less hassle.