Disappointing iPhone 3G S battery life

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I have been using my new 3G S for just over a week now, and had decided to put it through a few full charges before I started to ask about other users' experience with its battery life. I have WiFi, Bluetooth and 3G turned off in settings, and yet the 3G S's battery life is very disappointing. After fifteen minutes of listening to music or a short while checking email/surfing in Safari, the battery level lowers visibly and quite considerably.

I've contacted my network (O2 UK) who told me to try restoring the iPhone before requesting a replacement. I'll try that but I doubt it'll make much difference. Apparently I can ask for a swap for a new handset up to 28 days after purchase. I just wondered if anyone else has had this sort of experience with the new iPhone. My first generation handset had a much more impressive battery life and I wasn't doing anything differently with it.

Really pleased with the 3G S on the whole but if this sort of performance is standard I don't think I can be doing with it. With what I'd call quite minimal usage the charge doesn't even last the day.
 
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Exchange it. I get a full day out of mine with heavy usage. On a day with light usage, it still has at least half a charge left.

Here are the settings I have which could relate to battery drain.

My screen brightness is set at about 60%. Auto-brightness on. Bluetooth off. WiFi always on. Email is set to push, with fetch set for 15 minutes. Autolock is set at 1 minute.

Listening to music with the screen off should not have that much affect on the battery life.
 
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The 3.0 software seems to have really reduced my battery life on my first gen, so I'm hoping we'll see quite a bit of an improvement when 3.1 hits.
 
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I get more than a day with pretty heavy usage on these specs:

WiFi ON
Bluetooth ON
3G OFF
Push OFF
Fetch: 15 minutes
Auto Brightness: ON
 
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I listened to music for 6 hours straight and text a bunch and also made a few 10 min phone calls qnd I was at about half but my wifi was not on
 
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I have WiFi on, 3G on, listen to music most of the day at work, text, Facebook, and make a phone call here and there, and usually by the end of the day I'm around 30% or 40%. That's just how smartphones are. Blackberries, Palms, and Blackjacks/Jacks all suck battery life really fast too.
 
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That's just how smartphones are. Blackberries, Palms, and Blackjacks/Jacks all suck battery life really fast too.

this is so true.. i had a BB Storm and it was the same way if i was on it all day.
 

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