How long SHOULD battery last?

I've read 100's of posts on this and have yet to get an answer--how long should I expect my battery to last when my ipod is on, with screen on (auto lock on NEVER), doing nothing, no apps open (actually I removed all apps for this test), wifi OFF, location OFF, everything possible OFF, so just the screen on. This is ipod touch 8gb "3rd" gen, has os 4.2 but problem was same before with os 3.1. I get about 8 hours before battery dies. Is this normal? Warranty is just about up and I need to decide whether to pursue this with Apple. Thanks!

frostytheiceman wrote:
how long should I expect my battery to last when my ipod is on, with screen on (auto lock on NEVER), doing nothing, no apps open (actually I removed all apps for this test), wifi OFF, location OFF, everything possible OFF, so just the screen on.
Not as long as if you let the screen turn off. As lllaass mentioned, the screen uses a lot of power and as far as I know, when Apple test an iPod's battery time, it's on the assumption that you do not leave the screen on. Their figures would be based on that and it's largely the reason why watching a video has less battery time that listening to audio.
So if you're not watching video, the battery will last a lot longer if you set the auto lock to - say 1 minute. More to the point, if you're not looking at the screen, why leave it turned on?
My own choice is for the auto lock to kick in after 1 minute. That way, - if I'm browsing the music section, or reading a web page or browsing my Apps, my constant navigation around the Touch keeps the screen on. If I stop doing that and simply listen to music, after 1 minute the sreen turns off and battery time is extended.
You say that you have yet to get an answer to how long the battery should last. If you check the technical specifications for the latest iPod Touch, http://www.apple.com/ipodtouch/specs.html you'll see that playback time for video is 7 hours and playback time for audio is 40 hours from full charge. So if you have auto lock on never, I suggest that 8 hours is probably reasonable since it's the virtually same as watching video.
Phil

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Message was edited by: Adam White

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