IPhone 3G constantly plugged in

Question

Hey,
Just wondering if its a bad thing for the battery or the phone having it in constantly?
When I say constantly I mean overnight (12pm-8am) then majority of the day at work (9am-6pm).
During the day at work it will be taken off charge a few times (i.e. lunch, meetings, etc) then back on charge. Some days it may be on most of the day and others not much at all.
Thanks

Answer 1

Actually, that's not bad at all - it's good, in fact. Lithium-based batteries like the one in the iPhone perform best when used frequently but lightly. A little time on battery every day is good. The battery should last 400-500 charge cycles or ~3 years, whichever comes first. A charge cycle is use of power equal to a complete discharge and a complete charge, but not necessarily all at once. So, your usage pattern means it may take a week or so to go through a full charge cycle, and you can expect to get 3+ years from your battery.
More info is here:
http://www.apple.com/batteries/
http://www.apple.com/batteries/iphone.html
Hope this helps...