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Hey

I have had an iTrip for a while now, and it has been useful. However, it does seem to use a lot more battery power than is ideal, despite what griffin says.
 
FWIW...

i was able to make the 6+ hour drive from memphis to new orleans while using the itrip on my 3G ipod without running out of steam before i got there. not to say that i could use it before charging once i got there, but it made it at least that far.
 
I use my iTrip all the time. I have one for my 1st gen iPod and my mini and I would say that it usually knocks about half an hour off the battery life for me.
 
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