iPhone 3g USB vs outlet charging
dizzy says...
on Jul 29th, 2008 @ 1:31 am
UPDATE: USB vs outlet charging comparison now available here

I haven’t done thorough testing of this yet (hopefully I can do this in the not too distant future), but I have a feeling there is a pretty significant difference between USB charging vs wall outlet charging. I just plugged in my 100% drained iPhone into my USB jack on my computer and it showed it was charging with the big battery icon, but wouldn’t power up. I then plugged it into the wall outlet charger and it immediately turned on!
So I would suggest that if you are in a hurry for a quick charge plug it into the wall or car charger vs your computer.
UPDATE: Within 40 mins of charging on outlet it was about 80% charged and at about 90 mins it was almost fully charged

