Thread: iPad How often do you charge iPad?
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Old 07-27-2010, 05:27 AM   #65
murraypaul
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Quote:
Originally Posted by scottjl View Post
if the ipad receives 500ma it will trickle charge slowly when it is in sleep mode (screen is off) and can get a full charge from 0 to 100% in about 8 hours. it will not charge while the screen is on and the ipad is in use, this includes directly using the ipad, transferring files, syncing, etc. the screen must be off. when the screen is on it will say "not charging" because it is not charging at that time. it is charging when the screen is off.
I left my iPad backing up (with screen on) for over 24 hours, so it must have been receiving enough current to charge, otherwise it would have drained the battery. This is from an oldish ThinkPad, which I'm sure doesn't have any fancy high-powered USB ports.
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