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The iPod Photo, however, takes about five hours to fully charge. If you just can’t wait to unplug it and go racing out to show your friends, you can begin to use it after a couple hours. Note, however, that it gets about 80 percent charged after 2 hours (Minis only take about an hour to get the 80-percent power rush). It takes about four hours to fully charge your iPod. For USB 2.0, you need a powered jack like those on the back of the computer, or on a powered USB hub-not, for example, the unpowered jack at the end of a keyboard.) The battery charges as long as the computer is on and not in Sleep mode. (For FireWire, “powered” usually means the fatter 6-pin FireWire connector, not the little 4-pin connectors found on many Windows machines. If your Mac or PC has powered FireWire or USB 2.0 jacks, you can charge up the iPod just by plugging it into your computer.
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