AVS Special Member
Join Date: May 2008
Location: San Francisco - East Bay area
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You can use any USB port for charging... it could be on a computer or USB hub or a TV or Blu-ray player or even a phone or iPad/iPod charger. When you use USB ports, they don't all operate the same way, especially on laptop computers. Laptops often disable USB ports completely when they are turned off so there's no battery drain. Some desktops may keep the part of the port that charges active even when the computer is turned off. Macintosh computers may charge while in SLEEP mode, but NOT charge when turned off... but there are so many variations on this you HAVE to check how various USB ports operate when the device they are connected to is off, on, in standby, in sleep mode, etc.
"Movies is magic..." Van Dyke Parks
THX Certified Professional Video Calibration
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Widescreen Review -- Home Theater & Sound