Thread: DX and USB
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Old 06-14-2009, 06:58 PM   #12
sirbruce
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Posts: 1,859
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Join Date: Feb 2009
Location: Columbus, OH
Device: Kindle Touch, Kindle 2, Kindle DX, iPhone 3GS
Quote:
Originally Posted by jharker View Post
Someone correct me if I'm wrong, but the USB 2.0 standard limits a single port to 500 mA of current. My DX wall plug is specced at 850 mA, so I assume the DX needs >500 mA to charge. So IF your USB ports adhere to spec, you will need to use more than one port.
You're right and wrong. The Kindle charges faster from the wall plug is all; from USB it asks for less amps and thus takes longer the charge.
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