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Can a 5V DC 1000mA power supply be used to charge two usb 2.0 devices at once, since usb 2.0 supplies 500mA? Answered

Or how could I split a 1 amp DC line into two DC 500mA lines? (used to charge two usb devices at the same time; ipods, cameras etc..)


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11 years ago

Yes, it will work fine. You can probably charge much more than just 2 devices at once. Most devices do not draw 500mA. To get more than 100mA, the device must request it from the motherboard. Many USB charged devices run off small lithium batteries which don't need more than 100mA for charging to begin with.