Quote:
Originally Posted by SneakySnake
I plugged it in when the computer was off and the red charging light had come on. I did transfer it to another computer mid charge because I wanted to use the computer and the USB port it was in. I think the second computer was off, but started after I plugged in the reader.
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Most computers will not charge when off.
On many if not most computers just having the machine go to sleep will turn off the red charging light. This is a feature enabling external usb devices to shutdown.