From: Joaquim Carvalho <jdc_at_x64.com>
Date: 08 Jan 2003 02:10:29 +0000

> As it happens, I seem to be plagued by unpowered USB hubs, so having the
> archos run and charge off USB probably wouldn't be a huge advantage for
> me, but I don't see that it shouldn't be done. In fact, I imagine I
> could build a USB cable that has a normal USB plug that the computer
> end, and terminates in a USB plug and a 9V DC plug, thus making it
> possible to run and charge the unit from USB.

A 5V 500mA supply means 250mA max. after conversion to 9V with a 90%
efficiency voltage doubler. Charging 1200mA batteries at 250mA would
take around 5 hours. Would that be OK?
What is the Archos operating current consumption? Is it below 250mA?
Received on 2003-01-08