This device is Brilliant since it can either CHARGE completely or be used as an external power source for your RH1 (or any other USB powered device such as some mobile phones etc).
The one feature that I felt was lacking on the RH1 was that there wasn't the option to power it from a portable external source such as an external battery pack if you were on the road. Also means you can use your RH1 even if the internal battery is empty.
This device overcomes the limitation of only having an internal battery.
Edited by 1kyle, 17 September 2008 - 06:31 AM.