Well maybe see if you can find the RAVPower's spec sheet to find out what the minimum Mah is. If there isn't one, you won't need to worry about only 2 usb ports and not need the thumb drive. Speaking of which, which thumb drive do we buy? I see you had to go through 1/2 a dozen to get the right one.
Also, I already have your SHA and Hovi speaker tips. Is there anything I need to add to in order to convert these from the battery sleds/power amp (SHA) to get this to work with the Anker setup?