Portable power source for low power usb device when away from computer?
"works only on voltages of 2000mA or higher, such as a PC. It will not work while connected to a USB or home charger, or with a Mac"
I would like to use this when away from my computer and think one of the Altoid power chargers would work. Would like to make a solar one for the car, but regular for inside the house.