Can I charge Dualcharge with a power source?
Yes, you can charge Dualcharge with the supplied USB cable. Simply plug the USB cable into the micro USB input port, and the other end into a computer or a 5V 1A adapter plug that you normally use to charge your mobile device. LEDs will flash and show the increasing power level as it is being charged. When all 4 LEDs are turned on and stopped flashing, Dualcharge is fully charged and ready for charging your device(s).