RioRand 900mAh Rechargeable Battery (2-Pack) and Rapid Dual Charger for RS4000,RS6000,SJ4000,SJ5000,SJ6000 Powered by RioRand Advanced Technology Includes 2pcs 900mAh batteries Allows you power the Dual USB Charger with included Mini USB cord, also you can use your own micro usb cable. Can be powered with most standard USB Wall or Auto Charger or a computer Charges two RS4000 camera batteries at the same time and Smart LED light indicated RED when charging and GREEN when complete