BikeMaster USB Charger Kit Features Capable of charging just about any cellphone, tablet, GPS or camera. Can be mounted to almost any surface. Includes SAE quick connectors to connect to existing battery charger lead with an input of 12 to 24-Volt DC, output of 5-Volt, 2.1-Amp (3-Amp max). 7.5-Amp fused protection Weatherproof cover to protect internal circuit