Gomadic Portable External Battery Charging Kit suitable for the Novatel Mifi 2372 Includes Wall, Car and USB Charge Options Intuitive color coded LED light indicators display when the battery is properly connected, in charging state, and fully charged. Super easy to use! Specification: Novatel Mifi 2372 Supported, Dimensions: 2.0 X 4.0 X 0.5 inches, Power Input: 110-240 VAC, USB Output Power: 5.0 VDC Gomadic Kit includes ability to charge the Novatel Mifi 2372 battery from a variety of power sources including AC wall outlets, DC car cigarette ports, or any standard USB port Ideal accessory for the frequent traveler! Fast, light weight, flexible and very compact form factor. Advanced internal circuitry protects from power surges, accidental reverse polarity, and overcharging.