Gomadic High Capacity Rechargeable External Battery Pack suitable for the Toshiba Camileo Z100 Specification: Internal Battery (7800mAh lithium polymer), Input port (microUSB), Output Port (Standard USB), Onboard Circuit Design (Toshiba Camileo Z100 Specific), Dimensions (2.75 X 3.25 X 0.75 inches), TipExchange enabled (Yes) Integrated circuitry tailors output voltage and charging current to exact specification of the Toshiba Camileo Z100 (accurate to 0.1v). Very easy to operate. Simply connect Toshiba Camileo Z100, press activation button on pack, and charging begins. Quick start guide included. Charging kit includes: Rechargeable Lithium Battery Pack, USB input/output cable, Toshiba Camileo Z100 Charging Connection, and Battery Pack input connection. Internal circuit protects the Toshiba Camileo Z100 from various power ailments including surges, overcharging and short circuiting. Advanced logic maximizes charger efficiency