Powerful Lithium Polymer Rechargeable Gomadic Brand Battery Pack High Capacity Portable Charger Compatible with Sanyo Camcorder VPC-TH1 with upgradeable TipExchange Technology Integrated circuitry tailors output voltage and charging current to exact specification of the Sanyo Camcorder VPC-TH1 (accurate to 0.1v). Very easy to operate. Simply connect Sanyo Camcorder VPC-TH1, press activation button on pack, and charging begins. Quick start guide included. Specification: Internal Battery (7800mAh lithium polymer), Input port (microUSB), Output Port (Standard USB), Onboard Circuit Design (Sanyo Camcorder VPC-TH1 Specific), Dimensions (2.75 X 3.25 X 0.75 inches), TipExchange enabled (Yes) Designed with a front facing LED display that clearly display the current battery capacity at the touch of a button Internal circuit protects the Sanyo Camcorder VPC-TH1 from various power ailments including surges, overcharging and short circuiting. Advanced logic maximizes charger efficiency