Powerful Lithium Polymer Rechargeable Gomadic Brand Battery Pack High Capacity Portable Charger Compatible with Olympus Stylus TOUGH 8010 with upgradeable TipExchange Technology Integrated circuitry tailors output voltage and charging current to exact specification of the Olympus Stylus TOUGH 8010 (accurate to 0.1v). Very easy to operate. Simply connect Olympus Stylus TOUGH 8010, 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 (Olympus Stylus TOUGH 8010 Specific), Dimensions (2.75 X 3.25 X 0.75 inches), TipExchange enabled (Yes) Built using unique Gomadic TipExchange Technology that protects your investment by providing the ability to upgrade charging ports by simply swapping the physical connector. Elegant, compact design is approximately the size of a standard deck of playing cards. Rugged exterior is built to last and backed by Gomadic Lifetime Warranty