Gomadic Portable AA Battery Pack designed for the Pure Digital Flip Video MinoHD - Powered by 4 X AA Batteries to provide Emergency charge. Built using TipExchange Technology Integrated circuitry regulates output voltage specific to the Pure Digital Flip Video MinoHD. Advanced logic maximizes overall charger efficiency. Built using the unique Gomadic TipExchange Technology that protects your investment by providing the ability to upgrade charging ports by simply swapping physical connectors. Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Pure Digital Flip Video MinoHD specific), TipExchange enabled (Yes) Easy to operate. Simply insert batteries, toggle on/off switch and your Pure Digital Flip Video MinoHD will start to charge. This Gomadic Battery Pack is uniquely designed to work with both standard (e.g. alkaline) and/or rechargeable AA batteries.