Gomadic Portable AA Battery Pack designed for the Sony PSP GO - Powered by 4 X AA Batteries to provide Emergency charge. Built using TipExchange Technology 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 (Sony PSP GO specific), TipExchange enabled (Yes) Integrated circuitry regulates output voltage specific to the Sony PSP GO. Advanced logic maximizes overall charger efficiency. The rugged composite design is built to last. This product is backed by our comprehensive Gomadic Lifetime Warranty. This Gomadic Battery Pack is uniquely designed to work with both standard (e.g. alkaline) and/or rechargeable AA batteries.