Gomadic Advanced Sony Playstation Vita compatible AA Battery Pack Charge Kit &ndash; Portable power built with upgradeable 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. Integrated circuitry regulates output voltage specific to the Sony Playstation Vita. Advanced logic maximizes overall charger efficiency. Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Sony Playstation Vita specific), TipExchange enabled (Yes) Internal circuit designed to protect your Sony Playstation Vita from power surges, overcharging and short circuiting. Safely engineered with reverse polarity protection, in the event batteries are accidentally put in incorrectly.