Gomadic Advanced Garmin EDGE Touring Plus compatible AA Battery Pack Charge Kit &ndash; Portable power built with upgradeable TipExchange Technology Specification: Input Voltage (4 X AA Batteries), Cable length (6 inches), Dimensions (5.0 X 1.5 X 0.75 inches), Circuit Design (Garmin EDGE Touring Plus specific), TipExchange enabled (Yes) Integrated circuitry regulates output voltage specific to the Garmin EDGE Touring Plus. 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. A must have accessory for the frequent traveler, camper or heavy Garmin EDGE Touring Plus user. This Gomadic Battery Pack is uniquely designed to work with both standard (e.g. alkaline) and/or rechargeable AA batteries.