Gomadic Advanced HP iPAQ hx2495 / hx 2495 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 (HP iPAQ hx2495 / hx 2495 specific), TipExchange enabled (Yes) Integrated circuitry regulates output voltage specific to the HP iPAQ hx2495 / hx 2495. 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. Safely engineered with reverse polarity protection, in the event batteries are accidentally put in incorrectly. This Gomadic Battery Pack can be reused forever by simply inserting fresh batteries, providing instant power on demand.