Unique Gomadic Portable Rechargeable Battery Pack designed for the Samsung Galaxy Note 3 / Note III - High Capacity Gomadic charger that fits in your pocket Integrated circuitry tailors output voltage and charging current to exact specification of the Samsung Galaxy Note 3 / Note III (accurate to 0.1v). Very easy to operate. Simply connect Samsung Galaxy Note 3 / Note III, press activation button on pack, and charging begins. Quick start guide included. Specification: Internal Battery (7800mAh lithium polymer), Input port (microUSB), Output Port (Standard USB), Onboard Circuit Design (Samsung Galaxy Note 3 / Note III Specific), Dimensions (2.75 X 3.25 X 0.75 inches), TipExchange enabled (Yes) Built with high capacity lithium polymer rechargeable battery technology (28 Wh / 7800 mAh) in a compact design. Designed with a front facing LED display that clearly display the current battery capacity at the touch of a button