Product typeSony type HL-D1 battery 3.6v 680mAh 2.4whMeasurements 46 x 35.5 x 5mm weight 17gmsProduct Description: Hahnel use only the most modern battery technology to make our Lithium Ion batteries. They feature a high energy density, have no memory effect and are produced to the highest quality standards. A built-in microprocessor safeguards the cells by limiting maximum voltage and by protecting against deep discharge, short circuit and overload. Features: Milliamp ere – 680mAh Volts – 3.6V Watt – 2.4Wh Compatibility: The Hahnel HL-D1 Li-Ion Battery is a replacement for the Sony NP-BD1 / NP-FD1.