The BPGL65 Graphite Lithium-Ion Battery is a 65Wh intelligent "INFO" battery that communicates digitally with Sony camcorders. It features a remaining capacity indication on the viewfinder of compatible Sony camcorders, and has a V-mount attaching mechanism for quick and easy battery change. Four-step green LED indicators for quick visual verification of the battery remaining capacity (more than 80%, 60%, 40%, 20%).