The Leica BC-DC4 Battery Charger for C-Lux 2 and C-Lux 3 Cameras is compatible with the D-Lux 2, 3, and 4 camera batteries. The charger is specifically designed to charge the original BP-DC6 battery packs. The battery has no memory effect so you may charge anytime, takes approximately 120 minutes to fully charge the battery. The charger also features built-in-green LED to indicate the charging status of battery.