◆ Li-ion battery pack of 7.2V nominal voltage
◆ Comparable to JVC BN-VF823 DV battery
◆ Display remaining power info on camera viewfinder
◆ 18Wh / 2.5Ah capacity
◆ 4-level LED power indicator
◆ 7.2V Pole-tap DC output
◆ Multiple circuit protections
For more information see this link