DV-66S is a 7.2V, 6600mAh Li-ion DV battery compatible with Panasonic CGA series D54S/D28S batteries. It has a 7.2V Pole-tap DC output, allows to power camera and light simultaneously. DV-66S also has a 4-level LED indicator to give you a view of remaining power before mounting to camera. The build-in intelligent circuit has multiple protections of abnormal current, voltage, and temperature.