Specially designed for "OLYMPUS OM-D" Power Battery Holder can hold 1 Li-ion rechargeable battery. When combined with the "OM-D" body and the "HLD-6" total of 2 batteries, it will take approximately 650 pieces of photographs (CIPA test standard). In addition, you can set which battery to be used first. You can also connect the AC adapter (sold separately) to the DC input terminal for long continuous shooting.