BM Premium 2-Pack Fully Decoded BLN1 Batteries for Olympus Pen F, OM-D E-M1, OM-D E-M5, OM-D E-M5 Mark II, OM-D E-P5 Digital SLR Camera BLN1 BLN-1 Li-ion Battery for Olympus Pen F, OM-D E-M1, OM-D E-M5, OM-D E-M5 Mark II, OM-D E-P5 Digital SLR Camera Battery Specifications - Energy Storage Capacity: 1500mAh /Voltage: 7.4 volts, Chemistry: Li-ion 100% Memory Free Super Long Time Recording New fully decoded chip works just like the original.(gives time left and does not need a special charger) Includes Qty 2 BLN1 Batteries + Micro Fiber Cleaning Cloth