Olympus Bln-1 Battery Replacement battery for the OM-D Series EM-5 Camera. It is a 1220mAh rechargeable lithium-ion battery that is only able to be recharged with the BCN-1 Battery Charger. The recharging time is approximately 3 hours. With an additional BLN-1 you will never miss a shot caused by an empty battery. Perfect for longer shootings with the HLD-6 or while travelling without a possibility of recharging.