BLX-1 2500mAh Battery for Olympus OM System OM-1, OM-1 Mark II, OM-3
FOR Olympus OM System OM-1, OM-1 Mark II, OM-3. Inbuilt into each Dot.Foto battery is a safety system which gives short circuit protection and prevents the battery from overheating. DMW-BLK22 USB-C Battery for Panasonic Lumix.