BM Premium BP-1900 Battery and Battery Charger for Samsung NX1 Digital Camera BP1900 Li-ion Rechargeable Battery for Samsung NX1 Digital SLR Digital Camera Battery Specifications - Energy Storage Capacity: 18600mAh /Voltage: 7.4 volts /Wh: 13.8Wh, Chemistry: Li-ion 100% Memory Free Super Long Time Recording battery has a one-year warranty Includes BP1900 Battery + Battery Charger + Micro Fiber Cleaning Cloth