Smatree Li-Polymer Battery (2-Pack) 1290mAH for GoPro Hero 3 3+ Camera Rechargeable Li-Polyer Battery comes with 1290mAh for higher capacity Assembled with high-tech Japanese cells for longer battery life and safer Equal or Exceed Original battery;compatible with camera Contents: 2 x Smatree Li-Polymer Battery(1290 mAh) 3-year manufacturer warranty