Neato (2) New Extra High Capacity 3800 mAh Batteries XV-11 XV-12 XV-15 XV-21 Signature Pro Battery Premium International Quality Batteries for Neato Robotics Extra High Capacity of 3800 Mah 12 Month Manufacturer Warranty Compatible with Neato XV-11, XV-12, XV-14, XV-15, XV-21, Signature, Signature Pro Robotics Contains Two 7.2V Ni-Mh Battery Packs