BAKTH 2 Pack 3500mAh 7.2V NiMH Replacement Battery For Neato XV Series XV-11 XV-12 XV-14 XV-15 XV-21 Robotic Vacuum Cleaner 205-0001 945-0005 945-0006 (2017 New version) Upgraded Neato replacement batteries pack. Made with high quality battery cells. Longer working time for your Neato Robotic vacuum cleaner. (2 Pack on the package) Battery Type: Ni-MH; Capacity: 3500mAh; Voltage: 7.2V. Compatible with your Neato Robotics 205-0001 945-0005 945-0006 945-0024. Stable performance. Safeguard features against incorrect voltage, short circuit, internal overheating. CE and ROHS certified. Battery for Neato XV11 XV12 XV14 XV-15 XV21 XV25, XV Essential, XV Signature and XV Signature Pro Robotic Vacuum Cleaners. 12 months warranty. The 2 pack of batteries ought to be used simultaneously. If one of them is used with an other brand battery improperly, this would lead to errors based on different capacity and cells.