Ni-MH 7.2V 3500mAh 3800mAh 4000mAh Battery for Neato Xv-11 Xv-12 Xv-14 Xv-15 Xv-21 Xv-25, Xv Essential, Xv Signature PRO Robotic Vacuum Cleaners - China Neato Battery and 7.2V Battery
Neato XV Signature Pro review: Is this boring little bot better than the Roomba? - CNET