2 x INNOPOW 7.2V 5200mAh Lithium Replacement Battery for Neato XV-11 XV-12 XV-14 XV Essential XV Signature and XV Signature Pro Battery Voltage:7.2V Capacity:5200mAh Battery Type:Lithium. 3 months warranty! Save money by using a lithium and battery Longer operating time This battery helps prevent against damage caused by overcharging, overheating, and short circuiting 4x longer battery life than Neato batteries and all aftermarket replacement batteries. No item quality issue return request,the return and send shipping cost will be charged on your side