2-Pack Neato XV-21 Battery and Filter - Kit Includes 2 Neato Battery and 1 Filter (3500mAh, 7.2V, NI-MH) Replacement Neato XV-21 Battery Please check your Neato to make sure you are purchasing the correct parts One Year Warranty Capacity: 3500mAh, Upstart Battery Brand On Sale for a Limited Time!