Synergy Digital Vacuum Cleaner Battery, Compatible with iRobot Roomba 895 Vacuum Cleaner, (Li-ion, 14.4V, 5200mAh) Ultra High Capacity, Replacement for iRobot 4374392 Battery Specifications: Battery Chemstry: Li-ion Voltage: 14.4V Capacity: 5200mAh Compatible with: iRobot 4374392 Battery Works for: iRobot Roomba 895 Vacuum Cleaner and many more