Powerextra Roomba High Capacity 3500mAh Replacement Battery for iRobot R3 500 600 & 700 Series APS Battery Battery Type:Ni-MH / Voltage:14.4V / Capacity:3500mAh High quality, high capacity battery for longer running time.convenient to use Fully compatible with your tools all our products WILL NOT VOID your manufacturer warranty Brand New Replacement Product, Works as Genuine Parts.Easy to charge and connect APS battery compatible with all Roomba FloorVac models Safeguard features against incorrect voltage, short circuit, internal overheating.