<div> The ML-RMB500 battery is fully compatible with all Roomba 500, 600, and 700 series. Mighty Max ML-RMB500 Brand new Battery Pack which is compatible with iRobot Roomba Advanced Power System (APS) Battery. &nbsp;ML-RMB500 replaces the original iRobot Roomba 80501 battery&nbsp; </div> <div> <br /> </div> <div> ML-RMB500 is an Ni-Cd Rechargeable battery that keeps Roomba running at peak performance, cleaning up your room in a single charge. &nbsp;ML-RMB500 can be charged or discharged as needed without loss of capacity. </div> <div> <br /> </div> <div> <b>Battery Specifications:</b> </div> <div> <br /> </div> <div> <b>Voltage:</b> 14.4V </div> <div> <br /> </div> <div> <b>Amperage:</b> 2.0AH </div> <div> <br /> </div> <div> <b>Chemistry:</b> Ni-Cd </div> <div> <br /> </div> <div> <b>Warranty:</b> 1 Year </div>