Superb Choice 14.4V VACUUM CLEANER BATTERY for Roomba 500 510 530 532 560 562 570 580 610 80501 R3 500 535 540 550 760 770 780 Voltage:14.4V Cell type:Ni-MH Capacity:3000mAh 30-Day Money Back Guarantee. 1 Year Warranty Before purchase please make sure all the technical specifications and the model No. match with your power tool battery.