VNH-101 : 14.4v 4500mAh battery for Roomba 500 600 700 800 900 series
$ 34.95
VNH-101 : 14.4 volt 4500mAh rechargeable LONG LIFE Ni-MH battery for IROBOT Roomba vacuums. Replaces original battery #s 80501, 53847243.
Battery dimensions: about 6.2" long, 2.2" tall, 2.2" wide
Fits Roomba models R3, 500, 510, 531, 535, 540, 550, 552, 560, 570, 580, 595, 600, 620, 650, 660, 700, 760, 770, 780, 800, 870, 900, 80501, 4419696, etc.