Mr.Batt 4500mAh High Capacity Ni-MH Replacement Battery for iRobot Roomba 500 600 700 800 Series Robot Vacuums;

Specifications:
Battery Type: Ni-MH
Voltage: 14.4V
Capacity: 4500mAh
Power: 64.8Wh
Dimension: 5.7 x 2.7 x 2.5 inches
Weight: 1.7 pounds

Compatible Models:
iRobot Roomba 500, 501, 510, 520, 521, 525, 530, 531, 532, 533, 535, 536, 540, 545, 550, 551, 552, 555, 560, 562, 563, 570, 580, 581, 585, 590, 595, 600, 610, 620, 625, 630, 650, 660, 700, 760, 770, 780, 790, 800, 860, 870, 871, 880, R3, Pet

Packages:
1 x Replacement Battery for iRobot Roomba 500/600/700/800 Series

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