Tank 4.5ah Capacity Battery for Roomba 500 510 530 532 535 540 545 550 552 560 562 570
iRobot Advanced Roomba Battery Pack DC 14.4v 3000mah Ni-mh for sale online | eBay
Buy NNEE 14.4V 3000mAh Ni-MH Rechargeable Battery Pack Suitable for Irobot Roomba at affordable prices — free shipping, real reviews with photos — Joom
Amazon.com: Synergy Digital Vacuum Cleaner Battery, Works with iRobot Roomba 4150 Vacuum Cleaner, (Ni-MH, 14.4V, 3000 mAh) Ultra High Capacity Battery : Home & Kitchen