Longer Runtime - Tenergy new high capacity 4500mAh replacement battery has longer run time than iRobot Roomba original 3000mAh battery
Direct Replacement - It's designed to be a direct replacement for iRobot (Roomba) 500 510 530 532 535 536 540 550 551 562 570 572 580 590 610 760 770 780 Vacuum Cleaner series.
Reliable & Stable - Tenergy NiMH battery are used for many other industrial applications as well as many other home appliances
Better value - This New High Capacity 4500mAh replacement battery provides better value for customers.
14.4V NiMH. Weight: 1.83lb