OHYES BAT Battery for iRobot 3.5Ah Ni-MH Roomba R3 500,600,700&800 Series 500 510 530 531 532 533 535 536 540 545 550 552 560 562 570 580 595 600 620 630 650 660 700 760 770 780 790 800 870 880 Battery type: NiMH, Voltage: 14.4V, Our high capacity iRobot battery is rated at 3500mAh being the ideal replacement battery for roomba Replacement battery fits Roomba battery models: 510, 530, 531, 532, 533, 535, 536, 540, 545, 550, 552, 560, 562, 570, 580, 595, 600, 620, 630, 650, 660, 700, 760, 770, 780, 790, 800, 870, 880, 980 High capacity battery for longer running time. Easy to charge and connect APS battery compatible with Roomba FloorVac models. Safely charge your Ni-MH Battery for iRobot Roomba with features that will protect against overcurrent and internal overheating Products are CE, FCC and ROHS certified, tested by manufacturer to match OEM products. The charger is durable, with high quality and long life Guarantee 30-day money back and 12-month warranty against manufacturer defects from the date of the purchase