efluky 3500mAh Ni-MH Replacement Roomba Battery + Replacement Accessory Part Kit for iRobot Roomba 500 Series 500 510 520 530 531 535 536 540 545 550 551 552 560 561 570 580 595 - a set of 10 High Capacity: 3500mAh. It can work 2 to 3 hours without problems after full charge. EFLUKY is a battery manufacturing factory. The factory has been established for 15 years, belongs to the field of advanced battery manufacturing, with the technology of Vanguard Our batteries are almost identical to the original batteries, using the highest quality cells, fast and safe charging technology and provides the charging and discharging protection to prolong the battery life. 100% Compatibility: Brand new replacement accessories part kit for iRobot roomba 500 520 530 531 535 536 540 545 550 551 552 560 561 570 580 595, compatible with all 500 series(Except 510 537 555 564 575 585 589) iRobot vacuum cleaner perfectly. Reliable Quality: All accessories kit were made of high-strength and environmental protection material. Reliable safeguard features since the iRobot replacement battery is build-in protection for short-circuit, overheat and over current. Package Including: 1*3500mAh Ni-MH replacement battery, 1*bristle brush, 1* beater brush , 3*filters, 3*side brushes, 1*cleaning tools. No Risk Guarantee: We offer 30-day money back and 12-month warranty against manufacturer defects from the date of the purchase. Any questions, please feel free to contact us and we offer professional response within 24 hours.