efluky 3.0Ah Ni-MH Replacement Roomba Battery + Replacement Accessory Part Kit for iRobot Roomba 800 Series 800 850 860 865 866 870 871 875 876 880 886 890- a set of 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 800 805 850 860 866 870 880 890 900 960 980, compatible with all 800 900 series 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, 2*bristle brushes, 2* replacement extractors , 4*filters, 3*side brushes, 2*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.