【Compatible with 2-Prong Connector Shark Robot Cleaners】Replacement battery for Shark Ion RV700_N, RV720_N, RV725_N, RV750_N, R75, R85, S87, RV771, RV761, RV850, RV850C, RV850BRN, RV851WV, RV871, RV871C, RV912S, RV913S, RV1000, RV1000S, UR1000SR, RV1001, RV1001AE, RV1100VL, AV751, AV752, AV753, AV911S, AV970. Please Note NOT compatible with Shark Ion RV700, RV720, RV750, and RV755, as these models are 3 prongs connectors (plug). 【Important Tips】 Please make sure your Shark battery model is RVBAT850 and the connector (plug) is 2 prongs, not 3-prong models. please double confirm the battery model and connector before you purchase to avoid buying a wrong product. 【Safety & Reliable Quality】 All Remate battery replacement for shark Ion has complied with CE, FCC, ROHS certified standards, Charge faster, use safer lithium electronics technology for more comprehensive protection, needless worry about your machine catching fire. 【Install & Charge】Replacement battery for shark Ion battery is easy to install and fits perfectly, RVBAT850 Battery under full charge can running about 120 -180mins. but the specific time varies according to your machine model and age. 【After-sales Guarantee】We provide 12-month warranty, 30-day refund and 24-hour response service. If you have any questions before or after purchase, please feel free to contact us. Replacement RVBAT850 Battery for Shark Ion R75, RV761, RV850C, RV1000S, RV1100VL, RV1001AE, UR1000SR, RV700_N, RV720_N Vacuum Cleaners (2-Prong Connector,NOT for 3-Prong Connector)