【Note the product connector】:Please make sure your Shark battery model is RVBAT850 and the connector (plug) is 2 prongs, not 3-prong. Please double confirm the battery model and connector to avoid buying a wrong product 【Extended Usage Time】: Upgraded with a capacity of 3000mAh, compatible with the original battery, it can be quickly charged in approximately 3.5 hours. When fully charged, it can sustain usage for approximately 120-180 minutes. That's a 28% increase in duration compared to the 2.6Ah battery 【Find the compatible model that matches your device.】: Compatible with 2-Prong Connector: Shark Ion RV700_N, RV720_N, RV725_N, RV750_N (Attention the "_N" of model #), R75, R85, S87, RV771, RV761, RV850, RV850C, RV850BRN, RV851WV, RV871, RV871C, RV912S, RV913S, RV1000, RV1000S, UR1000SR, RV1001, RV1001AE, RV1100VL, AV751, AV752, AV753, AV911S, AV970. NOT compatible with Shark Ion RV700, RV720, RV750, RV755 (No "_N"). Because they are 3 prongs connector (plug) 【Peace of Mind in Usage】: Our products undergo rigorous inspection and certification. The top-grade A-level lithium battery ensures stable charging with built-in protection against overcharging, over-discharging, overcurrent, and short circuit 【Considerate After-sales】:We offer 12 months warranty and 24 hours service: if you have any questions, please feel free to contact us. NOTE: After using the battery, it is recommended to wait 15-30 minutes for the battery to cool down before recharging it, so that the battery will last longer YAYA-Bechine 14.4V 3000mAh Replacement RVBAT850 Battery for Shark Ion Robot R75, RV761, RV850C, RV1000S, RV1100VL, RV101AE, UR1000SR, RV700_N, RV720_N Vacuum Cleaners (2-Prong Connector)