【Specification】 Model: RVBAT850，Battery Voltage: 14.4V，Capacity: 3400mAh，Battery Type: Lithium ion，Same size and function as original battery, easy to install and fit perfectly with Shark ion robot vacuum cleaners. 【Perfect Fit】This RVBAT850 replacement battery perfect compatible for Shark ion R75, R85, S87, RV771, RV761, RV700_N, RV720_N(Attention the “_N” of model), RV850, RV1000S, RV1001AE, AV751, AV752, AV753 and more 2-Prong connector vacuum cleaners. NOT compatible for Shark ion RV700, RV720, RV750, RV755(3-Prong Connector). 【2-Prong Connector】Please make sure your RVBAT850 battery connector(plug) is 2-prong battery and not is 3-prong. Please double confirm the battery model and connector to avoid buying a wrong product 【Fast Charge and Safe Battery】Compatible for original charger station, fast charge from 0-100% about 3.5 hours. High quality battery cell delivers stable and reliable power for your devices, against overcharge, over discharge, over current, short circuit, protect your vacuum far away from potential damage.NOTE: Just after using the battery, must wait 15-30mins to cool before charging 【What You Get】1 x 3400mAh Replacement Battery, 1 x Screwdriver Tools. and also come with a 12-month product warranty to ensure your risk-free purchase, if you have any questions before or after purchase, please feel free to contact us. Robot Vacuum Cleaner Battery RVBAT850 for Shark Ion Robot R75 R85 R761 RV761 RV850 RV1000S RV1000VL RV1001AE UR1000SR RV700_N RV720_N Vacuum Battery (2-Prong Connector,NOT for 3-Prong Connector)