Replacement battery Compatible with Models: AI Robot PRO RV2001WD RV2520A0US AV2501S UR1105ARUS ION Robot Vacuum R72 RV761 Specifications: Voltage: 14.8V, Capacity: 2600mAh, Size: 70.0 x 36.8 x 36.8mm, Type: Li-ion, Gross Weight: 260.0g Replacement battery Part Numbers: RVBAT85003 RVBAT85002 RVBAT850 RVBAT850A We are a professional battery manufacturer, Certificated with UN38.3, MSDS, ISO9701, RoHS, CE Don't worry, if you have any questions before or after sale, you can contact me by email at any time, and we will reply as soon as possible.