Extended Cleaning Power This 21.6V battery with 3500mAh capacity provides up to 40 minutes of runtime, enabling thorough cleaning of large spaces without needing a recharge and boosting efficiency. Fit Compatibility Designed for specific cordless vacuum models, this battery ensures seamless integration and suction performance, making installation quick and hassle. LithiumIon Cells Constructed with lithiumion technology, it delivers reliable power, longer cycle life, and consistent performance for demanding cleaning tasks. Easy Installation Design The battery features a userfriendly, tool replacement that allows you to swap quickly and resume cleaning with minimal downtime. Practical use scenarios Cleaning a large living area or openplan space in a single session without midclean interruptions. Regular upkeep of multiple rooms with both hard floors and carpet, including stairs and upholstery. Quick cleanups in a car, SUV, or garage where fast replacement keeps you cleaning without extended downtime.