Enhances productivity and empowers the performance of your device. When you go cordless with the HOOVER® Commercial MPWR™ 40 V battery system, your team has the swap-and-go flexibility to seamlessly recharge and replace batteries among multiple uprights and backpacks without slowing down. Battery Type: Lithium Ion; Battery Size: 40 V; Charge Time: 60 min; For Use With: MPWR™ 40V Cordless Upright CH95519; MPWR™ 40V Cordless Backpack CH93619; MPWR 40V Battery CH17360.