Adapter Converter MT-XSBT01 DW-XSBT01 MIL-XSBT01 For 18V Li-ion Battery，Compatible for Shark Long life: Compared to other types of batteries, lithium-ion batteries have a longer life and are able to withstand multiple charge-discharge cycles without damage. Lightweight design: The vacuum cleaner battery module is relatively lightweight, which can reduce the weight of the vacuum cleaner, making it easier to carry and operate. Environmental protection and energy saving: The large-capacity battery of the vacuum cleaner has no pollutant emissions, which is more environmentally friendly and energy-saving than the battery used in the traditional vacuum cleaner. No self-discharge: Even if the lithium-ion battery is not used for a long time, it can maintain a low self-discharge rate and will not cause the power to be lost too quickly. Adapter Converter MT-XSBT01 DW-XSBT01 MIL-XSBT01 18V Li-ion Battery For Vacuum CleanerVacuum Part Type : Replacement BatteriesOrigin : Mainland ChinaThank you for coming, and look forward to cooperating again! Please believe that we have been working hard, if there is a mistake we will be responsible and strive to make you satisfied. I wish you a happy life and more and more beauty!