W400/W450 replacement battery cover

[@TomerBenDavid]

How to replace the battery?

[@seemovielove3597]

It seems they use the same battery pack for ILife vaccum. It is 18650 type and 4 batteries in 1 pack. You can buy online and put them together to replace their pack. it costs around 5 dollars per cell for good quality one such as Samsung or LG with 5000mAh.

[@jijisuka2708]

Sadly they don't sell replacement battery