If it wasn't bad enough that the original li-ion battery had a short life, what makes it worse is that Black + Decker don't even sell a replacement battery!  Yet you can easily access the battery assembly by backing out 2 phillips screws, sliding the cover off, and unplugging it from a 3-position connector. There is NO REASON this battery assembly could not be sold!

Instead, you are supposed to THROW AWAY the entire 20V MAX Lithium Pivot Vac product, which is several pounds of (otherwise) nicely engineered plastic and metal--burdening our already overflowing trash dumps!  And no doubt (in the mind of B+D execs) buy yet another short-lived B+D hand vacuum!  However, this is my last B+D hand vac, for sure!