Battery Pack replacement

As it happens for many other guys, when i moved from home I had to get some power tools.
Quick solution was cheap kit with drill, sander and jigsaw for around 50$. Tools its self are actually ok, still working after more than 10 years.
Wish I could say the same about Ni-MH/Ni-Cd batteries (we all know that)

During the time I've got a bunch of Black&Decker 18v(20V) Lithium batteries and dicided to use them for power those tools.

Getting power from batteries was easy, i've found the mount