Hot Rod your old Dustbuster

Step 3 Battery pack installation.

The terminal plugs are a small spade type connector, and I found it easy to just use a stripped wire end to plug into it, as you can see in the pictures. The end terminals of the pack are currently (no pun intended) plugged into the charger via the gator clips.

The only last part that was interesting was that I had to use dike clippers to cut out the fins on the inside of the battery cover, so it would close in the new configuration.