Here is the adapter on my second Stout bandsaw... it looks like it was made to fit the saw... I got this one from a pawn shop for cheap because it was missing the charger. This one I'm going to convert to use just my Ryobi batteries, I may add the XT-60 connector while I have it apart.

Stout was the first company to have a cordless portable bandsaw on the market. The DeWalt bandsaw is nothing more than a rebadge stout with minor cosmetic changes all the drivetrain and frame are the same just yellow.