Mine was like this except it was 9.6 volt. Got it from a friend who's wife worked for Dewalt/B and D. He told me I could use higher voltage batteries by shaving the tabs at the top. The tabs on the Dewalt batteries (9.6, 12, and 13.2 volt) at the time were located at different spots allowing them to go only into the correct tool. There was a Dewalt/B and D repair center nearby that sold batteries of the higher voltage for pretty cheap and I ran them in that drill until the direction lever broke. I used the **** out of that drill, mostly running screws into deck boards and hanging drywall. The higher voltage never seemed to bother it.

My original Makita 9.6 volt from 1990 drill got sidelined when the batteries started going cheap. I started using a corded drill for most A/C work. After a few years I donated it to someone on the forum who had their tools stolen. Mine was sitting unused anyway, and I figured I'd go for one of the newer cordless drills. Fast forward a few years - I never got around to upgrading. But by then the new drills were starting to show their disadvantages. New voltages every few years, battery packs would typically not fit older drills, and having to buy a whole line of tools to use the new batteries. And the older packs were typically not available anymore. It turned me off. It made me miss my old Makita.Still have mine, guessing mid 80's, I added the keyless chuck.
Black & Decker 9.6 univolt

They were really “ The Best “ for their timePanasonic, possibly the first generation. It was an amazing tool in its day.
This is NOT my actual drill---my shop is not that tidy!

