Update: Got my first Ni-Cad Makita. It's a 6071D and the original battery shows some signs of life. Currently hijacking the charger to revive the battery. : r/Makita
Makita 6071D 7.2V Cordless Drill-7100 Charger-Metal Case UNTESTED | eBay
Makita 6071D 7.2V Cordless Drill-7100 Charger-Metal Case UNTESTED | eBay
Makita CORDLESS DRIVER DRILL 6071D Instruction manual : Free Download, Borrow, and Streaming : Internet Archive