Minimalist Makita Battery Adapter

thingiverse

If you ever wanted to harness your Makita battery as a portable power source, that's exactly what you need. Designed for straightforward installation, this device features an integral latch that securely attaches to the battery. To get started, create two conductors - you might be able to utilize folded aluminum foil (testing is ongoing). The pre-drilled holes in the printed component are designed for direct screwing of M3 screws into plastic; they should measure approximately 2.7mm in diameter, so you may need to enlarge them if they're too small. The conductors themselves are 1mm thick and can be made from almost any available metal. Cut two pieces, each 8mm wide and 55mm long, then drill 3mm holes using the drilling jig (you might want to start each hole with the jig since metal shavings can damage it). Two M3 screws secure each conductor to the printed component, while one screw also attaches the wire to the conductor. The third hole serves as a strain relief. Ensure that the screws are at least 8mm long and no more than 20mm (any longer and they'll short circuit inside the part). For high currents, you may prefer to attach the wire to the conductor using a dedicated screw in the last hole or solder it directly to the conductor if it's made of a solderable metal.