12v Harbor freight battery to cord converter
thingiverse
This converted my old 12v impact driver from harbor freight to a cord, so I can use it in my truck after the battery died. it just snaps in, and you have to use anderson connectors, 40 amps or so, using 12v lighting cord. it does require supports, and I printed it at 0.3mm layer height with 10% infill.
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