Makita 6271D Einhell Power X-Change Adapter

thingiverse

I own numerous Einhell Power X-Change Tools and a Makita 6271D cordless Screwdriver that operates on 12V but isn't compatible with Einhell Batteries. As I was fed up with always carrying multiple types of batteries and also keeping them charged, I designed an adapter including a Step Down Converter so I can use my Makita Tool with Einhell Batteriers. All you need is an old (dead) Makita Battery as I recycled the upper half of it along with the contacts and a Step Down Converter that converts 18V to 12V. I used the following component which fits perfectly in the adapter: https://www.ebay.de/itm/10A-DC-DC-Step-Down-Konverter-Spannungswandler-Modul-7-40V-Zu-5V-12V-19V-24V/362606462581?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Just print the parts, connect the Step Down Converter, adjust the output Voltage to about 13V and the Current to maximum. As the Adapter is intended to stay on the cordless screwdriver, I designed the clips to be screwed as this was the strongest solution I found. The Einhell Adapter Part is a remix of datdiy USB-Quickcharge-Box, so credits go to him/her.