Pack Battery Holder for 18650

thingiverse

I've created this battery holder to simplify bench tests where you need 3 18650 batteries without having contact springs on the poles of each battery. In the cavity of each cover, a serial or parallel closure can be made according to your needs (check the photos), with the wire playing the role of contact springs, making this battery holder cheaper, more practical and functional. To assemble it, you'll need 2 M3x10mm screws, some pieces of wire, and 2 metal inserts with an M3 thread (see the link below). https://pt.aliexpress.com/item/100pcs-Brass-Tone-Round-Metal-Knurl-Thread-Insert-Nuts-4-2mm-M3-3mm-For-Metalworking/32847125264.html?spm=a2g03.10010108.1000016.1.6ade35b7X5duC3&isOrigTitle=true The metal inserts are inserted hot into the plastic in the central hole on each side of the body part. You can also use a large M3x85mm bolt with nut and washer through both covers instead of metal inserts.