18500 1S Battery Holder

Printing

This model prints without supports. The tolerances are pretty tight but nothing that should be a problem for a moderately tuned printer. Due to some small details I only printed with 0.2mm layer height. I recommend using 2 walls to help with the strength of the thinner parts of the holder.

Bill of Materials

• 2x Nickel strips, 8mm width and about 2 - 2.3cm length (I used ones of 0.15mm thickness)
• 2x Standard header pins
• The case itself

Tools 

• Soldering iron (solder and flux)
• Tweezers and/or mini pliers

Putting it together

Solder each header pin roughly in the middle of a nickel strip. Use flux and enough solder to cover the pin but try not to overdo it because it may then not fit in the holder slot. If you are having trouble soldering the pin put something relatively heavy on the strip and center the pin with tweezers while you solder it on. 

Once you are done insert the contacts in the slot with the solder blob facing inward and push them in (see video). The fit should be fairly tight so a bit of strategic wiggling might be in order. When the pin sticks out of the bottom you can try to pull the contact the rest of the way through. Fold the remaining strip over and the holder is done.

Dimensions

The pins are spaced to allow pcb mounting (54mm). The holes at the bottom are 30 mm apart. Total footprint of the holder should be 22 x 58 x 20.5 mm