21700 SMT Battery Holder

This is a strengthening mod based on an excellent battery holder by jkenny23. All credit goes to the original designer. If you like the model, please also click the original model link below and click like and probably post a make.

https://www.thingiverse.com/thing:4130080

You can simply buy 21700 version of SMD battery holder from Aliexpress but I have some 18650 holder in hand so I decided to print them.

This mod thicken and lengthen the area inside the battery spring plates as my first print of the original design broke after the second time I insert the battery. I also printed this in a tough material called PBT.

For the battery spring plates, you can get from 18650 battery holders that you can buy from Aliexpress. Search "18650 smd battery holder". An example is the black one on the photo.