This is a slightly improved version of my first battery holder so I will delete the former one soon. It is designed to hold a 3.2 V LiFePo4 battery of size 14500 (which is the size of AA cells).
Print the holder tilted to the side as shown in the preview. Printing uprightly leads to higher risk of breakage of the clips!!
Printing with layer height 0.2mm and line width 0.44mm no support is needed.
I made the contacts out of 0.6mm silver plated copper wire (please no comments on my soldering skills!! ;-)
With some of my NodeMCU boards the battery holder fits tightly and is hold by the GPIO sockets whereas with others double sided tape is needed to mount it.
The author hasn't provided the model origin yet.