HOTRONIC Power Plus 4 Rebuild

This case will allow you to rebuild your HOTRONIC Power Plus 4 foot warmers with new NiMH batteries.

First, carefully open up your battery back (don't damage the old batteries) and salvage the parts in the picture. 

Using the salvaged parts, assemble the new 3D printed battery pack (the parts go into the new enclosure the same way they came out).

Make sure everything works, then super glue the enclosure closed.