The following instruction is only useful for electrically talented people. No liability is assumed for damages resulting from this!

For a quick check of the battery voltage I wanted to use a 0.36" LED DC Digital Voltmeter Panel from ebay. The DC socket with small dimensions allows a compact design.

With sheet metal screws (2,9x6,5) I fixed the DC socket and soldered it to the short wires of the module. The cover is fixed with four screws (M3x12mm) and nuts. Finally I printed a 12mm wide label with my P-Touch and glued it on.

vy 73 es 55 de DH1ND