Sordin Supreme Pro battery box and cap

The battery box

A simple DIY battery container replacement for Sordin Supreme Pro earmuffs. New printed container + 2 small screws to close it and couple of paperclips to create the connections. No soldering required.

Original container had seen better days. A battery had leaked inside it.

The replacement part is just a quick and dirty replacement, so batteries can only be changed if the earmuffs and the container is opened.

The cap

The original battery box is closed to its place from the outside  with a screw cap. So is the replacement, and it comes with it's own cap. But in the replacement, it exists only to secure it in its place. Batteries can't be changed through the hole.

Use an O-ring (or two) to seal the hole properly. If the hole is not sealed, it will carry sound through it.