I have lost the battery cover on my mini tens machine and the machine wont work without it. The machine isn't sold anymore so I can't get a replacement part.
The solution depends on the design of the device. If the cover is part of the electric circuit, it gets more complicated.
To find out if this is the case: does the device work when you insert the battery and hold it in place with your finger? Then the cover isn't part of the electric circuit, and this should work:
- Find some non-corrugated cardboard.
- Cut this to the shape of the battery cover. Depending on the thickness of the cover and the cardboard, you may need multiple layers.
- Glue the layers together.
- Place the battery, put the cardboard on top, hold in place with duct tape.