Hearing aid battery tester (zinc air)

Zinc-Air Battery Tester

The RAYOVAC electronic tester allows you to precisely check the battery consumption level. Using the tester is very simple: just put the battery in the metal part of the tester, and on the LCD screen we will see a graph showing the battery level. The Tester has a tray (2 separable compartments) to store the battery. The solution ensures that the batteries do not move apart and come into contact with metal objects (when transferring the battery "loose" for example into the pocket), which could lead to a short circuit.

The Tester can be used as a key ring (it has a chain which allows it to be attached to keys, for example).