Battery tester with load resistor

Holder for AA and AAA batteries for connection to multimeter.


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The battery to be measured can be inserted and removed easily because the holder is open at the side. The two holders are connected in parallel (yellow wires).

The red wire goes through a tunnel to the other side. Voltage measurement with multimeter under load through a resistor on the red wire. I am currently using a 100 Ohm resistor (it depends on where the battery will be used).

For battery contacts with a contact plate 13.5 x 11.5 mm. These should fit:
Two 4 mm banana jacks.

Materials and methods

PLA, 0.3mm, no supports required (the tunnel should be printable by using bridging)

DesignSpark Mechanical file included



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2c108f78f216d831654657e4c3555cbb?default=blank&size=40Hans W. published this design ago