Battery tester

This is a battery-tester attachment for a Harbor Freight Cen-Tech muiltimeter (the one they give away from time to time).

I love the fact that this tester tests batteries under load.

These banana plugs are Chinese Ebay. I don't recall who I bought them from. You may need to improvise with a different plug.

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Hopefully, even if you cannot use this particular design, it will inspire you to create something even better. I am still pondering improvements.

There is a remix of this (Rev B) at https://www.thingiverse.com/thing:3710762

I updated here with improved wiring channels on the back. 11/15/2020