Makita 18v battery meter

A simple volt meter to measure the voltage of Makita 18v rechargeable batteries. Since they don't have one built in.
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updated April 9, 2022

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A simple volt meter to measure the voltage of Makita 18v rechargeable batteries.
Since they don't have one built in.

Uses a cheap 3 wire LED volt meter (Amazon QR code link) or similar.

Yellow crimp connectors (from home center, auto parts store etc…)

4 M3 Hex head screws.

I printed at 0.2mm height, 3 shells and 20% infill. Only the part that has overhangs that slides onto the battery needs supports.

I used epoxy on the crimp connectors, and some hot glue to hold the meter in place.

Connect the white and red to positive, and black to negative.

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