Battery Adapter for AAA to AA
grabcad
This is my battery adapter design for AAA to AA standard batteries. Useful when you only have AAA batteries and your equipment needs AA batteries for operate. For emergency purposes, because AA batteries has 2400 mAh capacity and AAA just 1000 mAh. The negative bottom contact can make with a ribbon of aluminum foil of 6mm (1/4") or a screw M2.5 x 6 (2.5mm Ø x 6mm), or a piece of wire even. The adapter have a 3% tolerance for best battery fit. You can modify the through-hole (without thread) for use any screw that you have available. Solidworks and STL compatible.
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