16650 to 18650 Battery Adapter
Description
This is a simple battery adapter to "convert" (dimensions-wise) 16650 battery to 18650 battery. My 16650 battery was not tight enough when placed in the flashlight so I decided to make a simple adapter for perfect fit. I printed this with 0.4mm nozzle and 2+ walls to eliminate air gap between external walls. *Do not* print in vase mode!
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