18650 Battery Holder
thingiverse
I crafted this to safeguard my batteries from electrical discharge after charging. This design accommodates flat top 18650 batteries, but button top ones will fit if the lid is not screwed down completely. The photographs don't reveal it, but I have incorporated a 1mm fillet at the top and bottom. This enhances grip comfort in the hand and facilitates effortless removal from the build plate. ##UPDATE As requested by goodwid in the comments, I've added a cap with a key ring loop. Additionally, I included a cap with knurling nubs and separate files for the main body and cap.
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