Found this via Thingiverse.com
The site has instructions for making it if you are interested. I think I might make one.
Things - Adam Mayer Digitally Designed Geared Business Cards from Bre Pettis on Vimeo.
Playing Around with the MH-CD42 Charger Board
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If you’ve ever worked with adding lithium-ion batteries to one of your
projects, you’ve likely spent some quality time with a TP4056. Whether you
implemen...
1 hour ago