DIY 18650 battery pack
thingiverse
This is a DIY single 18650 rechargeable battery pack to charge 5V gadgets. The case cover comes with slide function. Use "Flexing battery holders 18650" from Heinz Spiess... (thanks for that :-) Which fits perfectly in my case. Use little hot glue to fix it. Charging electronic you can easily buy on eBay: Seach for "5V DC-DC Step Up Li-ion 18650 Battery Charger 134N3P Module Board DIY Powerbank" May you have to use supports, may not... Push the electronic in place and fix it also with little hot glue. I recommend to connect everything with wires and check for proper operation before to use glue :-) To see LED status (red) i used transparent PLA.
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