battery charger 18650
thingiverse
You'll need a TP4056 Micro USB Charger rated at 5V 1A as an example can be found here: https://www.roboter-bausatz.de/1047/tp4056-lithium-lipo-lion-akku-solar-lademodul-fuer-arduino?gclid=CjwKCAjww6XXBRByEiwAM-ZUIMagcjL3u2kdbFCr_Aq52Z-uD3mcoPd6Y5buQuxriMdffRnSM2e8rxoCad8QAvD_BwE. A soldering tool, a metal object, and an 18650 battery are also required. If desired, there is a hole on the side for connecting to 5V.
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