18650 Power bank
thingiverse
You'll need an 18650 power bank module, a link to which can be found here: https://www.aliexpress.com/item/Dual-USB-18650-Battery-Charger-PCB-Power-Module-5V-1A-2-1A-Mobile-Power-Bank-Accessories/32830817985.html. To assemble this project, you will also require four 18650 batteries, available here: https://www.aliexpress.com/item/2PCS-lot-New-Protected-Original-Rechargeable-battery-18650-NCR18650B-3400mah-with-PCB-3-7V-For-panasonic/32360453063.html. Additionally, you'll need a soldering iron and some cable to complete the build.
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