1-10pcs Tc4056a Lithium Battery Charger Module Type C Usb 5v 1a Charging Board With Protection Functions Pcb For Arduino Diy - Integrated Circuits - AliExpress
Build a Lithium-Ion Battery Charger on Arduino | μF
How to make an Arduino Battery Charger - YouTube
Create an Arduino Controlled Battery Charger - Projects
5V Mini USB 1A Lithium Battery Charging Module Lipo Charger Module for Arduino | eBay