Adafruit PowerBoost 500 Shield - Rechargeable 5V Power Shield : ID 2078 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
LiPo USB Charger Hookup Guide - SparkFun Learn
Increasing battery life by 40 times for a DYI Arduino based sea level indicator
Pin on Tutorials
4X 3.7V 2000mAh 3C 1S Lipo Battery Set Micro JST Plug for Arduino Nodemcu ESP32 | eBay
Measure lipo voltage while powering arduino - Arduino Stack Exchange
Li-Po/Li-Ion Arduino Charger Shield using BQ21040 - Electronics-Lab.com
Small Footprint Arduino Nano With USB Charging Circuit (Li Ion or LIPO) That Can Turn Itself Off (soft Latch Power) : 8 Steps (with Pictures) - Instructables
How to Power up Arduino using a 3.7V Li-Po battery - YouTube
5V 1A Micro USB Lithium Battery Charging Module Lipo Charger Board for Arduino | eBay