In this Blog, I'll show you how to add a battery and charger to any microcontroller based project based on an Arduino, ESP8266, ESP32, or any other microcontroller. This in a correct, safe, easy and cheap way.
FireBeetle Home Smart Mesh
battery charging - ESP32 with Li-po PCB review request - Electrical Engineering Stack Exchange
ESP8266 ESP32 Power Supply Dual 16340 Battery Charger Shield Module For Arduino
Esp32 with battery charger Resources - EasyEDA
2-in-1 Serial Bridge for ESP32 + Battery Charger from OBJEX on Tindie
Power Supply for ESP32 with Boost Converter & Battery Charger
MELIFE 18650 Battery Shield, Micro USB V3 for ESP32 India
Add battery charger to ESP8266 and ESP32 (well done) - eMariete
ESP32 Solar Weather Station : 4 Steps (with Pictures) - Instructables
Esp32 Esp32s for Wemos for Raspberry Pi 18650 Battery Charge Shield Board V3 Micro USB Port Type-a USB 0.5A - China 18650, 18650 Battery Charge Shield Board
ESP32 ESP32S For Wemos For Raspberry Pi 18650 Battery Charge Shield Board V3 Micro USB Port Type-A USB 0.5A Charge
ESP32 – Getting Battery charging level
Esp32 Esp32s for Wemos for Raspberry Pi 18650 Battery Charge Shield Board V3 Micro USB Port Type-a USB 0.5A - China 18650, 18650 Battery Charge Shield Board
Power Management, Adafruit HUZZAH32 - ESP32 Feather
Esp32 battery charging rate - General Electronics - Arduino Forum