Add battery charger to ESP8266 and ESP32 (well done) - eMariete
ESP32 Thing Plus (USB-C) Hookup Guide - SparkFun Learn
ESP32 – Getting Battery charging level
Amazon.com: MakerFocus 4pcs 3.7V Lithium Rechargeable Battery JST1.25 Connector 2pin, 952540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board : Toys & Games
Power ESP32/ESP8266 with Solar Panels and Battery | Random Nerd Tutorials
Can I use this module to convert the 3.7v on a 18650 li-ion battery to 5v for powering my esp32 cam? If not, what should I use?(sorry for the romanian link that
Easy battery powered Mailbox Door IoT sensor using ESP32 ← ABrandão.com
MakerFocus 4pcs 3.7V Lithium Rechargable Battery JST1.25 Connector 2pin, 852540 3.7V 1000mAh Battery with Protection Board and Insulated Rubber Tape Compatible with ESP32 Development Board W - Walmart.com
ESP32 Mailbox works on USB power but not battery - Need Help With My Project - Blynk Community