Powering ESP32 With An 18650 Li-Ion Battery For Low Power Sleep

How to power your ESP32 development kit, options

Esp32 Rustesp32 Battery Shield V3/v8/v9 - 5v/3a, 3v/1a, 3.3v

ESP32: Tips to increase battery life

Low-Power ESP32 Boards

Tech Note 057 - ESP32 Ultra Low Power Test Results

Solar Powered ESP32

ESP8266 Voltage Regulator For LiPo and Li-ion Batteries

External power source and deep sleep - ESP32 Wroom : r/esp8266

Getting the ESP32 to monitor its own battery level - XTronical

XIAO ESP32C3 Battery ussage - XIAO - Seeed Forum

Powering ESP32/8266 using 18650 battery shield : r/esp32