ESP8266 as Window Sensor with years of battery life - YouTube
Over-Voltage Protection
Review request on battery powered ESP32 Design with NFC - ESP32 Forum
Extreme Power Saving (0µA) with Any Microcontroller: Latching Power Circuit | Random Nerd Tutorials
Add battery charger to ESP8266 and ESP32 (well done) - eMariete
GitHub - frolswe/esp-battery-logger: Simple project for the esp8266 using the power saving features of the chip to test the possibility of battery powered sensors.
V8 Mobile Lithium Battery Protector, 18650 Two Voltage Expansion Board Module, 5v / 3a 3v / 1a, Micro Usb For Arduin O Esp32 Esp - Integrated Circuits - AliExpress
Power ESP32/ESP8266 with Solar Panels and Battery | Random Nerd Tutorials
Design your own ESP Board for Battery Powered & Low Power IoT Applications - YouTube
Problem with a battery (and solar) powered Wemos D1 Mini - General Electronics - Arduino Forum
GitHub - frolswe/esp-battery-logger: Simple project for the esp8266 using the power saving features of the chip to test the possibility of battery powered sensors.
AN013 - Reverse Polarity Protection
Design your own ESP Modules for Battery Powered IoT Applications
Power Supply for ESP32 with Boost Converter & Battery Charger
Need help finding where the B- line connects in this battery charging circuit for the ESP-32 : r/esp32
12V Battery Protection Module Discharge Board Anti-Over Automatically Restore Low Voltage With LED Indicator Light - SINONING- Electronics DIY Accessories Store
Battery-Powered ESP8266 Sensor? Never Been Simpler | Hackaday
Extreme Power Saving (0µA) with Any Microcontroller: Latching Power Circuit | Random Nerd Tutorials