ESP8266 WEMOS ESP32 V3 Development Board With 18650 Battery Holder


The ESP-32 is the newest and fastest ESP board by Espressif out there. It incorporates WiFi and Bluetooth in one easy to program package. It is easily programmable in the Arduino IDE.


These power bank module boards have built-in lithium battery protection circuit with over current, over voltage, under voltage and short circuit protection. The USB port output and mobile power supply board have extended 3V and 5V output to facilitate customer requirements and usage, solving the problem with few ports.

The LEDs indicate the ON/OFF switching and operation modes.


  • Motherboard size: 100x97x21mm (3.9×3.8×0.83in).
  • Input connector: Micro USB, wide voltage input up to 6.5V.
  • Input requirements: 5V constant voltage power supply, suitable charger 5V/1A or above
  • Output connector: USB or expansion connector
  • Output: 5V/1A or 3V/1A
  • Conversion efficiency: up to 95% (high conversion rate)
  • Operating temperature: -20 ~ 70°


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