DUAL 16340 RECHARGEABLE LITHIUM CHARGE BOARD 5V MICRO USB POWER SUPPLY MODULE FOR ARDUINO UNO R3 ONE ESP8266 ESP32

Our engineers have carefully designed an arduino mobile power supply. Our design can get rid of the dependence
of the adapter. You can take out your artwork and share it with friends anytime, anywhere. Isn't it great!
The mobile power is stacked on the Arduino board and powered via the 5V/GND pin. We also provide a USB-A output
interface that you can use to connect to other devices using a USB cable. The charging interface is micro USB, and the
charging tool is very convenient to obtain (such as: Android mobile phone adapter). When it is stopped, it is recommended
to turn off the power output and let the mobile power supply enter the standby state, thus saving limited battery energy.