Using an Arduino Nano board together with a 2.2 inch UART HMI display the batteries can provide up to 60w of power output.

It only applies to certain microcontrollers, but he provides example Arduino code showing how handy this can be for battery-powered projects.

The Supplino uses an Arduino Nano R3 and all its electronics are housed in a 3D printed case which is also available via the official product page. Supplino DIY benchtop power supply ...