Arduino board requires a USB cable connected to a laptop/PC or an external AC/DC adaptor for power supply. If you want a portable Arduino-based project, you need a battery for power supply. 9V PP3 is ...

How to Power Arduino Boards using a Battery? If you don’t want your project to depend on the main’s power, you can simply connect a battery directly to the DC barrel jack or the Vin pin, as long as it ...

Be careful. As a result, I followed this procedure and our 8,800mA battery is ready for capacity measurement. I used a battery holder to connect the battery to the board. Make sure to use thick and ...