Use this cable to connect a 9V battery to anything with a 5.5×2.1mm plug. Useful to power-up development boards (like the Arduino) with a 9V battery.
The cable has a molded 5.5×2.1mm plug on one end, and a 9V battery snap on the other. The battery snap covers the battery contacts to prevent shortcircuits, and it’s made of plastic, so it is more durable than traditional clips.
The polarity on the plug is positive at the center.
9V battery snap connector to DC male power adapter cable for Arduino DIY projects Main Features: ● Brand new and high quality ● Works with official Arduino boards ● Hard plastic T-type connector ● Material: ABS ● Length: 15cm
9V Battery Snap Connector to DC Male Power Adapter Cable for Arduino