- Connector Dimension: OD 5.5mm, ID 2.1mm
- Installation Dimension: (See photo)
- Connection: (see photo)
- Can wire to external power supply and battery the same time.
- Center lug is to connect to the battery if you need it.
When you plug in the external power supply, it breaks the battery connection.
When you remove the external power supply, connection to battery is established.
Wrong polarity can damage your DC device.