Using this power supply is easy. First, connect the power supply to your device with the provided connection cable. Make sure the connection is secure to avoid power interruptions. When using, keep it in a dry and cool place. Don't expose it to direct sunlight or wet environments. For maintenance, regularly check the cables for any signs of damage. If you find any issues, replace the cables immediately. Also, don't overload the power supply to ensure its long - term performance.