Electric Vehicle Charging: With the grounding adapter, use a DELTA Pro or DELTA 2 Max/DELTA Max/DELTA 2 to charge your EV safely as an emergency backup power, giving you the extra mile. For DELTA Pro: Use the communication cable to connect with the communication ports (ethernet ports) of the grounding adapter and DELTA Pro. Use the AC power cable to connect the AC outlet of the grounding adapter and DELTA Pro. If using the double voltage hub to charge your electric vehicle, you need an extra NEMA 6-15P to C13 or NEMA 6-20P to C13 power cable to connect double voltage hub and the grounding adapter. Then use the communication cable to connect the communication ports (ethernet ports) of the grounding adapter and any DELTA Pro connected to double voltage hub. For DELTA 2 Max, DELTA Max, DELTA 2: Use the USB-C cable to connect with the USB-C port of the grounding adapter and the left USB-C port on the DELTA Max. Use the AC power cable to connect the AC outlet of the grounding adapter and DELTA 2 Max, DELTA Max, DELTA 2. Only use the USB-C Cable included with a portable power station grounding adapter. The Cable does not have any charging function, and other USB-C cables should not be used instead.