The EcoFlow Portable Power Station Grounding Adapter Lets a DELTA Power Station Charge Your EV as Emergency Backup Power
The EcoFlow Portable Power Station Grounding Adapter connects to an EcoFlow DELTA power station so you can use it to charge your electric vehicle as emergency backup power. It links to the power station with an AC power cable plus a communication or USB-C cable.
It is for EV drivers who own a compatible DELTA power station and want a backup way to give the car extra miles.


EcoFlow Portable Power Station Grounding Adapter Features
EV Charging From a DELTA Power Station
With the adapter, EcoFlow says you can charge your EV from a DELTA Pro, DELTA Max, DELTA 2 or DELTA 2 Max as emergency backup power. EcoFlow also lists the DELTA 3 Classic, DELTA 3 Max, DELTA 3 Max Plus, DELTA 3 Ultra and DELTA 3 Ultra Plus.
AC Charging Locks Out for Safety
After the adapter and the power station identify each other, the power station's AC charging function is disabled. EcoFlow does this to keep EV charging safe.
A Port for Each Connection
The adapter has an AC input port, a USB-C output port and a communication port. A DELTA Pro links through the communication (ethernet) port. A DELTA Max links through the USB-C port.
Works With the Double Voltage Hub
To charge an EV through the Double Voltage Hub, connect the hub to the adapter with a NEMA 6-15P to C13 or NEMA 6-20P to C13 power cable, sold separately. Then run the communication cable to any DELTA Pro connected to the hub.

Real-World Applications
Power outages. Give your EV extra miles from a DELTA power station when the grid is down.
Emergency backup. Keep the adapter with your DELTA as a backup way to add miles.
Two DELTA Pro units. Charge through the Double Voltage Hub with the extra hub cable.

How It Compares to Common Alternatives
Versus a generic USB-C cable. The USB-C cable that comes with the adapter is a custom cable with no charging function. Universal USB-C cables aren't compatible, so keep the included one with the adapter.
Versus the Double Voltage Hub setup. A single DELTA Pro connects directly. The hub setup adds a separately sold power cable between the hub and the adapter.

Is This Grounding Adapter the Right Fit
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Compatible models. The user manual names the DELTA Pro and DELTA Max, and EcoFlow also lists the DELTA 2 and DELTA 3 models above. Ask us if you're unsure.
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Use the included USB-C cable. Other USB-C cables should not be used in its place.
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Temperature. It operates at 14°F to 113°F (-10°C to 45°C).
This may be a good fit if
- You drive an EV and own a compatible DELTA power station
- You want emergency backup charging for the car
- You run two DELTA Pro units on a Double Voltage Hub

Common Questions
Which USB-C Port Do I Use on the DELTA Max?
Plug the USB-C cable into the left USB-C port on the DELTA Max. Don't use the right USB-C port.
Which AC Power Cable Should I Use?
EcoFlow recommends the DELTA Pro power cable with a DELTA Pro and the DELTA Max power cable with a DELTA Max.
What Warranty Does It Have?
EcoFlow offers a 24-month warranty when you register the adapter.
What's Included
- 1 x EcoFlow Portable Power Station Grounding Adapter
- 1 x USB-C Cable
Emergency EV Charging From Your DELTA
The EcoFlow Portable Power Station Grounding Adapter lets a compatible DELTA charge your EV as emergency backup power. If you have questions about your model or setup, the Outbound Power team is happy to help.
EcoFlow Portable Power Station Grounding Adapter Specifications
|
| Electrical |
| AC Input Voltage |
100-240V~ 50/60Hz |
| USB-C Supply Voltage |
5V, 300mA max |
| Network Port Supply Voltage |
12V, 300mA max |
| Ports |
| Ports |
AC input, USB-C output, communication |
| Communication Port |
Ethernet type, DELTA Pro only |
| USB-C Port |
DELTA Max (left USB-C port) |
| Compatibility |
| Named in Manual |
DELTA Pro, DELTA Max |
| Also Listed by EcoFlow |
DELTA 2, DELTA 2 Max |
| Also Listed by EcoFlow |
DELTA 3 Classic, DELTA 3 Max |
| Also Listed by EcoFlow |
DELTA 3 Max Plus, DELTA 3 Ultra |
| Also Listed by EcoFlow |
DELTA 3 Ultra Plus |
| Double Voltage Hub |
With DELTA Pro units |
| Hub Cable (Sold Separately) |
NEMA 6-15P or 6-20P to C13 |
| Safety |
| AC Charging Lockout |
On when adapter is identified |
| USB-C Cable |
Included custom cable only |
| Environment |
| Operating Temperature |
14°F to 113°F (-10°C to 45°C) |
| General |
| SKU |
ZMA003-C14 |
| Warranty |
| Warranty |
24 months |
| Warranty Condition |
Product registration |
EcoFlow Portable Power Station Grounding Adapter Manual