Description
The EcoFlow DELTA Pro to Smart Generator Adapter is a branded EcoFlow adapter that goes into the extra battery port of a DELTA Pro station or a DELTA Pro Smart Extra Battery. It is needed to connect the EcoFlow Smart Generator to DELTA Pro, and for some stations also the 800W Alternator Charger. If you want to buy EcoFlow DELTA Pro to Smart Generator Adapter, check what exactly you need it for.
What the adapter is for
DELTA Pro and the Smart Generator
EcoFlow states clearly: the adapter is required when DELTA Pro is connected to the Smart Generator. Without it, a direct DC connection between the generator and the station is not possible. With the adapter, the station and the EcoFlow Smart Generator work as a system with automatic generator start.
DELTA Pro extra batteries
The adapter also fits the port of the EcoFlow DELTA Pro Smart Extra Battery. EcoFlow recommends having additional adapters if you charge DELTA Pro extra batteries separately from the station.
800W Alternator Charger with large stations
According to EcoFlow, this adapter is needed to connect the EcoFlow 800W Alternator Charger to DELTA 3 Max Plus, DELTA 3 Ultra Plus, DELTA Pro and DELTA Pro 3.

Specifications
| Parameter | Value |
|---|---|
| Model | DELTAProTG |
| Goes into | The extra battery port of DELTA Pro or DELTA Pro Smart Extra Battery |
| Used for | Smart Generator, 800W Alternator Charger |
Compatibility
- EcoFlow DELTA Pro and the DELTA Pro Smart Extra Battery: Smart Generator and Alternator Charger.
- EcoFlow DELTA Pro 3 and EcoFlow DELTA 3 Max Plus: 800W Alternator Charger.
Other stations do not need the adapter: DELTA 2, DELTA 2 Max and the DELTA 3 series connect the Alternator Charger with the XT150 cable from its box.
How to use it
The adapter takes up the extra battery port. If two extra batteries are already connected to DELTA Pro, there is no free port, and the generator is connected through the port of one of the batteries. Connect and disconnect the adapter with the station switched off.
What is in the box
The box holds the adapter itself. The generator, the Alternator Charger and their cables are sold separately. If you are buying a generator or an Alternator Charger for DELTA Pro at the same time, add the adapter to the same order so you do not wait for a second delivery. A system with one station and two batteries may need more than one adapter; we will work it out with you.
FAQ
Do I need the adapter to charge DELTA Pro from a generator socket?
No. Through the generator’s socket and a mains cable the station charges without the adapter. The adapter is needed for the direct DC connection.
Does it fit DELTA Max?
DELTA Max connects to the Smart Generator without this adapter; it is made specifically for DELTA Pro.
How do I order?
The adapter is available to order. You can buy EcoFlow DELTA Pro to Smart Generator Adapter on its own or together with a generator or an Alternator Charger.






