Description
The EcoFlow Extra Battery Expansion Adapter lets you connect two extra batteries to the EcoFlow DELTA 3 Max Plus station instead of one. DELTA 3 Max Plus has only one expansion port, and the adapter turns it into two. If you want to buy EcoFlow Extra Battery Expansion Adapter, check the key point first: you only need the adapter for two batteries; a single battery does not need it.
Why you need the adapter
DELTA 3 Max Plus has 2048 Wh of its own capacity. With one DELTA 3 Max Plus Smart Extra Battery the system reaches 4096 Wh. To add a second such battery and get 6144 Wh, you need this adapter: it connects two batteries to the station port with a single cable.
Which batteries can be connected
For DELTA 3 Max Plus, EcoFlow lists these compatible batteries:
- DELTA 3 Max Plus Smart Extra Battery with 2048 Wh;
- DELTA Pro 3 Smart Extra Battery with 4096 Wh;
- DELTA 3 Smart Extra Battery with 1024 Wh;
- DELTA 2 Max Smart Extra Battery with 2048 Wh.
The total capacity depends on which two batteries you combine. For example, two DELTA 3 Max Plus batteries give 6144 Wh together with the station. The station’s European page states an upper limit of up to 10 kWh for the system.
Compatible station
- EcoFlow DELTA 3 Max Plus – the main station for the adapter in our catalogue.
- DELTA 3 Ultra Plus – EcoFlow’s US page also lists it as compatible, but this station is not in our catalogue.
The adapter does not fit DELTA 3 Max: it has no expansion port at all. Stations with two ports of their own, such as DELTA Pro and DELTA Pro 3, do not need it.
Who it is for
- DELTA 3 Max Plus owners for whom 4 kWh with one battery is not enough.
- Those who already have one battery and want to add a second without changing the station.
- A home with long power cuts, where the station powers the boiler, fridge and lighting.
Specifications
| Parameter | Value |
|---|---|
| Model | EFD3MP-EB-1T2 |
| Purpose | two extra-battery ports on one station port |
| Compatible station | DELTA 3 Max Plus (in our catalogue), DELTA 3 Ultra Plus |
| Compatible batteries | DELTA 3 Max Plus, DELTA Pro 3, DELTA 3, DELTA 2 Max Smart Extra Battery |
| Maximum system | up to 10 kWh according to EcoFlow |
EcoFlow does not publish electrical specifications for the adapter.
How to connect
Switch the station off. Connect the adapter cable to the DELTA 3 Max Plus expansion port, and the two batteries to the adapter’s ports. Switch the station on: both batteries should appear in the EcoFlow app. Update the station firmware to the latest version so it recognises two batteries correctly.
Frequently asked questions
Do I need the adapter for one battery?
No. A single battery connects to the station port directly.
Can I connect three batteries?
No. The adapter has two ports, so the maximum for DELTA 3 Max Plus is two extra batteries.
When will the adapter be in stock?
EcoFlow is only starting to sell the adapter in Europe, so we take it on pre-order. The manager will confirm the delivery time after you order.
To buy EcoFlow Extra Battery Expansion Adapter, place an order on the website: we ship by Nova Poshta across Ukraine, and you can pay on delivery.
