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EcoFlow Smart Extra Battery for DELTA Pro Power Station

BH #ECDELTAPROEB • MFR #DELTAPROEB-US
78 reviews
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EcoFlow Smart Extra Battery for DELTA Pro Power Station
Key Features
  • Doubles Power of EcoFlow Delta Pro
  • Charge from AC, Solar, or EV Port
  • 3000-Charge Cycle Lifespan
  • Monitor & Control on EcoFlow App
This Smart Extra Battery is designed to boost the energy storage capability of the EcoFlow DELTA Pro Portable Power Station. The lithium-ion phosphate battery has a capacity of 3600Wh, doubling the capacity of the DELTA Pro, and can be recharged 3500 times to 80% capacity. Charging methods include AC outlets, EV charge stations, the EcoFlow Smart Generator, vehicle DC port, and solar panels. In all cases, but the Smart Generator, the extra battery must be connected to the DELTA Pro for charging.
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$1,199.00
$1,999.00
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EcoFlow DELTAPROEB-US Overview

This Smart Extra Battery is designed to boost the energy storage capability of the EcoFlow DELTA Pro Portable Power Station. The lithium-ion phosphate battery has a capacity of 3600Wh, doubling the capacity of the DELTA Pro, and can be recharged 3500 times to 80% capacity. Charging methods include AC outlets, EV charge stations, the EcoFlow Smart Generator, vehicle DC port, and solar panels. In all cases, but the Smart Generator, the extra battery must be connected to the DELTA Pro for charging.

UPC: 842783106636

EcoFlow DELTAPROEB-US Specs

Power Station
Battery Capacity
3600 Wh
Battery Chemistry
Lithium Iron Phosphate
Compatibility
EcoFlow:
  Delta Pro
Input/Output
Input/Output:
1x Expansion
Life Cycle
3500 Cycles (80% Battery Capacity)
Hardware
Dimensions
25 x 16.4 x 11.2" / 63.5 x 41.7 x 28.4 cm
Weight
84 lb / 38.1 kg

EcoFlow DELTAPROEB-US Reviews

Power when you need it.

By Mikenare
Rated 5 out of 5
Date: 2025-11-27

Bought 2 generators and 2 extra batteries for my rv. Works great! Going to buy 2 more extra batteries for outages at home.

EcoFlow Delta pro extra battery

By Handy
Rated 4 out of 5
Date: 2025-06-11

I have the Delta pro and one extra battery at the moment and I'm looking to purchase a second battery. I like everything about the units except what another reviewer said, the cable to hook the extra battery up it's so short the extra batteries have to be on the two sides of the Delta pro power station. I have them in a small laundry room on a shelf and I wanted to put the extra battery on the shelf but since the cable is only 3.2 ft or meter long I can only put one battery on the shelf above the Delta pro power station. So if I want to add another battery it will have to be on the floor right next to the power station for the cable to reach. Unfortunately then my dryer door will not open more than a third. They said I could buy the 16-ft cable with the smart battery adapter which is way too long. Can't we just get a seven or eight foot cable I hear a lot of people with the same issue. I'm sure 16 ft cable plus smart battery adapter isn't cheap either. And then there's 16 feet of cable to have hanging around. That's the only reason I took one star off everything else is great but I'm in a bind hooking up the extra battery with one option, buy 16 ft cable with extra battery adapter. I called EcoFlow they have no intention of making a 8-ft cable or just one that would actually work. The ease of use is very easy but I took a star off because I had to take one off because no one thought of making a cable long enough to stack the batteries. And it's not some cord you just go in the store and buy one.

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