Customer reviews from ecoflow
EcoFlow - DELTA Pro 3600Wh Smart Extra Battery
Average customer rating
4.8
(78 Reviews)
Rating breakdown 78 reviews
5 Stars
64
4 Stars
13
3 Stars
1
2 Stars
0
1 Star
0
100%of customers recommend this product.
(
19 out of
19)
Customer Reviews for EcoFlow - DELTA Pro 3600Wh Smart Extra Battery
Customer Rating
4
EcoFlow Delta pro extra battery
on June 11, 2025
Posted by: Handy
from Fort Myers Florida
Gender:Male
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.
Written by a customer while visiting ecoflow
Customer Rating
4
Xtra power cable options too short but quite good
on November 6, 2023
Posted by: MJM.
Gender:Male
Verified Purchase:Yes
It’s a nice functional goodly designed item. Easy to move about- short cable
Written by a customer while visiting ecoflow
Posted by: TheNextDecade
from Raleigh, NC
Gender:Male
Verified Purchase:Yes
Very happy with the extra battery. Thanks to the extra battery, when the power goes out in our neighborhood, I wont have to worry about a thing. I can just swap to my ecoflow setup. With the extra battery and solar panel, everything recharges really fast in the day. Super excited to have the power go out again, as odd as it sounds!! Any excuse to use my Ecoflow!!
Written by a customer while visiting ecoflow
Posted by: PowertecADL
from Minnesota
Gender:Male
Verified Purchase:Yes
Are use the EcoFlow, Delta pro and the extra battery as a source of power inside my motorhome, which is awesome because it allows me to use all of the higher powered appliances without being hooked up to any shore power or needing to run my gas generator
Written by a customer while visiting ecoflow
Posted by: Power
from Florida
Gender:Male
Verified Purchase:Yes
The battery and case are in like new condition. Powers a Fully offgrid capable setup. Excited to put them to use. Delta pro + Delta Pro Backup + Duel Fuel Smart Generator. 1600w solar panels.
Written by a customer while visiting ecoflow
Posted by: Anonymous
from Bloomington, IN
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
I purchased the DELTA Pro Smart Extra Battery a few weeks ago, hooked it up to the existing DELTA Pro, charged it up and waited. I did not have to wait for long. A few nights ago it was 2 degrees out when the power died up and down the street. I unplugged my furnace from line power, plugged in the Delta Pro pair, and went back to bed toasty-warm. What a great relief to know that Ecoflow has my back when the power dies again.
Written by a customer while visiting ecoflow
Customer Rating
5
Delta Pro Smart Extra Battery - It makes sense!
on August 3, 2022
Posted by: Byron C.
from Central Florida Area
Gender:Male
Verified Purchase:Yes
Thanks EcoFlow for sending the Delta Pro Smart Extra Battery. I'm now more prepared for any power outages we may experience in our area.
I would recommend this to a friend!
Written by a customer while visiting ecoflow
Posted by: HJNHJN
Verified Purchase:Yes
Battery integrates well with other ECOFLOW products
Written by a customer while visiting ecoflow