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
Posted by: Anonymous
from SJC,Ca
Frequency of use:Monthly
Gender:Male
Verified Purchase:Yes
Great add-on for the generator. Can get me through the nite with power.
Written by a customer while visiting ecoflow
Posted by: RussTen
from Oregon
Gender:Male
Verified Purchase:Yes
I bought this as a second battery for my delta pro only cycled twice so far so good
Written by a customer while visiting ecoflow
Posted by: Daniel N
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
Great products that doubles the capacity of my Delta Pro.
Written by a customer while visiting ecoflow
Posted by: grannygeek
from Alabama
Frequency of use:Daily
Gender:Female
Verified Purchase:Yes
If the cable connecting to the Delta Pro had been longer I would have given this EB a five star. But I had planned on putting the EB on the shelf below the DP and that was almost impossible. The only way I could do it was to effectively put the DP on top of the EB with a wire shelf squeezed in between them.
Written by a customer while visiting ecoflow
Posted by: D Rand
Verified Purchase:Yes
We have been using 2 Delta Pro and had an extra battery for each. As we Solar powered those, we realized we needed an additional battery. We are thrilled with performance and ease of use. We use them continuously and have reduced our power bill to 1/3 of what it was a year ago.
Written by a customer while visiting ecoflow
Customer Rating
5
on November 11, 2025
Posted by: Mio14
from Michigan
Frequency of use:Monthly
Gender:Male
I am totally off grid 2800 square-foot house after the house is warmed up, Eco Flo, pro extra battery I can run one complete day, the furnace and Full size fridge, lights Fireplace blower and use about 50%. You don’t want to take it down below that because it’s gonna take about four hours to charge it. I have another set Eco Flo pro an extra battery. that I use while the first battery is charging effectively, I could take both batteries down to 20% and live for four days with no charging excellent product remember, you don’t wanna get the system too big it’s gonna take too long to charge you from a generator.
Written by a customer while visiting ecoflow