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: Jimmy4567
from Northern California
Gender:Male
Verified Purchase:Yes
These are simply plug and play, doubles your capacity and it takes it from there nothing to do no worries just update the firmware and let it go
Written by a customer while visiting ecoflow
Posted by: Anonymous
from Michigan
Gender:Male
Verified Purchase:Yes
Absolutely love the Ecoflow system. Everything works perfect.
Written by a customer while visiting ecoflow
Posted by: Sparky 69
from Macomb Michigan
Frequency of use:Monthly
Gender:Male
Verified Purchase:Yes
Glad i got the extra battery. Great product now the wife won't have to mess with the gas generator when im not at home.
Written by a customer while visiting ecoflow
Customer Rating
5
Must have accessory
on September 25, 2025
Posted by: grunthunter8
from Savoy, IL
Frequency of use:Daily
Gender:Male
Couldn't do without my extra batteries for my delta pros. love that they now have the new 2m flat link cable, makes setup so much easier.
Written by a customer while visiting ecoflow
Customer Rating
4
Works as promised, but integration is unpolished
on April 29, 2022
Posted by: Scott H
from Washington State
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
The extra battery is a great way to expand the capacity of the system, and it does it's job well. However, the way the extra battery is presented in the app is bizarre. The connecting cable is extremely stiff and clunky.
I would recommend this to a friend!
Written by a customer while visiting ecoflow
Customer Rating
5
Most Advanced Generator in its Class
on May 18, 2022
Posted by: EnjoyTheOutdoors
Frequency of use:Monthly
Gender:Male
I own this Delta Pro as well as three other Ecoflow products. I also own other brands including Jackery. In my opinion the Delta Pro wins out in multiple fronts - including the battery chemistry used, cost per watt hour, and the supporting app and features which can be customized within. Among these the charge rate was my favorite aspect to control. I picked this up for power outages in my area and so far it’s served that purpose well. It’s more power than I actually need but it’s nice to not worry about “whether it will work” when powering any of my appliances. Build quality is very good and from the various tear down videos I’ve seen the consensus seems to support that this is a well built and well engineered product. I also picked up the cover for it which is visible in the picture. It also fits the Pro well and allows operation without removing it and stores the ac adapter. I’ll also mention that Ecoflow seems in general to keep pushing the market forward with their products which is a great thing. Solid product and good purchase.
I would recommend this to a friend!
Written by a customer while visiting ecoflow
Customer Rating
4
Terrific Battery with a very short chord....
on December 4, 2022
Posted by: KenH
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
Battery works as advertised
Ive got 3. The only complaint is the cable that conects to the Delta Pro is absurdly short and the add on batteries must be located alongside the Generator. You can't put the battery below the generator. I was hoping to put my generators on an upper shelf and the generators below. Cannot be done with the short cables.
Ive got 3. The only complaint is the cable that conects to the Delta Pro is absurdly short and the add on batteries must be located alongside the Generator. You can't put the battery below the generator. I was hoping to put my generators on an upper shelf and the generators below. Cannot be done with the short cables.
I would recommend this to a friend!
Written by a customer while visiting ecoflow
Posted by: dackj
from Texas
Frequency of use:Monthly
Gender:Male
Verified Purchase:Yes
Battery works great. I as able to dry camp in the RV for a couple of days at a time without needing to recharge.
I would recommend this to a friend!
Written by a customer while visiting ecoflow