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Verified Ratings (34)

4.8/5
4.8 out of 5

34 verified ratings

Comments from Verified Purchases(13)

5 out of 5

Good additional battery

I bought the additional battery to go with my Delta 2 Max and four solar panels. Setting up is very straight forward and the connect cable is easy to use. The Delta 2 Max instantly recognizes the battery and it even shows on the Eco Flow app. I connected both to my solar panels and charged them to 100% as I was curious to see how they would balance out as the new battery arrived at 60% charge and my Delta 2 Max was at 75%. Charging was quick from my solar panels as the Delta 2 Max shunted much of the power to the extra battery until they were both at the same charge level and then the load evened out. I think it’s a great addition as now I can generate and store 4 KW hours of power. My plan is to add a second smart battery so as to max out at 6 KW hours. The smart battery weighs almost 10 pounds less than the Delta 2 Max and is easy to move around. It’s size allows for easy storage in a on top of the D2 Max.

29-12-2025by Don Uzobuife
Verified Purchase
4 out of 5

Good

Product is good

02-09-2025by Oghenetejiri Iboyi
Verified Purchase
5 out of 5

I love it

One of the best solar smart battery ???? out there, you can never go wrong with Ecoflow products.

15-05-2025by Churchill
Verified Purchase
5 out of 5

Ecoflow is the best,working perfectly for my home

Excellent

22-04-2025by Olasunkanmi Akinmade Ayinde
Verified Purchase
5 out of 5

excellent product

Delta 2 max extra battery is really smart and works perfectly well

17-04-2025by Kelvin
Verified Purchase
5 out of 5

I LIKE IT

It solved my power issues

11-04-2025by Johnson
Verified Purchase
5 out of 5

Very good investment

Good investment

07-04-2025by Oteri
Verified Purchase
5 out of 5

best battery

Enjoy the way it carries all my loads

03-03-2025by Joshua
Verified Purchase
1 out of 5

Charging problems

Extra battery suddenly stopped charging

14-02-2025by EA
Verified Purchase
5 out of 5

works well with my delta 2

It works well with my delta 2. And last very long. Definitely a good buy.

16-12-2024by Ifeanyi
Verified Purchase
12