Customer reviews from ecoflow
EcoFlow - 400W Foldable Solar Panel - Black
Average customer rating
4.8
(66 Reviews)
Rating breakdown 66 reviews
5 Stars
51
4 Stars
14
3 Stars
1
2 Stars
0
1 Star
0
96%of customers recommend this product.
(
25 out of
26)
Customer Reviews for EcoFlow - 400W Foldable Solar Panel - Black
Posted by: TheNextDecade
from Raleigh, NC
Gender:Male
Verified Purchase:Yes
I wanted to be sure I had more than enough power going into my Delta Pro and Extra Pro Battery, especially if I am on the move or need to power my 3D printers for an outdoor event. Leaving the panel out in prime sunlight made it charge the batteries as I was 3D Printing. This means I was 3D Printing with ZERO CARBON EMISION! That's amazing!! I'm seriously considering making my whole business run on ECOFLOW Batteries and Solar Panels from this one experience alone.
Written by a customer while visiting ecoflow
Customer Rating
4
More information on the website
on January 10, 2024
Posted by: Eric68
from Dallas, TX
Gender:Male
I have a Delta MAX and the River Plus and you cannot charge the River Plus with the 400W solar panels. This information needs to be explained on the website. Either you have to charge it with the Delta MAX or buy a lower wattage solar panel to charge it. That's ridiculous!
Written by a customer while visiting ecoflow
Posted by: TomHIowa
from Midwest
Gender:Male
Verified Purchase:Yes
Purchased this unit (DP) to act as partial backup to home using the EF 400W portable panels. The initial base line testing has been completed and the unit performed well. Will have final verdict after a few more weekend tests.
The solar panels seem well built. The dual purpose kickstand is a little tough to use and does not show good value unless conditions are ideal (which is almost never the case)
The solar panels seem well built. The dual purpose kickstand is a little tough to use and does not show good value unless conditions are ideal (which is almost never the case)
Written by a customer while visiting ecoflow
Posted by: usmc932
from Michigan
Frequency of use:Daily
Gender:Male
Verified Purchase:Yes
We've had this 400 watt panel for a few weeks now and love it. We previously had two of the 220 wats bifacial panels and loved them but this one has been a game changer for our charging ability.
Written by a customer while visiting ecoflow
Customer Rating
5
EcoFlow is one of the very best values in industry
on December 9, 2024
Posted by: Guvner
from Southern Colorado.
Frequency of use:Daily
Gender:Male
Purchased an EcoFlow ultra extra battery with inverter And several different EcoFlow solar panels, including the 400 W with a gimpy stand. One piece of advice if you’re getting into Solar is unless you’re selling XS back to the electric provider. It’s not going to be cost-effective. One way to help it be more cost-effective is to never pay full price for solar equipment. Wait till Black Friday wait till Christmas wait till summer wait till Easter Memorial Day Labor Day check on all the major holidays and there will be major discounts. The 400 W panel advertised here is 42% off. If you built a 90 kW EcoFlow system and paid full price well they have a 45K system in their refurbished products, which I recommend highly for 20 grand and that doesn’t include your panels. It just includes five batteries for each column and inverter. Any any and all additional upgrades such as the smart two home panel and iPhone iPad display controller or extra. Like I said wait till they’re on sale. I’ve caught some items on sale for 60 to 70% off. And it’s OK to mix equipment if you can hook them together and link them you can’t tell the difference in quality. A friend of mine built a 150 kW system in my development and I’m not sure he has two of the same of anything.
Written by a customer while visiting ecoflow
Customer Rating
5
Good product for portable solar power uses.
on July 28, 2025
Posted by: Amature Radio Host
from Utah
Gender:Male
Performs well and as expected. It has a good conversion rate/performance. I have good sun exposure most days of the year and can recharge in 4-5 hours when 2/3's expended. The panel array is heavy and awkward for single person manipulation. The panel array gets warm as would be expected in the sunlight and so if laid out over vegetation that you care about, (lawn, etc) it will burn the vegetation - I have had the same issue with a generic tarp on the lawn. So I purchased an adjustable stand that folds up and that solves a lot of the issues.
Written by a customer while visiting ecoflow
Customer Rating
5
Excellent Foldable Solar Panels & customer support
on April 13, 2022
Posted by: Jmack
from California
Frequency of use:Monthly
Gender:Male
Verified Purchase:Yes
I am very impressed with the Echoflow foldable solar panels. Well made, meets or exceed all specs. I like that the panels are built for the Echflo pro product and I don't have to gerry-rig 3rd party solutions..Be aware that they are soldi built which makes them heavier than other similar panels.....just goes with the territory if you want quality..........In-addition.....I am always impressed with the customer support EchoFlow provides....I know I can always get an answer to my questions either through customer support line or the EcoFlow Delta Series Group, face book page ..I highly recommend all of the Echflow product and anxiously waiting for new products that can augment my home power needs.....
thank you very much!
Written by a customer while visiting ecoflow
Posted by: jimsparkman
from Bethlehem, PA
Frequency of use:Monthly
Gender:Male
Verified Purchase:Yes
Excellent Solar Panel, very good power output... when I tested, I was getting about 350 watts out of each panel, all without even trying hard to get the angle right. Would definitely recommend.
I would recommend this to a friend!
Written by a customer while visiting ecoflow