I bought this unit about a year ago and couldn't be any happier with any purchase. My wife is on oxygen 24/7 and this year the power company is replacing all the power poles in town. Her oxygen concentrator will put out 4 liters continuously for 9 hours on a full charge. It will charge from empty to full in about 85 minutes. I've ran this Delta Max for about 140 hours since purchase and still thrilled over this unit. Piece of mind.

I have only put this through a four hour test, but it seemed to perform exactly as advertised.

We bought one of these to replace our bulky, noisy gas generator to power our new Infrared Sauna SILENTLY and OFF GRID! While it only works for an hour that is ample time for us to use the Sauna, then recharge the Ecoflow with pass through solar energy from the solar panels on our house.

I'm very impressed with this Solar Generator, its very easy to get started with and it charges very fast. Right now I'm just charging with the A/C wall outlet, but plan to get some solar panels in the spring before we head out to Arches National Park to camp in our RV. I really like the ECOFlow 400W foldable panel, but they are super expensive. The App on your phone is also very nice, and I can track whats going on with the EcoFlow without being next to it. I might also purchase the extra battery for this next Spring as well.

I live in an area with frequent power outages, so I have purchased multiple EcoFlow power stations in different sizes for to run different appliances. The units are all great, but the Delta Max is my favorite and is what I would recommend to someone who wanted only one unit because it has the best combination of price, power storage, size and weight.

This product has outdone my expectations.I wanted one for a very long time. The research i’ve done was straight up. You can’t go wrong if you decide to purchase this. i can’t wait to save up for the extra battery. i’m almost excited waiting for the power to go out

I've been testing this thing out since I bought it, and I'm really impressed. We have a few outages a year and I'm tired of being dead in the water when they happen and worried about food spoiling. I've ran our whole entertainment system for several hours, and plugged in the fridge which appears like it'll stay powered by itself for around 20 hours. This gives me peace of mind that we'll have juice the next time the power goes out. Happy with the purchase!

I ordered this product at the end of June 24, 2024. Its was on a great sale. Its July 15 and am still waiting. Tracking says that it in shipping but have not received why it is taking so long. After reading the review with one star, I am nervous that something that I was going to get for my retirement will be lost in the shuffle and I will be out $1031. I dont want the money; I want the power supply! Somebody is going to get called in to small claims court and GET a whole bunch of BAD PRESS!

Ordered from Sam’s on line. Got confirmation of order on line with Fed x tracking #. Made at least 5 calls to Sam’s about order. They charged to my credit card in 4 days and never shipped item. Tracking at Fed X shows they never received to ship out. Trying to get my $1,000.00 back. Sam’s said they can’ help because it comes from supplier they paid.

Bought 3 unit thinking from reading reviews and all that these Ecoflow units were Ecoflow Delta 2 Max. But no, after re eiving them they all are Ecoflow Delta 2000. The old switcheroo. My fail I thought Sam's was different, Not. Read the specs