Join Now
Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for 2400-Watt EcoFlow DELTA 2 Max Portable Power Station + X Boost proprietary technology for
2400-Watt EcoFlow DELTA 2 Max Portable Power Station + X Boost proprietary technology
4.8 out of 5 stars
stars
98 ratings98 reviews
  1. 5 stars85% (83)
  2. 4 stars13% (13)
  3. 3 stars1% (1)
  4. 2 stars0% (0)
  5. 1 star1% (1)

Member photos

Sort by |
Showing 11-20 of 98 reviews
Mar 8, 2024
Reviewer name: Shredder
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Delta II Max w/Smart Battery and 400W Solar Panels

I received everything and it all works great. I spent a lot of time researching different brands, options, performance, YouTube videos, etc. and I am very happy with EcoFlow. The only complaint I have is that the Delta II Max does NOT have wheels. EcoFlow sent me a canvas wagon where you can fit the generator inside but you cannot add the Smart Battery with it.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jul 16, 2023
Reviewer name: J.M.H
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Ecoflow is a powerhouse!

I have three ecoflows. Two Delta 2 Max and one Delta mini, I bought them because we have frequent power outages. They are a great option when power is out to run essentials. Performance is awesome and I intend keep adding more units to my house. These things are built like tanks.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jul 22, 2026
Reviewer name: Jason
1 out of 5 stars
1 out of 5 stars review

bad business

is not about a good product. it's also about the company that stands behind it. Ecoflow is definitely not a company you should do business with. they have no concern for the customer or would it takes to provide customer service. without going into grade detail. please trust me I would not do business with them

Helpful?3KDC90RR6AWJ13953461004
reply from Ecoflow Team

Thank you for taking the time to share your feedback. We're truly sorry to hear that your experience left you feeling disappointed. We understand that great customer service is just as important as the quality of our products, and we regret that we did not meet your expectations. We'd like the opportunity to better understand what happened and see if there's anything we can do to help. If you're willing, please contact our customer support team with your order details by calling +1 (800) 368-8604, available Monday–Friday, 9:00 AM–7:00 PM (EST), or by emailing support@ecoflow.com. You can also find additional support options through EcoFlow Support. We appreciate your feedback, as it helps us identify areas where we need to improve, and we hope to have the opportunity to make things right.

Nov 3, 2023
Reviewer name: nuke10k
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

like i but.....

I bought 2 of the pro max 2's , like them will work for my green houses during the summer but......will only run the 1500 w heater for about 2 hours. NOT ecoflow fault it's mine did not do my research heater draws 12.5 amps on full setting so 2hrs at that current is not so bad. would buy the pro max 2 again may even get the batteries for the unit.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Nov 13, 2023
Reviewer name: B n B
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

DELTA 2 MAX MEETS OUR NEEDS

We purchased the Delta 2 Max as an alternative to an overhaul of our RV's electrical system. We've used the unit a couple of days and it looks like it will be sufficient to enable us to boondock for two to three days. The case is sturdy, well made and not too heavy given the performance of the components. The app / smartphone interface is great.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jul 30, 2024
Reviewer name: MotoRandy
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Sure beats the other solutions

I used solar panels, charge controllers, AGM batteries, and inverters for YEARS when I built out another camper. I was always searching for direct sun to 'refill' my batteries. I was such a pain—a real distraction to my travels. Now, I use an Ecoflow battery generator and their 800-watt charger. Today, I installed the charger. It was very easy compared to all the old components. So, I only need to take a short drive to charge my battery generator fully. My battery generator and charger are both connected to Ecoflow's app. I can watch the progress of charging and discharging. The app is very professional and provides way more information than I need. But it's nice. The battery generator eliminates the need for solar panels, a charge controller, and an inverter. The batteries in the generator are much better quality than the old AGM batteries. I'm so happy to have made the switch. I would recommend their products 100%; I was lucky to have purchased them during Prime Days and saved a considerable amount. They provide quality products. I'm a happy camper without thinking about the charge of my batteries. Life is good.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jun 17, 2023
Reviewer name: Bigdaddyg79
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Another great eccoflow product!

I've had my delta 2 max now for 3 weeks and so far I'm loving it. It's a little more heavier than the delta 2 is at around 50 pounds vs 28 for the delta 2 but not to heavy for me to carry it around without a problem. I've used it to power various appliances around my house such as a microwave oven, a convection oven, hotplate, hairdryer, space heater and a room size air conditioner and it's handled everything like a champ! The fans are alot quieter than the delta 2 fans also. The fast charging is nice at around 10% it took a little over a hour to charge to 100%. I love the eccoflow app too! It puts everything you need to know about the unit and what it's powering at your fingertips. Overall it is a great unit with lots of awesome features and works really well for what I use it for. I am well pleased with my purchase and would recommend this product to others who are looking for a portable powerstation.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jun 26, 2023
Reviewer name: Julie RD
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Top of the line unit

I bought this one after watching review videos of different solar generators and comparing specifications. This unit was by far the best option with its lithium iron phosphate battery. I'm a beginner so I've been testing different items around my house to get comfortable with it. I'm planning to take it camping and use the solar panels. Really happy with my purchase.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Feb 11, 2024
Reviewer name: Ecoflow stuff
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Pretty Cool

I haven’t finished all of the tests but so far going really well. I ran a test to see how long my fridge would run off the battery. The battery made it 19 hours and estimated it would make it another hour. I got to 8% capacity left. Plan is to next run the battery down with the freezer. Then will recharge for the first time using my 400 watt solar panel. Figuring I may want to get a second 400 panel later. The display is great. All good information. The App is awesome for sure. Can be wherever and see progress. Glad I finally made the purchase. The sale helped push me over the line. Great addition to my power down preparations.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jan 10, 2024
Reviewer name: Moose1964
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Just what I needed

I live full time on the road and I needed 24-hour power to run my eco flow glacier cooler and charge laptop phone microwave etc I have a 400 watt solar panel from another company. I thought the ones on eco Flow looked kind of flimsy and had bad reviews. But anyway the Delta max 2 works amazing last 5 days on a charge, 5% charge to 100% in an hour and a half plugged in to AC. Also charge about 4 hours from solar panel. Very quiet hardly noticeable

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004