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Customer reviews for 3400-Watt EcoFlow DELTA 2 Max Portable Power Station With X Boost Technology + 2 pcs 110W Solar Panel for
3400-Watt EcoFlow DELTA 2 Max Portable Power Station With X Boost Technology + 2 pcs 110W Solar Panel
4.8 out of 5 stars
stars181 ratings180 reviews
  1. 5 stars85% (154)
  2. 4 stars12% (22)
  3. 3 stars1% (1)
  4. 2 stars0% (0)
  5. 1 star2% (4)

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Showing 21-30 of 180 reviews
Jul 13, 2022
JohnP
5 out of 5 stars review

Verified Purchase

Excellent Product

As expected a little smaller than my 160 Watt panel I got with my generator but the two connected together will work fine. VERY impressed with Ecoflow and would highly recommend them for your back up power needs. Works so well we're considering Solar for our house.

Review from ecoflow
Helpful?57N1YK4LERJM13661605668
Nov 17, 2023
MadMouse
4 out of 5 stars review

Verified Purchase

So far so good, with one problem

I bought this and installed it into my daughter's bus. (Schoolie conversion) It is what we wanted. The only complaint that I have is the way the cable comes out the side. you cannot stack anything next to them within a foot. The wave has a nice 90 degree cable that goes between the battery and AC but the Delta 2's cable sticks about 6 inches out the side.

Review from ecoflow
Helpful?57N1YK4LERJM13661605668
Nov 22, 2023
cl01
5 out of 5 stars review

Verified Purchase

Works great, easy to store and move around

I bought this when it was on sale to have when camping to charge a Delta 2. It is very easy to setup, and worked great the one time so far so have tested it. It packs away to a nice size when I don’t need it. Charging speed was pretty quick, so even though it’s not a high wattage panel, it looks like it’s going to do just what I need.

Review from ecoflow
Helpful?57N1YK4LERJM13661605668
May 1, 2026
anonymous
1 out of 5 stars review

No power station-panels only

Only received the 2 solar panels; POWER STATION WAS NOT DELIVERED!! called customer service %26 received an AI bot that ordered a replacement. Then I received an email with instructions to return the item I did not receive!! Called customer service again %26 was finally connected to real person but call was disconnected after 30 minutes. called customer service a 3rd time %26 finally got connected to another real person who immediately put me on hold so he could "read my call log", %26 took my number in case we got disconnected; assured me he would call me back if that happened. After 24 minutes, my 3rd call was disconnected. Almost 5 hours later I'm still waiting for that call back. Sam's customer service is a joke.

Helpful?57N1YK4LERJM13661605668
reply from Ecoflow Team

We&#39;re sorry for the inconvenience you&#39;ve experienced. Please reach out to us at support&#64;ecoflow.com or call us at &#43;1 (800) 368-8604, Monday to Friday, 9 a.m. to 7 p.m. (EST). We&#39;re here to help and will do our best to resolve your issue quickly.<br /><br />To better assist you, please email us at support&#64;ecoflow.com or call us at &#43;1 (800) 368-8604, Monday to Friday, 9 a.m. – 7 p.m. (EST).

Nov 3, 2023
nuke10k
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?57N1YK4LERJM13661605668
Jul 7, 2023
Andy A.
5 out of 5 stars review

Verified Purchase

Solar Generator In, Gas/Propane Generator Out!

We have been checking out our new Delta 2 Max with add-on battery and solar panels for several days now. Very impressed with the functionality of the overall system and app. The capacity is great to get us through power outages running necessary loads sans A/C. Our gas/propane generator will now become backup to the solar backup. Hopefully, we won't have to use the loud, smelly machine in the future.

Review from ecoflow
Helpful?57N1YK4LERJM13661605668
Jul 30, 2024
MotoRandy
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?57N1YK4LERJM13661605668
Aug 7, 2023
Trish Puo
5 out of 5 stars review

Verified Purchase

Solved My Problems

I live in Texas where the power goes out regularly. I needed something to run my window unit, rolling air conditioner, refrigerator and fans this summer wholes it’s been 110 degrees. The Eco Flow Delta Pro does it all and more. I feel confident in my home now. Thank you Eco Flow.

Review from ecoflow
Helpful?57N1YK4LERJM13661605668
Mar 2, 2024
Wild Man 27524
4 out of 5 stars review

Verified Purchase

PG&E Alternative

Recently experienced nearly 24 hour power outage; my brother kept refrigerators, etc. going at his house for several days with only a two hour charge of his DELTA 2 Max unit at my house when power was restored. Long story short, I ordered the DELTA 2 Max and additional battery; of course I haven’t needed my system yet, but it’s nice to feel prepared. Shout out for the prompt deliveries of both components.

Review from ecoflow
Helpful?57N1YK4LERJM13661605668
Oct 11, 2022
Mikenc68
4 out of 5 stars review

Verified Purchase

Homeless

I use a gas generator in the morning to charge my Ecoflow River Plus. Then when the sun hits my solar panel it will keep up with most of my power needs until late afternoon when I need gas generator again. Solar panel not aimed directly at sun but I still get up to 77 watts input mid day

Review from ecoflow
Helpful?57N1YK4LERJM13661605668