Perfect emergency backup for my wife's oxygen concentrator. Utility power failed 4 times in one day, scrambling to switch to a oxygen cylinder each time. Never have to rely on the power grid plus it can recharge with the included solar panels.

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.

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.

This ecoflow is clean and quiet and works great. I have a EcoFlow 2400-Watt Portable Power Station. I really like the app for my phone where I can monitor the input and out put in real time. Regarding the value - it could be a little less expensive.

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.

I found this product to be very well designed, reliable and perfect for my emergency power system case. I especially love the fact that I can remotely monitor the battery life and control the system remotely. I love how I can extend battery longevity based on car battery lithium battery or solar panels. Echo has a number of models that provide great scalability at a decent price range. I love this product. I think it’s awesome.

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.

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.

Light/portable. Set up is a little wonky. Could use some better instructions. In full light and the correct angle, output was right around 100w. This panel would be great for temporary charging of a small EF station (River or Delta), and has MC4 connectors plus an mc4 to x60 adapter.

The standby power consumption is very disappointing. Just having the DC on with no load apparently takes 10w! Otherwise I like the product.