Have had this for about a month and a half now, charge is extremely quick when plugged into AC. Charges decently fast when hooked up to solar, I have a combined 720 watt input. So far everything seems to be operating correctly, I did have one issue where it dropped its Wi-Fi connection and I kind of had an issue getting it reestablished. I reached out the service and they gave me some ideas of how to get it to work again, I got it to work again. I do have two extra smart batteries attached to this Delta 2 Max. With everything hooked up it does take quite some time to charge on solar. Which is to be expected though it has to feel quite a lot of power reserve. This will come in handy when the power goes out and I need to maintain critical items in my home. All in all I think it's probably a great product, only time will tell though.

Bought the Wave 3 and Delta Max 2 very impressed with the quality of the product. We had a bit of a snag with logistics. So I reached out to EcoFlow and within a couple of hours the issue was resolved. The product was delivered the next morning. Should make for a great addition to the family camping trip this weekend!!!! 5 Stars!!!!!!!

I had been researching portable power systems for some time. My specific use case was for extended off-grid camping, with the ability to charge from solar or AC (when available) I also wanted to be able to use it in a limited home-backup role for powering critical items (refrigerator, freezer, etc) during power outages at home. The Delta 2 Max ticked all the boxes. With the ability to expand up to 6KWH storage with the extra battery packs, it could serve this secondary role very well. Thus far, very please with the purchase, and support from a very active user community. Two thumbs up!

I bought the new Delta Max 2 last week 7/11/2023, and it is incredible it is running my lights, internet connection, security cameras, induction stove, hair dryer, it will run my window unit ac refrigerator pretty much anything you throw at it. I have five 100 watt solar panels right now I will be getting five more to keep it charged up while I am working. It charges up extremely fast with the AC outlet. I've been watching Eco flow when they first came out when they came out with Delta Max 2 I just had to get it. So if you're thinking about buying one this would be the one to get thanks for everything guys!

I purchased the Delta 2 Max as a bundle with two solar panels included. Unfortunately, the solar to XT60 cables to connect the panels to the battery were not included in my shipment. I had to wait for those cables to arrive before being able to charge the battery. I also purchased a Wave 2 air conditioner to be powered by this battery. I did not know that connecting the Wave 2 to the Delta 2 required a proprietary cable. That cable was out of stock on the EcoFlow site, but fortunately I was able to find one on another site. Once I had all the necessary cables, I was genuinely pleased with the performance of the EcoFlow solar panels and all the charging information available in the EcoFlow app on my phone. In addition to the EcoFlow panels, I had two solar panels purchased from a competitor on the second solar input (that also required an Andersen to XT60 cable, but I was prepared for that). This greatly sped up the process of getting the battery to 100%. With a fully charged battery and all the necessary cables packed into our camper van, my wife and I were able to test the battery and AC combination. My hope was that the Delta 2 Max would be able to power the AC for two nights in Eco Mode without a recharge, but at the end of the first night, only 20% of the battery capacity was left. Admittedly, it was very hot and humid (80+ degrees at night with 90%+ humidity), and I think under less harsh conditions my two night goal can be achieved. The Delta 2 battery has enough power outlets to run everything I can fit in my van. I look forward to having this battery along on my camping trips for the next several years. If I do have to up the capacity, it's easy enough to add an extra battery. I just have to remember to order the proprietary cable to go with it.

I am a big proponent of EcoFlow products. Last year I purchased twp Delta Pros, a spare battery for them, the smart panel and smart hub. I planned on taking one of the Pros with me while camping, but instead of lugging over a 100 pond unit all over the place, I saw that EcoFlow now produces all the power I need and the unit weighs half of the Delta Pro so I purchased one: the Delta 2 Max. I have a teardrop camper and I need to power a 5000BTU air conditioner, a 12V fridge/freezer a fantastic fan, etc. With the option of using solar panels or charging from shore power, the Delta 2 Max can be recharged in no time. This is a must have for campers and preppers alike.

I purchased this combination about a year ago and feel like I need to write a review after using these products. Prior to upgrading to this setup; I ran two Jackery (250w and 1000w) units for my power needs while camping. Switching to the Delta 2 setup minimized the amount of equipment I needed. It also provided plenty of power to run my fridge and charge any other electronics I needed charging. However, this is not the reason that prompted a review. The Delta 2 with the 800w Alternator Charger earned its worth when it got me out of an otherwise expensive situation. I was about an hour away from home running trails when I happen to damage my alternator. Because of this; I was slowly draining my battery and feared I’d have to pay for a costly tow. I had happened to leave my Delta 2 in the truck that weekend and it came in clutch. It was fully charged due to it being hooked up to the Alternator Charger. I was able to reverse the charge and run the truck off the Delta 2 for an hour until I made it home. I charged the Delta 2 every night to be able to drive to work and back until I was able to get the alternator replaced. Needless to say, the Delta + 800w Alternator Charger earned its worth. I highly recommend this setup to the point that I don’t need to run a dual battery setup since I have this to rely on. If you ask me, this combination is worth the money if you spend any time off grid or off the beaten path.

I just purchased the EcoFlow Delta 2 Max along with the 220W BiFacial Solar panel and took it to our National event for R/C Racing in Rome, NY this past weekend. Me and my buddy charged our 2S and 4S batteries at 10Amps throughout the 4 day event and only required to use A/C power to charge the unit 1 time (due to cloudy day) over the 4 day event. The Delta 2 Max kept up with 2 separate chargers, soldering irons, and phone charging each day! Plus it was quiet and sat on our table. Super pleased with this product!

I had just received my Delta 2 Max (D2M) a week before we had an unexpected and unexplained power outage. It was right at dinner time as food was going into the oven. Fortunately I had the D2M at the ready and routed a 20-amp power cord from the D2M to my transfer switch. We were able to run the 1700 watt toaster oven for approximately 45 minutes along with lights, computer, a refrigerator, and a freezer. This drained the battery in the D2M to about 30%. I had also recently purchased the EcoFlow Dual Fuel Smart Generator (DFSG) and hooked it up to the D2M to give it a test, too. It came on right at the 30% mark I had set in the EcoFlow app. It took about an hour to charge the battery with propane. The generator then shut itself off automatically when the battery was fully charged. Dinner was served and power eventually came back on a few hours later. Both the D2M and the DFSG performed as expected with no problems. I highly recommend this set up. Before I would have to run my gasoline generator continuously during an outage. Even though it has an ECO mode, it would still burn 3-4 gallons per day. With the DFSG and a Smart Extra Battery (SEB) I will likely only need to run the generator 2-3 hours per day, and that can be reduced with solar panels. NOTE: I prepared for this EcoFlow setup by drilling a hole in my exterior wall. This allows me to keep the D2M and SEB inside but connect them to the generator, transfer switch, and solar panels outside. The PVC conduit has caps when not in use.

Best portable generator. Very light weight and easy to use. We use our delta 2 max in camping trip, overlanding and many other occasions. There are several things I love about Ecoflow: 1. The packaging that the items are delivered in is incredibly durable, no cheap boxes or cushioning. Overall,Ecoflow manufactures the best products of this kind ever and keeps coming out with great new items to consider.