EF ECOFLOWSolar Generators, DELTA 2 Portable Power Station with 2PCS 100W 12V Solar Panels, 1024Wh LFP Battery, Fast Charging, Power Station for Home Backup, Camping&RVs

I wish I had not waited so long. I originally purchased this unit for off-grid amateur radio operations. It works very well for that purpose. But recent storm related outages allowed this unit to really demonstrate its capabilities. The unit paid for itself when it kept my fridge and freezer running during a recent outage. This unit is reasonably light, very portable, can handle a variety of tasks (charging cell phones, computers, running coffee makers, fridges, and freezers, and even driving my tankless water heater. The first day I recharged it using my gasoline generator. It recharged quickly. The next day I was able to deploy the solar panels (the panels can recharge the system in a couple of hours in very good conditions). At one point, the panels were actually recharging the unit while powering a fridge. Impressive. I love that charge-through capability. I wish the cables for the solar panel connections were longer. And I wish an anchoring system for the solar panels was provided (the light panels are great, but are very unstable in windy conditions). While I still have and use gasoline generators, this is my go-to generator for all kinds of projects. I'm pleased I purchased it and am planning to buy another one this year.

This purchase was to add to my solar generators and it is working great. The color panels came a day after the generator, but all is good. I’m prepared for the next outage with great equipment!

This review does not include the solar panels as they require professional installation (rigid, not portable), so i have just been using the generator, and so far very pleased: setting up with the app was very easy, including firmware update, charging with AC is fast although can be a little noisy due to the fans, but still bearable. Will update review once I have installed the panels.

Initially after receiving the item it charged flawlessly and the USB port side worked great. The only problem I had was with the AC plug in power button. I tried several presses and long presses but could not get the button to light up. I posted a negative review and the maker contacted me to resolve the issue. I went back to the unit and FINALLY got the AC power button to come on by pressing it about 5 times in a row. It seems to works as advertised now but the button has been my only issue. I still have to push it multiple times to get it to turn on. It seems to shut off after one or two pushes. I would give the product 5 stars if it were not for the AC power button issue. Kudos to the seller for attempting to resolve the issue on their own.

Easy set up I filed the simple instructions got the app hooked up, ready to go

The 220w solar panels often produce even more watts than advertised. Not often you actually get what the product is rated. These do. So good I bought 2 more. It's easy to expand battery capacity and with a little ingenuity and research it can be expanded even more. Would recommend for others just getting into solar.

I purchased this and had it plugged into a normal wall outlet. First attempt at using it, (after 30 days) would not charge anything and would not stay on when unplugged. TRASH. So, I downloaded the app, spent 2 days with EcoFLow Tech support trying to get the firmware to "remote update," which required me to get the delta 2 on a network with my phone to push the update manually, and after this, it still did not work. Soo, reached out to Ecoflow support a 3rd time, was told after 30 days, they can't give a full refund because of 'depreciation' and I would be responsible for shipping costs. They offered a repair, which wasn't guaranteed, and if it failed, they would replace it with a refurbished one. And they offered just swapping for a refurbished one also. I have phots of the serial no.. screen shot from their customer service live chat as proof of this, and pending an email for prepaid return shipping at this time. We'll see if they can repair it and send it back, or compensate more appropriately. My thought is, if they can see the device online and push firmware updates to it, they should be able to see its up-time also, and can verify that the delta 2 was not even used, and that it didn't 'depreciate' by sitting on tile charging before discovering it was just draining power for no reason. I'll update this post if anything changes, purchased Nov 2024, reviewed May 2025.

This unit is so powerful, charged so fast and the best part is Ecoflow stands behind their products! They will help you with their best!