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EcoFlow Delta Solar Power Stations: EcoFlow Dleta, Delta Pro, Max, and Mini Power Stations

Delta is EcoFlow’s line-up of large solar power stations. Including the original 1260Wh Delta power station, the series is available in four variants. The massive and highly modular Delta Pro is a famous member of the family.

Here, we would like to have a look at all the variants of Delta in our take on EcoFlow Delta solar power stations.

EcoFlow launched the first model in the Delta series back in 2019. That was a mid-range variant with a battery of 1260Wh and an inverter of 1800 watts.

Since then, the vendor has added a few more models to the portfolio. They include Delta Pro, Delta Max, and Delta Mini. All are amazing products of the kind with specific features and capacities.

We would like to explore each of the EcoFlow Delta power stations in this article. So, it would be nice for you to have a clear idea of the machines before choosing the right one.


EcoFlow Delta Pro

EcoFlow Delta Pro Solar Power Station


  • 3.6-25kWh Portable Home Battery Ecosystem.
  • Huge 3600-7200W Inverter with Five AC Outlets.
  • Expandable and Modular Power Station.
  • 1800W AC and 1200W Solar Charging Options.
  • Price: $3599.

EcoFlow Delta Max


  • 2016Wh Expandable Portable Power Station.
  • 2400W Inverter with 3600W X-Boost Power.
  • 800W Solar and 1800W AC Charging Inputs.
  • Price: $1899.

EcoFlow Delta


  • 1260Wh Mid-Size Portable Power Station.
  • 1800W Inverter with 3300W X-Boost Power.
  • 400W Solar and 1200W X-Stream AC Charging Inputs.
  • Price: $1199. 

EcoFlow Delta Mini

EcoFlow Delta Mini Image


  • 882Wh Compact Solar Power Station.
  • 1400W/2100W Inverter with Five AC Sockets.
  • 300W 11–75V DC 10A Max Solar Charging Input.
  • Price: $999 

EcoFlow Delta Solar Generator

EcoFlow Delta is a powerful and safe portable backup system for emergency power. When you set out for a recreational outing or an adventure trip, you can keep a fully charged Delta in your RV, boat, or van for a lot of emergency power.

Really, it will give a headstart for your adventures, and once Delta starts to run out, you can top it up with a solar array. Thanks to its 400W solar input, it can be fully charged in four to five hours under a bright sun.

It is one of the fastest charging power stations on the market. An advanced MPPT controller is inside for fast solar charging.

Meanwhile, connected to a wall AC outlet, the EcoFlow Delta solar generator will take only two hours for a full recharge. The built-in X-Stream charging technology is what makes it possible. Check out its latest price below.


The monster Delta power station integrates a 1800W pure sine wave inverter. That can surge at 3300W to support most of your large and small appliances like TVs, fridges, ovens, CPAPs, power tools, and more.

It highlights as many as six standard AC outlets among its total of 13 different charging options.

They include two USB 12W outlets, two 28W fast-charging USB outlets, and two 60W USB-C Power Delivery ports.

A 12V DC carport is also there to take the total count to 13 charging points. Well, you can use all the outlets simultaneously to power up or charge a variety of your electrical devices off the grid.

Compatible Solar Charger

The maximum solar input the EcoFlow Delta solar generator supports is up to 400 watts. EcoFlow features its own solar chargers for its power stations. Its 110W folding solar charger is what the brand recommends for Delta.

This is a four-fold, highly efficient mono charger with an output of 110 watts.

With suitable connectors, the EcoFlow solar panel is compatible with other third-party solar power stations also.

For better portability, the EcoFlow solar charger comes with a durable carrying pouch. So, you can fold it down into a small unit after use and fit it in the pouch for easy moving on your trips.


Well, the solar charger features a rubber carrying handle and a flexible kickstand. The kickstand makes it easy for you to place the solar charger anywhere at an angle from 0 to 180 degrees.

The result is that you can utilize the most out of a day’s sunlight to juice up your power station or other devices.

Made for outdoor and emergency use, the charger is crafted with advanced waterproof and dust-proof features. So, you can take it to all rough outdoor conditions with no worry. It has an amazingly lightweight profile at 8.8 lbs and a folded size of just 23.2 x 20.2 x 0.8 inches.

Notable Features

  • Powerful 1260Wh Solar Power Station. 
  • 1800-Watt Inverter with Six AC Sockets.
  • X-Stream Technology for Fast Recharging.
  • Built-in MPPT for Faster Solar Charging.
  • 13 Charging Points for Multiple Electrical Devices. 
  • Highly Durable and Strong with a Comfy Handle.
  • Pretty Large Display for Real-Time Information.

Why Should You Buy

1. More Power Without Gasoline

As a pretty powerful battery power generator, Delta is even able to replace a gasoline power generator. Of course, gas generators are costly, noisy, and smokey and so are severely disastrous to nature. It is when you get a very lightweight and compact eco-friendly power station with Delta.

2. X-Stream Fast Charging Technology. 

EcoFlow Delta solar generator ensures quick charging via both a wall outlet and a solar panel. The brand’s patented X-Stream charging technology helps recharge it from a wall outlet from 0 to 80% in just an hour. Meanwhile, with a solar panel, you can recharge it in around four hours under the sun.

3. Safe for Use Indoor Applications 

Of course, being a battery-powered generator, the Delta works safely indoors. A gas generator emits fatal carbon monoxide, making it never suitable for indoors. Meanwhile, during a blackout or an emergency, you can safely use the EcoFlow Delta generator indoors and enjoy unlimited off-grid solar power.

4. Perfect for Outdoor Enthusiasts

Like all similar products, EcoFlow Delta solar generator is going to be a great companion for outdoorsmen. You can take the lightweight power station anywhere on the move. And use to power up your electronics off-the-grid with no limit if you have it connected to a solar charger.

5. Large and Informative Display

Above all, EcoFlow Delta sports a pretty large and informative display. It can clearly show all information regarding its operation. See, for example, when getting charged, it can show the status and time for full charge quite clearly. At the same time, it shows the discharge rate as you consume the power from it.

EcoFlow Delta Portable Battery Generator

EcoFlow Delta Vs Goal Zero Yeti 1500X

Goal Zero is absolutely a trendsetter in the portable power market. For over a decade, it has been selling an award-winning line of Yeti power stations. Of the latest Yeti series, Yeti 1500X seems to be almost the nearest rival to EcoFlow’s Delta.

Yeti 1500X, as its name implies, is more powerful compared to Delta. However, it is one of the best-seller models in the segment of mid-range power stations. Hence, we would love to pit Delta against a Yeti 1500X.

So, it will be much helpful for a buyer to get through a comparison of the devices before making a buying decision.

Specs and Features Comparison

As you see, Yeti 1500X outplays Delta in both output and storage capacity. Delta is a 1260Wh power station with a 350Ah @ 3.7V battery. It is when its Yeti rival features a 1516Wh 140.4Ah @10.8V Li-ion NMC battery pack.

When it comes to the power inverter, Yeti 1500X again has an edge. Instead of Delta’s 1800W inverter, Yeti comes with the brand’s famous 2000-watt powerful inverter that can surge at 3500 watts.

But Goal Zero has given only two AC sockets (120V), whereas Delta has got six AC outlets. Check out Yeti 1500X below.


Though less powerful than Yeti, Delta has more charging points, including six AC sockets, as said above.

There are also six USB outlets and one 12V carport. The USB ports include two each of USB-A 2.4A/12W ports, USB 3.0 28W Fast-Charge ports, and Type-C 60W PD ports.

The Yeti has only single units of Type-C 60W PD port and USB 3.0 18W Quick Charge port each, in addition to two USB 2.4A ports.

Meanwhile, it highlights more regulated DC sockets, including a 12V/13A, 160W (max)  carport. The other options are a 12V high-power 30A (360W max) unit and a 12V 6 mm 10A (120W max) unit.

Delta is extremely lightweight and small in size compared to the Yeti. It is only a 30.9-lbs device with a size of 15.7 x 8.3 x 10.6 in. That is how you get it more portable and compact than Yeti 1500X, which has a size of 19 x 14 x 14 in and its weight goes 43 lbs.

What to Buy

Delta is less powerful, and it has a smaller battery pack than its Yeti rival.

But you get a more lightweight device with some amazing features like faster solar and AC charging. Goal Zero is a more reliable brand, but EcoFlow is not also bad as it has recently made a great impact on the market.

They are two different products. Delta actually falls in between Goal Zero’s Yeti 1000X and 1500X in features and specs. However, Delta is a big threat to the entire Goal Zero mid-range power stations with its stylish and elegant design, better and efficient charging performance, and lightweight profile.

EcoFlow Delta Vs River Pro

River Pro is the top-end variant of the EcoFlow River solar power stations.

EcoFlow launched the River power stations after the successful Kickstarter release of Delta. Here, we would like to have a small comparison of Delta against River Pro to help you find the best device for your requirements.

River Pro is basically a 720Wh power station with a modular feature. So, in its basic form, River Pro has only half of Delta’s storage capacity. But using an Extra Battery, it can be expanded to 1440Wh, which can obviously make it more powerful than a Delta.

However, River Pro has only a 600W inverter with a surge of 1200 watts and three AC sockets. Though it can power big appliances up to 1800 watts using its its X-Boost mode, Delta basically has a pretty bigger 1800W inverter.



River Pro is a compact power station. It actually appears in a segment between the mid-range and compact power stations. Its main competitors in the segment look to be Anker PowerHouse II 800 and Bluetti EB70.

Check out our comparison of River Pro against its competitors here.

One of the key features of River Pro is its fast charging from an AC socket. Thanks to the brand’s X-Stream charging technology, it will take only below two hours for charging from zero to 80% from a wall socket.

Solar charging is also faster with the device. It has a solar input voltage of 200W 10-25Vdc 12A (Max), with which you can charge it in below five hours by a pair of EcoFlwo 110W solar panels under optimal lighting conditions.

Some of the device’s charging outlets include two USB-A 2.4A ports, one USB-C 100W PD port, one USB-A 28W Fast-Charge port, and a 13.6V DC carport with 136W (max).

It has a weight of just 16.8 lbs and it is very compact with a size of 11.4 x 7.1 x 9.3 in. So, you get an amazing alternative to Delta at a budget price. It carries a price that is half of the Delta’s.

Final Thoughts

That has been our take on the EcoFlow Delta solar generator. We have covered all the aspects of EcoFlow’s famous mid-range solar power station. Since its release two years back, it has been a hot seller on the market. If you are looking to buy a compact and lightweight mid-range power station, it can indeed be your choice. Share your thoughts about Delta in the comments below.

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