EcoFlow Delta Pro: A Massive 3.6-25kWh, 3600-7200W Portable Solar Home Battery Ecosystem

Author: Amanda Swan

EcoFlow has entered into the fray of the heavy-duty solar generators with a massive, game-changer Delta variant. Called EcoFlow Delta Pro, the huge portable home battery ecosystem can ensure ultimate home backup, off-grid, and emergency power. EcoFlow has launched it on Kickstarter for crowdfunding.

Delta Pro is an expandable battery backup station that can offer a storage capacity in the range of 3.6kWh to 25kWh with a power of 3.6kW to 7.2kW. It has got a special expandable battery pack, a gasoline generator, and a range of other accessories to expand its capacity and deliver uninterrupted power. We would like to have a detailed look at Delta Pro and its accessories below.

Update 1: EcoFlow has Launched the Product on Kickstarter. Rush Up to Check out the Link Below to Pre-Order a Unit Before the Early Bird Rewards Run Out of the Stock. Its Price Starts at $1,999.

Update 2: Delta Pro Could Raise Nearly 6.5M USD from Around 1800 Backers in a Few Days After the Launch.

Besides Delta Pro, EcoFlow has also unveiled a lighter variant called, Delta Max. That is a 2016Wh expandable power station with a 2400W inverter and 3400W X-Boost power. A 400W EcoFlow solar panel is also another accompaniment of Delta Pro and Delta Max apart from the 1800W EcoFlow Smart Generator gas generator for emergency backup.


The Delta Pro is basically a 3600Wh power station with a 3600W power inverter.

It can even run your big appliances up to 4500 watts, thanks to the brand’s famous X-Boost mode. Thus, you get a portable power station to smoothly run your air conditioners, washers, power tools, and more.

Its amazing modular feature is a thing of attraction. You can pair two units of Delta Pros for both home and off-grid applications.

For home use, the brand has launched a Smart Home panel, which will help you enjoy a total power of 7200 watts through your home circuits to run 240W electrical devices.

Meanwhile, a special Double Voltage Hub can also bring together the power of two Delta Pros for a 240V, 7200W out in off-grid applications. That is indeed quite enough power to run a variety of high-power outdoor devices.

You can expand the storage capacity of Delta Pro up to 25kWh using up to two extra battery modules and the gas generator. A pair of the 3600Wh Smart Extra Batteries can take the capacity to 10.5Wh.

The gas generator can give you additional backup power in extended blackouts, extreme storms, and more. It is designed to work with the Delta Pro ecosystem in a way that you will never run out of power even in prolonged emergencies.

Notable Features

 ・Whopping 3.6-25kWh Portable Home Battery Ecosystem
 ・Powerful LiFePO4 Battery with 3500 Cycles Up to 80%.
 ・Massive 3600-7200W Inverter with Five AC Outlets.
 ・Amazingly Expandable and Modular Power Station.
 ・1800W AC Charging and 1200W Solar Charging Options.
 ・Versatile Charging Options with Multiple USB and DC Ports.
 ・All-Terrain Wheels and a Telescopic Carrying Handle. 


You have multiple options to recharge EcoFlow Delta Pro from.

Besides solar panels, you can rely on wall outlets, EV charging stations, carports, and wind turbines for charging. Moreover, the EcoFlow smart gas generator is another way you can keep the heavy power station charged up fully.

It offers a 1800W AC charging adapter. Thanks to the brand’s famous X-Stream charging mode, the device offers an adjustable AC charging speed in the range of 200W to 3000W. You can connect it to multiple sources like a 240V outlet, EV charging station, and Smart Home Panel.

Meanwhile, with an advanced MPPT controller, you can use a solar output of up to 1200 watts to get it charged faster under the sun. The 1800W gas generator is another quick way to charge it in an emergency.

A combination of these three options can make it charge at record-breaking speeds of up to 6000 watts.


The brand has launched a 400W highly efficient folding solar charger for Delta Pro and Delta Max. it is a single-piece, folding solar charger that you can store in a small room and carry like a suitcase after folding.

Once unfolded, you get a larger and powerful solar panel with a higher conversion rate of up to 22.4%. You can pair three units of the panel to achieve the maximum solar input of Delta Pro.

Moreover, you can use the solar panel along with other charging options to ensure quick charging.

In a combination of the solar output with an AC outlet, you can charge a Delta Pro fully in just 1.6 hours. You can have more other combinations of charging options for faster charging.

A Solar Tracker is another attraction. It is a superb way to automatically adjust the face of the solar panel against the sunlight to improve solar output by up to 30%.


The US version of the device sports five 3600W AC outlets with a surge of 7200 watts.

Meanwhile, the 220-240V variant has four AC outlets.

Coming to other charging options, Delta Pro features a pair of USB-A 12W, USB-A 18W Fast-Charge, and USB-C 100W ports each. A car power port of 126W and two regular 38W DC ports are other attractions, besides a 12.6V/30A Anderson power port.


It is a brilliant extra battery pack of 3600Wh capacity. The battery pack inside is a powerful and long-lasting LifePO4 unit.

The device has a size of 25 x 11.2 x 16.4 in and it weighs 84 lbs. You have it with the same design as Delta Pro and with a strong build and two built-in carrying handles.


As you know, it is the gasoline generator EcoFlow has designed for delivering backup power to Delta Pro and Max in extreme and prolonged emergency situations.

As per the brand, it has better fuel efficiency and is capable of charging the power station quickly.

The 1800W gasoline generator can produce a total surge of 1900 watts.

It has a size of 23.5 x 11.7 x 18.7 in and the weight goes 62.8 lbs. EcoFlow has also smartly designed it exactly like Delta Pro and its extra battery pack. It works on unleaded gasoline and the tank is a 4L one.


As said above, EcoFlow Delta Max is the lighter variant of Delta Pro. That is a more affordable alternative to the device and can be a more fine choice for outdoor enthusiasts and emergency preppers.

Delta Max is basically a 2016Wh portable power station with a 2400W inverter and an X-Boost power of 3600 watts. It has got six AC sockets and it features a 3600W dual charging option.

It can be charged with a solar output of up to 800 watts at 11-100V.

The power station features an AC charging input of 1800 watts, with which you can fully charge it in 1.8 hours.

By the way, like Delta Pro, the Max also works with EcoFlow Smart Generator for emergency power. But for the extra battery pack, it has got an exclusive 2016Wh light variant. You can connect up to two of the extra batteries to the Max.

Compared to Delta Pro, the Max is a lightweight device as it weighs just 48 lbs. The size of the device is 19.6 x 9.5 x 12 in. So, you can handle it in an emergency or in the wild rather easier than its bigger variant.


That has been our take on the EcoFlow Delta Pro power station. The much-awaited product has been attracting a lot of backers on Kickstarter. Just in a few days after its launch, it could collect as much as 6.5M USD from over 1700 backers. If you want to back it up, check out the link to Kickstarter here. It is really going to be a game-changer product in the market.

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