EcoFlow Delta Pro Ultra Vs. EcoFlow Delta Pro: Is the Delta Pro Ultra a Perfect Upgrade to the Delta Pro?

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This article has been refreshed on January 9, 2024, with the latest inputs.

EcoFlow’s new flagship solar power station, the Delta Pro Ultra, hit stores on January 9, 2024, and it looks to be the right time to compare it against its predecessor, the Delta Pro, which has been a hot-selling model out there for around a couple of years.

The new Delta Pro Ultra, as you may know, is a massive 6 kWh/90 kWh power station with several incredible features that can make it run your entire household for several days during blackouts.

Stay tuned for my complete take on the Delta Pro Ultra vs. Delta Pro. So, you can decide what model is the right one or if you need an upgrade from the current Delta Pro to the new Delta Pro Ultra.

EcoFlow Delta Pro Ultra at a Glance @ $5700

EcoFlow Delta Pro Ultra Product Image


  • Colossal 6k Wh-90 kWh LFP Battery
  • Massive 7.2-21.6kW Output
  • 5.6k-Watt-16.8k-Watt Solar Input
  • Advanced EcoFlow Smart Home Panel 2.
  • Four 120V, 20A Max AC Output Sockets
  • Single 120V, 30A Max AC Output
  • Single NEMA L14-30 120/240V Split Phase Port
  • Two USB-A 5V⎓2.4A, 12W Max Ports
  • Two USB-C 100W Max Ports
  • Single Anderson DC Output Port
  • One (Infinity Port) Power Input/Output Port.
  • High-Solar Input MPPT Port 4000 Watts
  • Low-Solar Input MPPT Port 1600 Watts
  • AC Charging: 100-120V~15A; 200-240V~12.5A, 50/60Hz
  • 4G Modem Port
  • Weight: Inverter: 72.75 lbs and Battery: 116.4 lbs
  • Size: Inverter: 27.2 x 18.7 x 8.35 in and Battery: 26 x 18 x 8 in

EcoFlow Delta Pro at a Glance @ $2600

EcoFlow Delta Pro Product Image


  • 3.6 kWh/ 25 kWh LFP Battery.
  • 3,500 Cycles to 80% Capacity
  • 3600-Watt/7200-Watt Ouput.
  • Two USB-C 100-Watt Ports.
  • Two USB-A Ports, 5V, 2.4A, 12W Max.
  • Two DC5521 DC Ports.
  • 1800-Watt AC Charging Input.
  • 1600-Watt Solar Charging Input.
  • Wi-Fi and Bluetooth Connectivity
  • Weight: 99 lbs
  • Size: 25 x 11.2 x 16.4 in

The Battery Capacity 

Before we delve into the technicalities, let’s talk about what powers these beasts.

As you might know, both the Delta Pro Ultra and Delta Pro carry LFP batteries. These batteries boast an impressive 3,500 cycles of lifespan, ensuring that you can charge and discharge them countless times without significant capacity loss. That means these powerhouses can keep running your home, office, or off-grid builds smoothly for a decade or even more.

Delta Pro Ultra Vs Delta Pro Battery Capacity

When it comes to battery capacity, the Delta Pro Ultra, with its 6 kWh battery, dwarfs the 3.6 kWh capacity of its predecessor.

Though both models are super good in terms of scalability, the new Delta Pro Ultra, with its 6 kWh battery, can be expanded to a massive 30 kWh capacity compared to the 21.6 kWh maximum of the outgoing model.

Further, with three inverters paired together and the maximum battery pack with each, you can raise the capacity threefold. Yes, you read it right; you get a massive 90 kWh, which gives the new Delta Pro Ultra an incredible edge over its predecessor or any other home battery over there, including the ones from Zendure, Bluetti, and Anker, for sure.

Smart Home Panels and Connectivity

Scaling up, as said above, is where it gets really exciting.

The Delta Pro supports a maximum capacity of 21.6 kWh with two similar arrays connected using a Smart Home panel or Double Voltage Hub. However, the Delta Pro Ultra takes it to the next level, reaching a whopping 90 kWh by connecting three inverters with the new Smart Home panel.

That simply means if you’re eyeing a whole-home backup system, the Delta Pro Ultra can be your choice.

In layman’s terms, a 6 kWh battery can keep you comfortably powered for a couple of days during a blackout. With five batteries, you’re looking at a luxurious 10 days without any worry about power.

Easy-to-Use Battery Expansion 

Delta Pro Ultra Vs Delta Pro Smart Cable for Extension

Connecting extra batteries is a breeze with the Delta Pro Ultra’s innovative stackable design. Its tiny and cute expansion cable makes expanding your battery capacity a straightforward task.

AC Output and Inverter Power

Next, let’s see what power output the EcoFlow biggies have. The Delta Pro, as you know, offers 3.6 kW of AC output, which jumps up to 4.5 kW once the X-Boost mode is on.

Meanwhile, the brand-new Delta Pro Ultra storms in with a mighty 7.2 kW, straight out of the box, and it’s capable of delivering 240 volts right away, yes, from a single inverter itself.

Charting Ports and Outlets 

Both units offer an array of charging outlets, including AC sockets, USB and DC ports, and more. The Delta Pro takes the lead with four standard AC outlets, a 30-amp RV socket, and various USB and DC ports.

Delta Pro Vs Delta Pro Ultra Charging Outlets

The Delta Pro Ultra, while providing slightly fewer USB ports, compensates with a powerful Nema L14 socket capable of delivering 240 volts.

What I see more interesting is that all the ports, including the output and input ones, are very neatly placed on the Delta Pro Ultra. Each has a removable rubber cap, which protects the inlet holes from dust and water splashes when not in use.

Charging Inputs 

One of the most crucial aspects of these home batteries is their ability to harness solar power, which is what makes them amazing green innovations.

The Delta Pro features a robust MPPT charger, supporting up to 1,600 watts. However, the Delta Pro Ultra steps it up with not only an MPPT charger of 1,600 watts but also a high-voltage MPPT charger that accommodates up to 4,000 watts. This opens the door to a staggering 16.8 kWh of solar input, making it a dream for solar enthusiasts to power their entire homes with green energy.

Both units can be charged using AC power, but the Delta Pro Ultra offers flexibility. Charging at 1,800 watts is possible using a 120-volt socket while plugging into a 240-volt socket can boost charging speed to 3,000 watts. Additionally, both units can be charged using an EV charger, providing an extra layer of convenience for electric vehicle owners.


Even if they are designed as home battery packs, portability is a significant factor, and both units address it differently.

The Delta Pro, being the smallest of the duo, enjoys the edge with wheels and an extendable handle, making it easy to transport.

However, the Delta Pro Ultra, though slightly heavier, comes with an innovative wheel platform and chassis for convenient movement. You also get additional accessories, including larger wheels, for enhanced portability.

Check Out the Delta Pro Ultra Here

EcoFlow Delta Pro Ultra Price

The EcoFlow Delta Pro Ultra comes in multiple kits, with the basic Starter Kit starting at $5800, which includes a single unit of Delta Pro Ultra inverter and a single battery of 6 kWh.

The Intelligent Kit, which comprises a starter kit along with an extra inverter and battery and an EcoFlow Smart Home Panel 2, has a price of around $7000.

EcoFlow Delta Pro: All to Know About

EcoFlow Delta Pro is an enormous home backup power station from EcoFlow, the famous maker of Delta and River solar power stations. The heavy portable home battery ecosystem can offer you ultimate home backup, off-grid, and emergency power.

Delta Pro is an expandable battery backup station that can ensure you a storage capacity in the range of 3.6kWh to 25kWh with a power of 3.6kW to 7.2kW. It has a special expandable battery pack, a gasoline generator, and a range of other accessories to expand its capacity and deliver uninterrupted power.

Along with Delta Pro, EcoFlow also unveiled a lite variant, Delta Max, which was later upgraded with the Delta 2 Max. The Delta Max was originally a 2016 Wh expandable power station with a 2400W inverter and 3400W X-Boost power.

EcoFlow Delta Pro Overview

The Delta Pro is a 3600 Wh power station with a powerful 3600-watt power inverter inside.

But it can even run bigger appliances up to 4500 watts when its famous X-Boost mode is turned on. Thus, it can smoothly run your large appliances like air conditioners, washers, power tools, and more.

Its amazing modular feature is a thing of great attraction. You can pair two units of Delta Pro power stations to get a much more reliable power backup for both home and off-grid applications.

For home use, the brand has launched a Smart Home panel, which can make you enjoy an overwhelming power of 7200 watts through your home circuits to operate 240-watt electrical devices.

Meanwhile, a special Double Voltage Hub can also bring the power of two Delta Pros together to get an output of 240V and 7200W in off-grid applications. That can make it smoothly run a variety of high-power outdoor devices.

Moreover, you can expand the storage capacity of a Delta Pro up to a colossal 25kWh by attaching it with up to two of its special extra battery modules and the specially designed EcoFlow gas generator. Well, a pair of the 3600Wh Smart Extra Batteries itself can take the capacity of the Delta Pro to a huge 10.5Wh.

The gas generator is meant to offer additional backup power in extended blackouts and extreme storms. It is made to work the Delta Pro ecosystem in a way you will never run out of power even in long emergencies.

EcoFlow Delta Pro Charging Options

You have multiple options to recharge EcoFlow Delta Pro.

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 an 1800-watt 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, an EV charging station, and a 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.

Compatible Solar Charger

The brand has launched a 400-watt, 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 more 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 combination with the solar output and an AC outlet, you can charge a Delta Pro fully in just 1.6 hours.

EcoFlow Delta Pro Charging Outlets

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.

In addition 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.

EcoFlow Smart Extra Battery Pack

EcoFlow offers an impressive expansion battery pack.

The 3600Wh battery module is a powerful and long-lasting LifePO4 unit that can expand the capacity of Delta Pro further.

The battery pack has a size of 25 x 11.2 x 16.4 inches, and it weighs 84 lbs. Interestingly, you have the extra battery with the same design as Delta Pro, and it touts a strong build and two built-in carrying handles for easy moving.

Sum Up

In conclusion, the choice between the Delta Pro and Delta Pro Ultra boils down to your specific needs. If you’re looking for a budget-friendly, straightforward solution with portability in mind, the Delta Pro will continue to be a solid choice.

I hope the brand will have Delta Pro on sale even after the launch of the new upgrade.

On the other hand, if you inhabit a larger space, have power-hungry appliances, and desire a more advanced and comprehensive solution, the Delta Pro Ultra is going to be your next backup power source.

By the way, happy news for the current users of the Delta Pro! With a Smart Home panel, you can integrate both Delta Pro and Delta Pro Ultra into a unified power system, providing uninterrupted power backup for your entire home.


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