EcoFlow Delta Pro Ultra Vs EcoFlow Delta Pro: Which one is Better?

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By James

EcoFlow is a company dedicated to portable power solutions, specializing in portable power stations and solar panels. They are announcing their new flagship model, the EcoFlow Delta Pro Ultra, and comparing it to the previous flagship model, the EcoFlow Delta Pro.

The EcoFlow Delta Pro Ultra and Delta Pro are portable lithium battery power stations designed to store energy from solar panels or the grid, and provide power during blackouts or for off-grid use. Both models offer scalable battery capacity, powerful AC and DC outputs, fast recharging capabilities, and advanced connectivity features.

This article will compare the key features and specs of the Delta Pro Ultra and Delta Pro power stations. We’ll examine the battery capacity, outputs, charging speeds, connectivity, and other aspects to help determine the ideal user and application for each model. The goal is to provide an in-depth look at EcoFlow’s newest power station flagship and how it improves upon the previous generation.

Battery Type

Both the EcoFlow Delta Pro and Delta Pro Ultra use lithium iron phosphate (LFP) batteries. This battery chemistry provides several advantages:

  • Long lifespan – LFP batteries can withstand 3,500 charge cycles before dropping to 80% capacity. This translates to 10-20 years of typical usage.

  • Safety – LFP batteries are far less prone to overheating and fire risks than other lithium-ion designs.

  • Performance – LFP batteries maintain steady voltage output as they discharge. This results in consistent performance.

  • Eco-friendliness – LFP batteries do not contain toxic materials like cobalt. They are easier to recycle at end of life.

By using LFP battery packs, EcoFlow ensures its portable power stations will deliver years of reliable service. Customers don’t need to worry about the batteries degrading quickly. Both the Delta Pro and Delta Pro Ultra can serve as emergency backup power sources for many years into the future.

Battery Capacity

The battery capacity differs significantly between the two models due to their different sizes. The Delta Pro has a single battery with a capacity of 3.6 kWh. This is enough to provide backup power for a couple days during an outage, keeping essential appliances like your refrigerator, freezer, and some lights running. With conservative power usage focused on necessities, the 3.6 kWh Delta Pro battery can provide multiple days of outage support before needing recharging.

The larger Delta Pro Ultra packs a 6 kWh battery in each module. With just one battery, the Delta Pro Ultra has nearly double the capacity of the standard Delta Pro. This provides over a week of backup time for conservative usage focused on essentials. The Delta Pro Ultra can also be equipped with up to 5 batteries for a total capacity of 30 kWh, providing even longer runtimes.

So in summary, the Delta Pro offers a 3.6 kWh battery for shorter multi-day backup, while the Delta Pro Ultra offers both a 6 kWh standalone option as well as modular expansion up to 30 kWh for extensive backup capacity lasting weeks. The choice comes down to your requirements and budget.

Scalability

The Delta Pro and Delta Pro Ultra have different scalability options when it comes to adding additional batteries.

The Delta Pro has a base capacity of 3.6 kWh, but this can be scaled up to 10.8 kWh total by adding two extra batteries. You can also use a Smart Home Panel or Double Voltage Hub to connect two Delta Pro units, allowing you to achieve up to 21.6 kWh total capacity.

The Delta Pro Ultra starts with a higher base capacity of 6 kWh per battery. Each inverter can be stacked with up to 5 batteries, allowing you to achieve 30 kWh per inverter. By using the new Smart Home Panel, you can connect up to 3 inverters together and achieve a massive 90 kWh total capacity.

So while the Delta Pro allows scaling up to 10.8 kWh with extra batteries, the Delta Pro Ultra offers much more substantial scalability up to 90 kWh by stacking multiple high capacity batteries and connecting multiple inverters. This makes the Delta Pro Ultra better suited for large homes with higher energy needs.

Connectivity

Both the Delta Pro and Delta Pro Ultra offer great connectivity options. They can connect via Bluetooth to the EcoFlow mobile app for remote monitoring and control.

WiFi connectivity is also offered on both units. This allows you to control and monitor your power station remotely through the app, even if you are away from home. The Delta Pro Ultra takes connectivity a step further by adding a USB port for a 4G LTE module. This ensures you can stay connected to your power station even if your home WiFi connection is spotty or lost during a power outage.

By using the app with Bluetooth or WiFi, you can turn ports on or off, check the remaining charge level, and more. The connectivity makes these versatile power stations even more convenient and user-friendly. With the Delta Pro Ultra, the 4G option provides an extra layer of connectivity assurance when you need it most.

AC Output

The AC output power capabilities differ between the Delta Pro and Delta Pro Ultra models. The standard Delta Pro offers 3.6 kW of AC output, however this can be boosted up to 4.5 kW by enabling the X-Boost feature. The Delta Pro has four 120V AC outlets along with a 30 amp NEMA TT-30 socket, which is useful for powering RVs, boats, and similar high-power devices.

The Delta Pro Ultra steps it up with a hefty 7.2 kW AC output right out of the box. It also has four standard 120V outlets, but replaces the TT-30 socket with a new NEMA L14-30 socket. This outputs 240V, allowing you to directly power high-voltage appliances like electric stoves and dryers. With the Delta Pro Ultra’s higher capacity, you can easily power more high-wattage devices without worrying about overloading the inverter.

DC Output

The Delta Pro and Delta Pro Ultra both offer versatile DC power output options to charge devices directly, without needing to convert the power output to AC.

The Delta Pro has 4 USB-A ports, with some being fast charging, as well as 2 USB-C ports rated for 100W. It also includes a DC Anderson port commonly used for RVs, and a couple DC5521 ports.

The Delta Pro Ultra on the other hand only has 2 USB-A ports and 2 USB-C ports similar to the Delta Pro. However, it does away with the multiple DC5521 ports in favor of retaining just the single DC Anderson port.

So while the Delta Pro may have more total DC ports, the Delta Pro Ultra streamlines the offering to focus on fast charging over a variety of devices via USB-A, USB-C and the RV-friendly Anderson port. This more consolidated approach allows for cleaner design while still accommodating most DC charging needs.

Solar Charging

The solar charging capabilities differentiate the Delta Pro and Delta Pro Ultra. The Delta Pro has one MPPT charge controller that allows you to input up to 1600W through the XT60 port with a voltage range of 11-150V.

With the Delta Pro Ultra, there is an MPPT controller with 1600W input and up to 150V along with a high voltage MPPT input with 80-450V voltage range and 4000W max power input. This means you can connect a massive solar array up to 10 x 400W panels to the Delta Pro Ultra with no issues.

The Delta Pro Ultra can handle up to 16.8kW of solar input power with 3 connected inverters, providing quick 1 hour charging for a full day’s usage. The Delta Pro is limited to 1600W but still sufficient for most use cases without such extensive solar needs.

Overall the Delta Pro Ultra offers drastically more solar input capability while the standard Delta Pro still provides enough for typical solar array sizes. Those with minimal space or budget would be fine with the Delta Pro while the Ultra suits those wanting maximum solar energy independence.

Other Charging

Both the Delta Pro and Delta Pro Ultra offer versatile charging capabilities beyond solar.

The Delta Pro has a standard AC input that allows charging at 1800 watts when plugged into a wall outlet. For EV charging, you can connect an EV charger to the Infinity Port. This gives you the ability to harness energy from your electric vehicle to charge the Delta Pro.

The Delta Pro Ultra also has an AC input for 1800 watt charging when connected to 120V power. But when plugged into a 240V outlet, the input jumps to 3000 watts for even faster charging. It also retains the Infinity Port for EV charging just like the Delta Pro. So you can leverage your electric car to power up the Delta Pro Ultra on the go.

The flexible charging options on both models ensure you can replenish these systems through AC power, solar panels, or even your EV. This versatility makes them highly reliable backup power sources for your home or outdoor adventures.

Portability

The Delta Pro is designed to be highly portable, while the Delta Pro Ultra emphasizes power capacity over portability. The Delta Pro includes a retractable handle and built-in wheels, allowing a single person to roll it from place to place. Its compact size makes it easy to store and transport.

The larger Delta Pro Ultra does not have built-in wheels or a retractable handle. However, it can be purchased with an optional wheeled platform to improve mobility. The standard Delta Pro Ultra package comes with a flat platform with wheels that can be locked in place. While not as portable as the Delta Pro, the Delta Pro Ultra is still movable by a single person. Its emphasis is on providing maximum power capacity rather than maximum portability.

So if portability and compact storage are critical, the Delta Pro may be the better choice. But the Delta Pro Ultra offers vastly greater power capacity in exchange for less portability. It’s a tradeoff between power and convenience.

Advanced Cooling System in Delta Pro Ultra

The Delta Pro Ultra features an innovative cooling system called anti-gravity liquid cooling. This is a major upgrade over the basic fan cooling of the original Delta Pro.

The anti-gravity liquid cooling involves liquid being pumped through the system to draw heat away from critical components. The hot liquid then passes through a radiator and fans that dissipate the heat. This allows for far greater cooling capacity compared to just air cooling with fans.

There are several advantages to the Delta Pro Ultra’s advanced liquid cooling:

  • It prevents overheating even under sustained heavy loads or high ambient temperatures. The large radiator and fans provide ample cooling power.

  • By keeping components cooler, it extends their longevity and reliability. Excessive heat damages electronics over time.

  • Liquid cooling is quieter than just relying on multiple loud fans for cooling. It provides effective cooling with lower noise.

  • The system is designed so that the coolant naturally circulates through convection, allowing the pump to be turned off at times. This “anti-gravity” design passively cools the system when possible.

  • The sealed liquid loop requires no maintenance or refilling, unlike some liquid cooling systems. It’s self-contained and automated.

The advanced cooling allows the Delta Pro Ultra to sustain very high power draws safely. This enables it to deliver a high 7200W AC output continuously thanks to the cooling. It’s a clever engineering solution that sets the Ultra apart from other portable power stations.

UPS Capability

A key feature for backup power solutions is uninterrupted power supply (UPS) capability. This ensures connected devices continue operating smoothly during outages or fluctuations.

The Delta Pro originally included an EPS (emergency power supply) with a 30 millisecond transfer time. The new Delta Pro Ultra significantly improves this with true UPS capabilities:

  • The Backup UPS ports switch over in just 20 milliseconds, ensuring most devices won’t notice any interruption.

  • The Online UPS ports have zero transfer time thanks to the dual redundant inverter design. There is absolutely no delay or disruption to connected equipment.

This combination of 20ms and 0ms transfer UPS provides comprehensive protection. The Delta Pro Ultra offers a major upgrade compared to the base 30ms EPS system on the Delta Pro model. Its advanced UPS design ensures seamless operation during grid failures for sensitive electronics and appliances.

Whole Home Connection

The Delta Pro and Delta Pro Ultra can be connected to your whole home to provide backup power during outages. One of the key ways to connect them is using the Smart Home Panel.

The Smart Home Panel allows you to wire the Delta Pro system directly into your home’s electrical panel. This provides a seamless transition to backup power when the grid goes down. The Smart Home Panel automatically detects a grid outage and switches your home’s power source to the Delta Pro within 20 milliseconds.

The Delta Pro Ultra works with an updated Smart Home Panel that has additional capabilities. The new Smart Home Panel enables connecting up to 3 Delta Pro Ultra units together. This allows you to scale up to a massive 90kWh capacity to power larger homes.

The Smart Home Panel also enables smart home energy management features. You can optimize when your home draws from the grid versus your Delta Pro Ultra batteries. This can help reduce your electricity bills and maximize self-consumption of solar power if you have solar panels.

Overall, the Smart Home Panel is the gateway to integrating a Delta Pro system seamlessly into your whole home. It transforms the Delta Pro from a portable power station into a sophisticated home energy storage system. The Delta Pro Ultra takes it a step further with a next generation Smart Home Panel with expanded capacity and optimization features.

Existing Delta Pro Users

The Delta Pro Ultra is an exciting new product from Ecoflow, but what if you already own the original Delta Pro system? The good news is that the Delta Pro is not suddenly obsolete with this new release.

In fact, the Delta Pro pairs quite well with the Ultra system. With just two Delta Pro units, the double voltage hub, and any extra batteries you may have, you can connect it all to the new Smart Home Panel. This allows you to use the Delta Pro alongside the powerful Delta Pro Ultra as one large and comprehensive home energy solution.

So for current Delta Pro owners, there is no need to replace your system. The Delta Pro still provides outstanding emergency power backup and off-grid capabilities. When combined with the Ultra, you unlock additional capacity, voltage control, and home integration that truly maximizes the potential of Ecoflow’s products working together.

The Delta Pro Ultra may offer more advanced features, but the original Delta Pro has not been left behind. Both units have strengths that allow Ecoflow to build customized home energy systems to meet each customer’s unique power needs.

Conclusion

In summary, both the EcoFlow Delta Pro and the new Delta Pro Ultra offer powerful solutions for backup power and off-grid living. The Delta Pro is more compact, portable, and budget-friendly, while the Delta Pro Ultra offers larger capacity, more advanced features like stacked batteries, and greater scalability.

For most households, the Delta Pro will likely meet their needs with its respectable 3.6 kWh capacity and expandability up to 10.8 kWh. It can provide backup power for 2-3 days in a standard home. With an X-Boost, it delivers up to 4.5 kW, and has versatile charging options. The Delta Pro is easy to transport thanks to its integrated handle and wheels. It’s a great all-around portable power station.

For larger homes with high power demands, the Delta Pro Ultra is a better fit. Its massive 6 kWh capacity per battery can scale up to 30 kWh with 5 batteries stacked. For whole home backup, multiple units can achieve up to 90 kWh. The Delta Pro Ultra has very fast solar charging capabilities, accepting up to 4,000 watts of solar input. It offers advanced features like 240V output, liquid cooling, and dual UPS capabilities.

In conclusion, while the Delta Pro Ultra is EcoFlow’s new flagship model with the latest tech, the Delta Pro still holds its own as an extremely capable power station. Consider your specific power needs and budget when deciding. Rest assured that either model is a smart investment into energy resilience and independence.