EcoFlow DELTA Pro Ultra vs. DELTA Pro 3: Specs-Based Comparison

Here’s a detailed comparison guide between the EcoFlow DELTA Pro Ultra and the EcoFlow DELTA Pro 3, two of EcoFlow’s most powerful energy solutions.

FeatureEcoFlow DELTA Pro UltraEcoFlow DELTA Pro 3
Battery Capacity6kWh–90kWh (modular)4.096kWh (expandable to 36kWh)
Inverter Output7.2kW–21.6kW (with 3 inverters)4kW (6kW with X-Boost)
Surge Power7.2kW–21.6kW8kW
Battery ChemistryLiFePO₄LiFePO₄
Cycle Life3,500+ cycles to 80%4,000 cycles to 80%
Max Solar Input5.6kW–16.8kW2.6kW (dual PV ports)
Voltage Output120V & 240V simultaneously120V or 240V (not both simultaneously)
Weight~132 lbs per module~114 lbs
IP RatingIP65 (battery modules)IP65 (battery pack)
UPS Transfer Time0ms10ms
Price (USD)Starts at $5,799$2,799

Table Caption: EcoFlow DELTA Pro Ultra vs. DELTA Pro 3 Specs Comparison


Power & Performance

The DELTA Pro Ultra is engineered for whole-home backup, delivering up to 21.6kW when configured with three inverters. This capacity is sufficient to power high-demand appliances like central air conditioners and electric ovens. EcoFlow+5EcoFlow+5EcoFlow+5EcoFlow

In contrast, the DELTA Pro 3 offers a 4kW output, extendable to 6kW with X-Boost technology. While suitable for essential appliances and tools, it may not support multiple high-demand devices simultaneously. Amazon+1EcoFlow+1EcoFlow


Battery Capacity & Cycle Life


The DELTA Pro Ultra boasts a modular design, allowing expansion from 6kWh up to 90kWh, catering to prolonged power needs. Its LiFePO₄ battery ensures over 3,500 cycles to 80% capacity. Amazon+5EcoFlow+5EcoFlow+5

The DELTA Pro 3 starts with a 4.096kWh capacity, expandable to 36kWh with additional batteries. It offers a longer cycle life of 4,000 cycles to 80%, making it a durable option for regular use. Outbound PowerEcoFlow


Output Ports & Expandability


The DELTA Pro Ultra supports simultaneous 120V and 240V outputs, making it ideal for comprehensive home power solutions. It integrates seamlessly with the EcoFlow Smart Home Panel 2 for automatic switchover and energy management. EcoFlow+7EcoFlow+7EcoFlow+7

The DELTA Pro 3 provides either 120V or 240V output (not both simultaneously) and can connect to home circuits via the Smart Home Panel 2. It includes multiple AC outlets, USB ports, and DC outputs for versatile use. The VergeEcoFlow Manuals+1EcoFlow+1


Portability & Weight

The DELTA Pro Ultra‘s modular components weigh approximately 132 lbs each, requiring a dedicated installation space.

The DELTA Pro 3 is more portable, weighing around 114 lbs, and features wheels and an ergonomic handle, making it suitable for mobile applications like RVs and job sites. EcoFlow


Charging Options

The DELTA Pro Ultra offers multiple charging methods, including solar (up to 16.8kW with three inverters), AC, and generator inputs, ensuring rapid recharging capabilities. EcoFlow+2EcoFlow+2Outbound Power+2

The DELTA Pro 3 supports up to 2.6kW solar input through dual PV ports and can be charged via AC outlets or EV stations, providing flexibility for various scenarios. EcoFlow


Price & Value

The DELTA Pro Ultra starts at $5,799, reflecting its advanced features and whole-home backup capabilities. New York Post+7EcoFlow+7EcoFlow+7

The DELTA Pro 3 is priced at $2,799, offering a cost-effective solution for users needing substantial power without full home integration. EcoFlow


Final Verdict

  • Choose the EcoFlow DELTA Pro Ultra if you require a scalable, whole-home backup system with high power output and seamless integration with home circuits.
  • Opt for the EcoFlow DELTA Pro 3 if you need a portable, versatile power station suitable for RVs, job sites, or partial home backup, offering a balance between power and portability.
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FAQs

Q: Can the DELTA Pro 3 and DELTA Pro Ultra be used together?

A: No, these units are not compatible with each other and cannot be connected in parallel.

Q: Is the DELTA Pro 3 suitable for powering an entire home?

A: While the DELTA Pro 3 can support essential appliances, it may not suffice for full home backup, especially for high-demand devices. The DELTA Pro Ultra is more appropriate for comprehensive home power needs.

Q: What is the warranty period for these units?

A: Both the DELTA Pro Ultra and DELTA Pro 3 come with a 5-year warranty, ensuring long-term reliability.


Individual buyer’s guides:

Last update on 2025-05-13 / Affiliate links / Images from Amazon Product Advertising API

Max Peters

Hi! I'm Max and I am passionate about off-grid solar technology and adventure! I'm using my knowledge of solar generators, solar panels, and everything in between to provide you with the best tools to keep you powered while off the grid.

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