EcoFlow DELTA Pro FAQ

The storage capacity is fully modular and expandable across the lineup. The classic DELTA Pro scales up to 25 kWh, the DELTA Pro 3 reaches up to 48 kWh, and the heavy-duty DELTA Pro Ultra series scales from 6 kWh up to 180 kWh using compatible extra batteries and stacked inverter configurations.

• DELTA Pro: 3.6–25 kWh
• DELTA Pro 3: 4–48 kWh
• DELTA Pro Ultra: 6–90 kWh
• DELTA Pro Ultra X: 12–180 kWh

Yes. Units like the DELTA Pro 3 and DELTA Pro Ultra are designed with high continuous and surge outputs. Depending on the configuration, the Ultra X can provide up to 36 kW across three paralleled units.

These systems can support demanding motorized appliances such as central air-conditioning systems, well pumps, refrigerators, and other high-startup-load equipment when properly configured.

To integrate compatible power stations into your home's electrical system, EcoFlow offers smart ecosystem accessories such as:

• Smart Home Panel
• Smart Gateway
• Compatible automatic transfer equipment
• Expansion batteries
• Compatible solar charging equipment

These components can allow the backup system to respond automatically when grid power is interrupted, depending on the specific system configuration and installation.

Yes. Compatible systems can be managed through the EcoFlow app and compatible monitoring hardware such as PowerInsight.

Depending on the configuration, you can monitor solar generation, battery levels, system status, and energy consumption and use that information to optimize energy usage.

Depending on the model and available accessories, an EcoFlow DELTA Pro system can be recharged through multiple methods:

• Standard AC wall outlets
• Solar panel arrays
• EV charging stations using compatible adapters
• EcoFlow Smart Generators

These options provide flexibility for everyday charging, emergency backup, and off-grid applications.

Yes. Solar charging is supported across the DELTA Pro line, with solar input specifications varying by model.

The DELTA Pro Ultra X, for example, supports high-voltage solar input configurations. Always verify the manufacturer's current voltage and current requirements for the exact configuration before installation.

Each tier has compatible expansion batteries. This modular design allows additional storage to be added without replacing the base unit, subject to the model's expansion limits.

• DELTA Pro: Up to 25 kWh
• DELTA Pro 3: Up to 48 kWh
• DELTA Pro Ultra: Up to 90 kWh
• DELTA Pro Ultra X: Up to 180 kWh

The DELTA Pro series includes four tiers:

• DELTA Pro
• DELTA Pro 3
• DELTA Pro Ultra
• DELTA Pro Ultra X

Each tier increases available capacity and output capability. The lineup uses a modular approach with expandable batteries and solar charging support, while whole-home integration depends on the specific model and compatible accessories.

The appropriate system depends on the home's electrical loads, desired backup duration, available charging sources, installation requirements, and budget.

• DELTA Pro: Entry-level option for essential circuits and smaller backup needs.
• DELTA Pro 3: Designed for larger backup requirements and longer-duration outages.
• DELTA Pro Ultra: Designed for larger whole-home backup configurations.
• DELTA Pro Ultra X: Designed for very high-capacity residential and larger-scale applications.

• DELTA Pro: 3,600W base output
• DELTA Pro 3: 4,000W from a single unit
• DELTA Pro Ultra: 7.2–21.6 kW
• DELTA Pro Ultra X: 12 kW per unit, up to 36 kW across three paralleled units

Yes. Compatible configurations support 240V output, with the available current rating varying by model.

• DELTA Pro Ultra X: 240V / 50A
• DELTA Pro Ultra: 240V / 30A
• DELTA Pro 3: 120/240V at 16.7A

Verify the exact electrical specifications and installation requirements for the specific model before connecting permanent loads.

Certification varies by model and configuration.

The specifications provided identify the DELTA Pro 3 and DELTA Pro Ultra as carrying UL9540 certification.

The DELTA Pro Ultra is identified as carrying both UL1973 and UL9540 certification.

Certification and permitting requirements can vary by location. Confirm current manufacturer documentation and local requirements before installation.