Ecoflow Delta Pro Ultra X Powerstation with 3 x Ultra X Expansion Batteries and 4 x 400W Solar Panels

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While we offer shipping for EcoFlow products to Hawaii, Alaska, and Puerto Rico, please note that EcoFlow does not provide official after-sales services, warranty coverage, or technical support in these regions. For any service-related inquiries regarding EcoFlow products shipped outside the U.S. mainland, please contact Wellbots directly. We recommend purchasing a CPS Accidental Warranty to protect your purchase when shipping to these locations, as it will ensure coverage in the event of damage or defects. Wellbots is solely responsible for all customer service, warranty claims, and support related to shipments to these regions.


EcoFlow DELTA Pro Ultra X Powerstation

with 3 × Ultra X Expansion Batteries and 4 × 400W Solar Panels
≈ 18,432 Watt Hours

Product Description

This bundle delivers a high-capacity, solar-ready whole-home or off-grid energy system featuring the EcoFlow DELTA Pro Ultra X Powerstation, three Ultra X Expansion Batteries, and four 400W Solar Panels.

The DELTA Pro Ultra X provides a powerful 12 kW base output with split-phase 120/240V capability, while the three Ultra X batteries supply approximately 18.4 kWh of dependable energy storage using long-life LiFePO₄ chemistry.

Four 400W monocrystalline solar panels offer up to 1,600 W of clean, renewable energy input, making this system an excellent solution for extended outages, off-grid living, cabins, workshops, and demanding home backup needs.

Key Specifications

DELTA Pro Ultra X Powerstation (with 3 Batteries)

  • Output Power: 12 kW base

  • Total Capacity: ~18.4 kWh (3 × 6,144 Wh Ultra X batteries)

  • Expandability: Up to 180 kWh with additional batteries

  • Battery Chemistry: LiFePO₄ (LFP)

  • Solar Input: Supports high-voltage PV arrays up to approximately 10 kW

  • Voltage Output: 120/240V split-phase

  • Switchover Time: Less than 20 ms when paired with compatible smart switching equipment

  • Modular Architecture: Stackable, hot-swappable batteries

Ultra X Expansion Batteries (3 Units Included)

  • Capacity per Module: 6,144 Wh

  • Total Storage Added: 18,432 Wh

  • Battery Chemistry: LiFePO₄

  • Protection System: Dual BMS with multi-layer safety architecture

  • Connection: Plug-and-play integration with DELTA Pro Ultra X

400W Solar Panels (4 Units Included)

  • Rated Power per Panel: 400 W

  • Total Solar Input Potential: Up to 1,600 W

  • Solar Cell Type: High-efficiency monocrystalline

  • Weather Resistance: Built for long-term outdoor use in harsh conditions

  • Mounting Options: Suitable for roof installation, ground mounts, or fixed arrays

What’s in the Box

DELTA Pro Ultra X Powerstation

  • 1 × DELTA Pro Ultra X Inverter

  • Connection Cables

  • User Manual & Warranty Card

Ultra X Expansion Batteries

  • 3 × Ultra X Battery Modules

  • Battery Connection Cables

  • User Manuals & Warranty Cards

400W Solar Panels

  • 4 × 400W solar Panels

  • Solar Connection Cables

  • User Manuals

Bundle Benefits & Use Cases

  • Large-Scale Backup: ~18.4 kWh of energy storage provides extended runtimes for essential circuits and major appliances.

  • High Output Capability: 12 kW output supports HVAC units, pumps, tools, EV charging, and heavy household loads.

  • Sustainable Solar Charging: Four 400W panels deliver consistent renewable power for daily recharging.

  • Durable, Permanent Install Panels: Ideal for rooftops, cabins, off-grid structures, and long-term outdoor use.

  • Expandable System: Add more batteries or additional inverters as your home energy needs grow.

  • Reliable & Safe: LFP chemistry ensures long cycle life and superior thermal safety.