EcoFlow - DELTA Pro Ultra 6kWh Stackable Battery Module

Expand your energy independence with the EcoFlow DELTA Pro Ultra Battery—an essential building block for scalable, whole-home backup power. With 6kWh of capacity per unit and support for up to 15 batteries (90kWh total), this LFP battery module transforms the EcoFlow DELTA Pro Ultra system into a month-long power solution for grid outages, off-grid living, or critical backup scenarios.

• 6–90kWh Expandable Capacity: Each battery adds 6kWh of energy storage—scale up to 90kWh to power a home for 30+ days during outages (based on essential loads).
• Modular & Stackable Design: Neatly stacks in garages or utility rooms with a compact 26×18×8 in footprint. Fixing Metal Tab available for stability with 3+ units (contact EcoFlow support).
• Plug-and-Play Setup: Installs in just 1 minute—no wiring, no tools. Simply connect to the EcoFlow DELTA Pro Ultra Inverter and you’re ready to go.
• Built for Harsh Conditions: IP54-rated for water and dust resistance and built to operate from -4°F to 113°F. Perfect for garages, sheds, and off-grid shelters.
• EV-Grade LFP Chemistry: Long-lasting lithium iron phosphate battery with up to 3500 cycles to 80% capacity for over 10 years of use.

Requires: EcoFlow DELTA Pro Ultra Inverter (sold separately)

Perfect For:

• Whole-home backup systems
• Off-grid cabins or homesteads
• Expandable solar energy storage
• Mission-critical equipment and preparedness

Specifications:

• Capacity: 6144Wh (6.1kWh)
• Battery Chemistry: LFP (Lithium Iron Phosphate)
• Cycle Life: 3500 cycles to 80% capacity
• Dimensions: 26 × 18 × 8 in (660 × 455 × 204 mm)
• Weight: 111.8 lbs (50.7 kg)
• IP Rating: IP54 (dustproof & splashproof)
• Operating Temp: -4°F to 113°F (-20°C to 45°C)
• Compatibility: EcoFlow DELTA Pro Ultra Inverter
• Warranty: 5 years

What's in the box: