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EcoFlow DELTA Pro Ultra Whole-Home Backup Power

EcoFlow DELTA Pro Ultra Whole-Home Backup Power
Save 33% Save 31%
$6,098.00
$6,098.00 - $14,179.00
$6,098.00
$4,199.00
$4,199.00 - $14,179.00
$4,199.00
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✓ PRE-ORDER: ETA Mid January
✓ Questions? Talk to a EcoFlow Expert: 1-303-876-7654

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Number of Inverters: 1 x EcoFlow Delta Pro Ultra Inverter
Number of Battery Packs: 1 x Battery- 6.144kWh
Number of Smart Home Panel 2: None
PRE-ORDER: This item is currently out of stock at EcoFlow. New stock is expected mid-January 2027, and pre-orders ship as soon as it arrives.
EcoFlow

EcoFlow DELTA Pro Ultra Whole-Home Backup Power

The EcoFlow DELTA Pro Ultra is a scalable, expandable whole-home battery backup system built to keep your household running through any outage — from a few hours to a full month. With a modular 6.144kWh–90kWh LFP battery bank and a 7,200W inverter (expandable to 21,600W) , it powers everything from your refrigerator and Wi-Fi router to a 3-ton central air conditioner, without the noise or fumes of a gas generator.

Charge it from solar, the grid, a gas generator, or your EV charging pile — often at the same time — and let its smart energy management system handle the switching automatically. As an authorized EcoFlow dealer, Renewable Outdoors backs every DELTA Pro Ultra with a 5-year limited warranty and our Price Match Guarantee.

EcoFlow DELTA Pro Ultra Whole-Home Backup Power
Price Match Guarantee
Authorized EcoFlow Dealer
Genuine EcoFlow Equipment
5-Year Warranty Coverage
Free Shipping
0% APR Financing via Affirm

Why the EcoFlow DELTA Pro Ultra Whole-Home Backup Power

EcoFlow DELTA Pro Ultra

EcoFlow DELTA Pro Ultra Inverter

Solar to Low-PV Port Charging

Solar to Low-PV Port Charging Cable

Disassembly and Assembly

Disassembly and Assembly Tool

Quick Start Guide & Warranty

Quick Start Guide & Warranty Card

EcoFlow DELTA Pro Ultra Battery

EcoFlow DELTA Pro Ultra Battery (6.144kWh)

Battery Connection Cable

Battery Connection Cable (0.2m)

EcoFlow DELTA Pro Ultra Whole-Home Backup Power Specifications

Configuration Total Capacity
1 Inverter + 1 Battery 6.144 kWh
1 Inverter + 2 Batteries 12.288 kWh
1 Inverter + 3 Batteries 18.432 kWh
1 Inverter + 4 Batteries 24.576 kWh
1 Inverter + 5 Batteries 30.72 kWh
Capacity (per battery) 102.4V⎓60A, 6,144Wh, LFP chemistry
AC Output (Continuous) 7,200W pure sine wave, 120V/240V~ 60Hz (expandable to 21,600W with 3 inverters + Smart Home Panel 2)
AC Surge Output 10,800W
DC Output 12.6V⎓30A, 378W max
USB Ports 2× USB-A (5V⎓2.4A, 12W max each); 2× USB-C (up to 100W max each, 200W total)
Solar Input (per inverter) High-PV: 80–450V⎓15A, 4,000W max · Low-PV: 30–150V⎓15A, 1,600W max (5,600W combined)
AC Charging Input 100–120V~15A or 200–240V~12.5A, 50/60Hz; up to 8,800W with dual-battery fast charging
Battery Cycle Life 80%+ capacity retained after 3,500 cycles (0.5C/0.5C at 77°F)
UPS Response Time <20ms (backup mode) / 0ms (online UPS mode)
Certifications UL1973 (battery safety) & UL9540 (energy storage systems)
IP Rating IP54 (dust and splash resistant)
Operating Temperature -4°F to 113°F (charging, discharging & storage)
Connectivity Bluetooth, Wi-Fi, and 4G (via EcoFlow app)
Inverter Dimensions / Weight 27.2 × 18.9 × 8.4 in / 70 lb
Battery Dimensions / Weight (each) 26 × 18 × 8 in / 111.8 lb
Warranty 5-Year Limited Warranty

Documentation & Downloads

EcoFlow DELTA Pro Ultra Whole-Home Backup Power Spec Sheet (PDF)

Price Match Guarantee

Find it cheaper at another authorized EcoFlow dealer? Call us before you order and we will take care of you.

Authorized EcoFlow Dealer

This is genuine EcoFlow equipment, sold and supported by Renewable Outdoors as an authorized dealer. Coverage: 5-Year per the manufacturer terms stated for this product.

Help From People Who Sell These Every Day

Call (303) 876-7654. We would rather spend ten minutes sizing your system correctly than process a return later.

EcoFlow DELTA Pro Ultra Whole-Home Backup Power: Frequently Asked Questions

How much energy does the DELTA Pro Ultra Whole-Home Backup Power provide?
The DELTA Pro Ultra Whole-Home Backup Power is rated at 102.4V⎓60A, 6,144Wh, LFP chemistry (Capacity (per battery)). That figure comes straight from the manufacturer's specifications for this model, and the full spec sheet is linked above under Documentation & Downloads.
How long does the DELTA Pro Ultra Whole-Home Backup Power last?
The DELTA Pro Ultra Whole-Home Backup Power is rated for 80%+ capacity retained after 3,500 cycles (0.5C/0.5C at 77°F) (Battery Cycle Life), giving it a long usable service life under normal use.
What certifications does the DELTA Pro Ultra Whole-Home Backup Power carry?
The DELTA Pro Ultra Whole-Home Backup Power carries these certifications: UL1973 (battery safety) & UL9540 (energy storage systems).
Is the DELTA Pro Ultra Whole-Home Backup Power rated for outdoor installation?
Built for the Long Haul Certified to UL1973 and UL9540 — the standard for home energy storage — with IP54 protection, an LFP battery rated for 3,500+ cycles to 80% health, and reliable operation from -4°F to 113°F.
What's covered under the warranty?
EcoFlow backs the DELTA Pro Ultra Whole-Home Backup Power with a 5-Year warranty per the manufacturer's terms stated for this product. As your retailer, Renewable Outdoors can also help you navigate a warranty claim — call us at (303) 876-7654.
How big and heavy is the DELTA Pro Ultra Whole-Home Backup Power?
The DELTA Pro Ultra Whole-Home Backup Power has dimensions of 27.2 × 18.9 × 8.4 in / 70 lb and a weight of 27.2 × 18.9 × 8.4 in / 70 lb. Plan your mounting and placement around those figures.
How does solar charging work with the DELTA Pro Ultra Whole-Home Backup Power?
Rapid Solar Charging Advanced High and Low-PV technology delivers up to 5,600W of solar input per inverter — 16,800W across three units — enough to bank a full day of home power in about an hour of strong sun.
Is this genuine EcoFlow equipment?
Yes. Renewable Outdoors is an authorized EcoFlow dealer, and this product is genuine EcoFlow equipment.
Does Renewable Outdoors offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and the DELTA Pro Ultra Whole-Home Backup Power is backed by our Price Match Guarantee — if you find it cheaper at another authorized EcoFlow dealer, call us at (303) 876-7654 before you order and we will take care of you.
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