ecoflow|SKU:86989-var-59039-6c0618

EcoFlow DELTA Pro Ultra: 7,200W Whole-Home LFP Backup System

Whole-Home Backup Power That Scales With Your Needs

7,200W pure sine output — Runs 3-ton central AC seamlessly
Scale to 90kWh storage — Over 30 days of essential backup power
Online UPS zero switchover — Sensitive electronics stay protected continuously
5.6kW solar per inverter — Full day of home energy in one hour
3,500+ cycle LFP chemistry — Years of use before 80% capacity
  • FREE System Design Consultation -- Our engineers size your system for your actual consumption
  • Free Shipping -- LTL freight on large systems, no surprise charges
  • Compatibility Guarantee -- Pre-vetted components that work together out of the box

Price range: $3,597.95 through $12,443.95

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In the box

  • EcoFlow DELTA Pro Ultra Inverter
  • EcoFlow Portable Stand
  • EcoFlow AC Charging Cable-C20
  • EcoFlow Solar to Low-PV Port Charging Cable
  • Disassembly and Assembly Tool
  • Quick Start Guide and Warranty Card
EcoFlow DELTA Pro Ultra Whole-Home Backup Power
EcoFlow DELTA Pro Ultra: 7,200W Whole-Home LFP Backup System
$3,597.95 $12,443.95Price range: $3,597.95 through $12,443.95

Whole-Home Backup Power That Scales With Your Needs

The EcoFlow DELTA Pro Ultra delivers field-tested whole-home backup power with a scalable 6kWh to 90kWh LFP battery system. Its 7,200W pure sine inverter handles heavy loads like 3-ton central AC, while expandable solar input up to 5.6kW per inverter keeps your off-grid setup charged fast. Built for the homeowner who refuses to depend on the grid, this system integrates with the EcoFlow Smart Home Panel 2 for grid-independent energy management. Stack batteries as your needs grow — from emergency backup to full energy independence.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
7,200W Pure Sine Output
LFP Battery Chemistry
8,800W Fast Charging
3,500+ Cycle Life
7,200W
AC Output (Expandable to 21.6kW)
90kWh
Maximum Expandable Capacity
5.6kW
Solar Input Per Inverter
Grid-independent backup that actually works when the grid fails

Grid-independent backup that actually works when the grid fails

Grid-tied solar systems go dark the moment the utility drops. That defeats the purpose. The EcoFlow DELTA Pro Ultra operates as a true off-grid power source with online UPS, delivering uninterrupted 7,200W pure sine output to your home circuits the instant the grid fails. No transfer switch delay, no downtime, no spoiled food in the freezer. At Off Grid Vault, every system package is pre-vetted for component compatibility — the inverter communicates with the battery BMS, the solar input matches the charge parameters, and every connection is accounted for. You do not piece this together from random vendors and hope it works.

LFP battery storage that scales from 6kWh to 90kWh

LFP battery storage that scales from 6kWh to 90kWh

The base 6,144Wh LFP battery delivers 3,500+ cycles before reaching 80% state of health. That is years of daily charge-discharge cycles in real-world conditions. When you need more autonomy, stack up to fifteen battery packs for 90kWh total capacity — over 30 days of essential backup for a standard household. The battery management system provides overvoltage, overload, overtemperature, short circuit, low temperature, low voltage, and overcurrent protection. IP54-rated and operating from −4°F to 113°F, this battery is built for garages, utility closets, and unconditioned spaces. LFP chemistry means no thermal runaway risk and stable performance across the full temperature range.

5.6kW solar input recharges a full day of home energy in one hour

5.6kW solar input recharges a full day of home energy in one hour

A single inverter accepts 5.6kW of solar input through High and Low-PV technologies. Connect three inverters for 16.8kW total solar capacity — enough to gain a full day of household energy in 60 minutes of sun. The system also charges from the grid at 8,800W, from a gas generator, or from an EV charging pile. For the Independence Builder calculating ROI, this is the math: at $300 per month in utility costs, a $3,598 base system pays for itself in roughly 12 months when offsetting peak-rate consumption. Pair it with rooftop or portable solar and the payback accelerates. This is a solar-ready, grid-independent power system that makes the utility company irrelevant.

Is This System Right for Your Home?

The DELTA Pro Ultra fits homes with standard 120V/240V split-phase circuits and space for modular battery stacking.

  • Home wiring supports 120V/240V~ 60Hz split-phase input
  • Installation space of at least 27.2 × 18.9 × 8.4 in per inverter unit
  • Solar array output rated at 5.6kW or below per inverter connection

Built for Real-World Scenarios

From multi-day outages to permanent off-grid living, the DELTA Pro Ultra adapts to how you actually use power.

Whole-home emergency backup during extended grid outages
Off-grid homestead primary power with solar charging
Rooftop solar self-consumption with Smart Home Panel 2 integration

Full specifications

At a glance

Dimensions
27.2 × 18.9 × 8.4 in
Surface
LFP
Full specifications12 data points across 4 categories

Dimensions

Inverter Weight70 lb
Battery Weight (ea)111.8 lb
Inverter Dimensions27.2 × 18.9 × 8.4 in
Battery Dimensions (ea)26 × 18 × 8 in

Power & Performance

Capacity102.4V⎓60A, 6,144Wh
AC Output (Discharging)Pure sine, 7,200W total, 120V/240V~ 60Hz
DC Output12.6V⎓30A, 378W max
USB PortsUSB-A ×2:5V⎓2.4A, 12W max per port, total 24W, USB-C ×2:5/9/12/15/20V⎓5A, 100W max per port, total 200W
AC InputCharging: 100-120V~15A; 200-240V~12.5A, 50/60HzBypass: 100-120V~15A, 50/60Hz (duration less than 3hrs when the current exceeds 12A)

Materials

Battery Cell MaterialLFP

Compliance & Warranty

Battery Cycle LifeThe battery maintains 80%+ SOH (state of health) after 3,500 cycles at 0.5C/0.5C at 25°C (77°F)
Battery Protection typeOvervoltage protection, overload protection, overtemperature protection, short circuit protection, low temperature protection, low voltage protection, overcurrent protection

The Off Grid Vault Promise

Every system we sell is backed by real expertise, not just a product listing.

Free System Design ConsultationOur engineers size your system for your actual consumption — no guesswork, no incompatible components.
Free ShippingShips free on all orders, including LTL freight on large systems — no surprise freight charges.
30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.

DELTA Pro Ultra Whole-Home Backup Power

The EcoFlow DELTA Pro Ultra is a powerful and scalable whole-home backup system designed to keep your household running smoothly during power outages. Featuring an advanced 6kWh to 90kWh expandable battery system, this next-generation energy solution ensures uninterrupted power for essential appliances, from refrigerators to HVAC systems.

With a 7200W inverter (expandable to 21.6kW), the DELTA Pro Ultra can seamlessly integrate with home circuits, solar panels, or generators, providing flexible energy management for both on-grid and off-grid applications. Its smart energy management system allows for real-time monitoring and optimization, ensuring maximum efficiency and cost savings.


Whether you’re preparing for emergencies, seeking energy independence, or optimizing solar power usage, the EcoFlow DELTA Pro Ultra delivers reliable, high-capacity backup power to keep your home running without interruption.

Inverter Includes: EcoFlow DELTA Pro Ultra Inverter, EcoFow Portable Stand, EcoFlow AC Charging Cable-C20, EcoFlow Solar to Low-PV Port Charging Cable, EcoFlow Disassembly and Assembly Tool, Quick Start Guide, and Warranty Card.

Battery Includes: EcoFlow DELTA Pro Ultra Battery, EcoFlow Battery Connection Cable (DELTA Pro Ultra) 0.2m, and Safety Guide.


DELTA Pro Ultra Whole-Home Backup Power
DELTA Pro Ultra Whole-Home Backup Power

EcoFlow DELTA Pro Ultra Specs

  • Inverter Weight: 70 lb
  • Battery Weight (ea): 111.8 lb
  • Inverter Dimensions: 27.2 × 18.9 × 8.4 in
  • Battery Dimensions (ea): 26 × 18 × 8 in
  • Capacity: 102.4V⎓60A, 6,144Wh
  • AC Output (Discharging): Pure sine, 7,200W total, 120V/240V~ 60Hz
  • DC Output: 12.6V⎓30A, 378W max
  • USB Ports: USB-A ×2:5V⎓2.4A, 12W max per port, total 24W, USB-C ×2:5/9/12/15/20V⎓5A, 100W max per port, total 200W
  • Battery Cell Material: LFP
  • Battery Cycle Life: The battery maintains 80%+ SOH (state of health) after 3,500 cycles at 0.5C/0.5C at 25°C (77°F)
  • Battery Protection type: Overvoltage protection, overload protection, overtemperature protection, short circuit protection, low temperature protection, low voltage protection, overcurrent protection
  • AC Input: Charging: 100-120V~15A; 200-240V~12.5A, 50/60HzBypass: 100-120V~15A, 50/60Hz (duration less than 3hrs when the current exceeds 12A)
  • Battery IP Rating: IP54
  • Battery Discharging Temp:: −4°F to 113°F
  • Battery Charging Temp: −4°F to 113°F
  • Battery Storage Temp: −4°F to 113°F
  • High-PV: 80-450V⎓15A max, 4,000W max
  • Low-PV: 30-150V⎓15A max, 1,600W max
  • Inverter Temperature: −4°F to 113°F
  • Communication Method: Bluetooth & Wi-Fi & 4G



EcoFlow DELTA Pro Ultra Features

  • Month-long power security: Take home power dependability to another level with up to 90kWh battery capacity. For a standard household, that’s over 30 days of essential backup power to keep appliances like lights and refrigerators running strong (time may vary). Stackable and space-saving, it packs comfortably into a garage or utility closet.
  • Always in charge: You’re spoilt for choice with EcoFlow DELTA Pro Ultra’s charging options. As well as all our usual methods, like solar and the grid, you can now power up using a gas generator or even your EV charging pile. With the industry’s fastest charging speeds of 8800W, top up two batteries in only 2 hours.
  • One hour of solar for one day of power: By leveraging High and Low-PV technologies, a single inverter sets new portable solar input standards with a 5.6kW input*. Connect three inverters for a monumental 16.8kW, gaining a full day’s home energy in 60 minutes. Whether you prefer a portable setup or a rooftop solar system, you can achieve true energy independence.
  • Flexible Solar Systems: With its flexible plug-and-play design and unrivaled solar input, EcoFlow DELTA Pro Ultra empowers you to tailor your solution to fit your energy needs. EcoFlow DELTA Pro Ultra includes a PV locking feature, assuring safety and a solid energy connection.
  • EcoFlow X-Cooling: With its flexible plug-and-play design and unrivaled solar input, EcoFlow DELTA Pro Ultra empowers you to tailor your solution to fit your energy needs. EcoFlow DELTA Pro Ultra includes a PV locking feature, assuring safety and a solid energy connection.
  • One unit covers every appliance: With a 7.2kW output, EcoFlow DELTA Pro Ultra effortlessly runs even energy-hungry household items, like a 3-ton central air conditioner*. For more power, pair 3 inverters with the EcoFlow Smart Home Panel 2 to unlock a 21.6kW AC output. Plus, with X-Fusion you’ll get a constant 7200W output no matter what.
  • Rigid Solar System: EcoFlow DELTA Pro Ultra works seamlessly with existing rooftop solar panels, replacing sensitive solar inverters prone to failure. Working in tandem with EcoFlow Smart Home Panel 2, maximize the value of your solar power and cut a chunk of change off your energy bill.
  • Boost Performance with BMS: Our state-of-the-art LFP tech and advanced battery management system (BMS) regulates vital data, ensuring the safety, longevity, and high performance of EcoFlow DELTA Pro Ultra.With each battery offering a cycle life of 3500+, you’ll get years of use before capacity drops to 80%. Even then, it keeps powering on.
  • You won’t even notice the grid was down: Imagine a world where power outages go unnoticed. With EcoFlow DELTA Pro Ultra’s online UPS, you’ll get just that. With uninterrupted power flow, EcoFlow DELTA Pro Ultra safeguards your vulnerable electronic equipment round-the-clock. For extended outages, you don’t want to hear your backup in the background, so for low draws under 2000W*, it’s completely silent. With a whisper-quiet 0 dB, your nights remain undisturbed as it powers your devices.*For a maximum of 30 minutes.



Your Satisfaction with EcoFlow is Guaranteed:

  • 5-Year Limited Warranty
  • Lowest Price Guarantee

Additional information

Number of Inverters

1 x EcoFlow Delta Pro Ultra Inverter

Number of Battery Packs

1 x Battery- 6.144kWh, 2 x Battery-12.288kWh, 3 x Battery- 18.432kWh, 4 x Battery- 24.576kWh, 5 x Battery- 30.72kWh

Number of Smart Home Panel 2

1 x Smart Home Panel 2, None

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ecoflow is a trusted manufacturer of premium portable power stations. OffGridVault is an authorized dealer offering the full ecoflow lineup with free delivery, price match guarantee, and expert support.

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