EcoFlow DELTA Pro Ultra X Whole-Home Backup Power

Name: EcoFlow DELTA Pro Ultra X Whole-Home Backup Power
Brand: EcoFlow
SKU: EFDELTAPROUX-US-2EB
Price: 7899.0 USD
Availability: InStock

BY: EcoFlow

SKU: EFDELTAPROUX-US-2EB

| Availability: In stock

$10,597.00

$7,899.00

You Save: $2,698.00

Product Highlights

Up to 12kW AC output per inverter with 120/240V support
Modular batteries let you expand storage as needs grow
Supports up to 10kW solar input with compatible panels
EcoFlow app lets you monitor the system remotely

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Ecoflow Delta Pro Ultra Whole-Home Backup Power

Take control of your home’s energy with the EcoFlow DELTA Pro Ultra X Whole-Home Backup Power System. This advanced, modular power solution is designed for complete energy independence. Combining the DELTA Pro Ultra X Inverter and Smart Extra Batteries, this system delivers up to 12kW of continuous power and expandable storage up to 184kWh for whole-home coverage.

Whether you’re powering your home during outages, running heavy appliances, or building a hybrid solar setup, the DELTA Pro Ultra X offers ultra-fast UPS switching, smart grid integration, and EcoFlow app monitoring, all in one sleek, plug-and-play design. You can also connect existing rooftop solar for up to 10kW of solar input, a simple way to turn power from the sun into backup you can count on.

EcoFlow DELTA Pro Ultra X Whole-Home Backup Power Features

As part of EcoFlow’s DPU inverter lineup, the DELTA Pro Ultra X packs the following features:

Whole-Home Power Capacity - Deliver up to 12kW of continuous AC output power or expand with three inverters (36kW total), powerful enough to run HVAC systems, EV chargers, and all major home appliances simultaneously. Pairing the system with a time-of-use utility plan can also help you shift usage away from peak electricity rates.

Expandable Energy Storage - Pair with up to 10 Smart Extra Batteries per inverter for a total of 61.4kWh of battery storage, or scale to 184.3kWh with three inverters, ideal for long-term backup or full off-grid living.

Smart, Seamless UPS - Experience <10ms switchover time (standalone) or <20ms with the Smart Home Panel 3. Your home stays powered even during grid outages, keeping essential appliances like refrigerators and medical equipment running without interruption.

Durable LFP Battery Chemistry - Built with LiFePO₄ (LFP) cells for safety, stability, and a long battery life, ensuring long-term performance with over 3,500 cycles to 80% capacity.

Intelligent System Management - Monitor, control, and optimize your power system through the EcoFlow app or the integrated LCD screen for real-time performance tracking.

Modular Design for Every Home - Stackable battery packs, portable stands, and simple installation make scaling up your system effortless and flexible, whether you’re covering a single area of your home or building a complete solar-integrated powerhouse.

For an even simpler whole-home setup, pair the inverter with the EcoFlow Smart Gateway (200A), which EcoFlow lists as compatible with the DELTA Pro Ultra X Inverter and handles backup switching and power distribution for the system, with remote monitoring built in.

Whether you choose the Smart Gateway or Smart Home Panel 3, both give you a flexible path to whole-home control.

When you weigh the wattage on tap against the real cost of losing power for days, the DELTA Pro Ultra X starts to look like a smart deal for whole-home peace of mind.

EcoFlow DELTA Pro Ultra X Whole-Home Backup Power Applications

Whole-home backup – Keep your entire household powered during power outages.
Off-grid living – Perfect for remote homes, cabins, or homesteads with solar systems.
RV and mobile setups – Provides portable power for high-demand mobile setups, keeping your devices running on the go, backed by the included stand and casters for quick repositioning.
Commercial use – Run tools, equipment, and server systems with clean, silent energy.

What's Included

Everything you need is included with your product.

1 x Ecoflow Delta Pro Ultra X Inverter
1 x Ecoflow PV Switch Box
1 x Ecoflow Charging Cable
1 x Ecoflow Battery Connection Cable (2.465ft)
1 x Ecoflow Delta Pro Ultra / Ultra X Portable Stand

4 x Ecoflow Side Mount Caster
1 x Ecoflow Solar Panel MC4 Disconnect Tool
2 x Ecoflow Smart Extra Battery (DELTA Pro Ultra X)
1 x Ecoflow Battery Connection Cable (0.65)
1 x User Manual & Warranty Card

Most homeowners can expect an easy installation process with minimal downtime, especially with the included stand, casters, and PV Switch Box handling much of the heavy lifting. It's a good idea to confirm your electrical panel's amperage before your installer arrives.

Warranty

5 years Warranty

EcoFlow DELTA Pro Ultra X Inverter Specifications

Specification	Details
Standard Capacity	12.288kWh, 6144Wh x 2
AC Output	12kW, 120/240V, 60Hz \| Up to 36kW in 3 parallel units
Net Weight (lb)	Inverter: 34.5±0.2kg（70.06±0.44 lb) \| Battery: 50.5±0.2kg（111.3±0.44 lb）
Battery Chemistry	LFP
Screen	✓
AC Outlets	NEMA 5-20 (x2) 120V 20A \| NEMA L14-30 (x1) 120/240V 30A \| NEMA 14-50 (x1) 120/240V 50A
Rated AC Input Power	12kW,100/200-120/240V, 50A
Noise Level	Noise level <30 dB at 0.5 m (ambient temperature 25 °C, 4 kW output)
Battery Temperature	Operating&Storage temp: −4°F to 113°F (−20°C to 45°C)
Maximum Capacity with 1 inverter	61.440kWh, 6144Wh x 10
Maximum Capacity with 3 inverters	184.32kWh, 6144Wh x 30
Dimension (mm)	Inverter: 675 × 475 × 230 mm (26.6 × 18.7 × 9.06 in.) \| Battery：660 × 455 × 204 mm (26 × 18 × 8 in.)
Warranty	5 years
Extra Battery	✓
UPS	<10ms standalone, <20ms with Smart Home Panel 3
DC Input	Total 10kW, 2 ports \| 80-500V/15A, 5000W Max Each
IP Rating	IP54
Inverter Temperature	Operating&Storage temp: −4°F to 122°F (−20°C to 50°C)

EcoFlow 6kWh Battery ( DELTA Pro Ultra / Ultra X) Specifications

Specification	Details
Model	EFYJ751-BP
Net Weight	Approx. 50.5 kg (111.3 lb)
Dimensions	Approx. 660 × 455 × 204 mm (26 × 18 × 8 in.)
Capacity	102.4V⎓60A 6,144Wh
Cell Material	LFP（LiFePO4）
Protection Type	Overvoltage protection, Overload protection, Overtemperature protection, Short circuit protection, Low temperature protection, Low voltage protection, Overcurrent protection
Operating Temperature	－20℃ to 45℃ (－4℉ to 113℉)
Storage Temperature	－20℃ to 45℃ (－4℉ to 113℉)
Operating Humidity	＜90%
Altitude	＜3000m

Frequently Asked Questions

Can I power my entire home with the DELTA Pro Ultra X?

Yes. One inverter provides up to 12kW, enough for most homes. With three inverters, you can scale to 36kW for full-house power, including HVAC and EV charging. If you're not sure how much electricity your home draws at once, a quick load calculation can help confirm the right configuration.

How long will a single battery last during backup?

A single 6kWh battery can power essential appliances, from your fridge to your Wi-Fi router, for up to 12 hours. You can add more batteries to extend runtime.

Is the system compatible with solar panels?

Absolutely. The inverter supports up to 10kW DC input (80–500V) from solar panels for direct charging and hybrid operation.

Can I install this system outdoors?

Yes. Both the inverter and batteries are built with durable enclosures for indoor or semi-outdoor installation, ideal for garages or covered setups.

Does it integrate with the EcoFlow Smart Home Panel 3?

Yes. The panel supports automatic backup switching from grid to backup power, and lets you control and prioritise up to 32 circuits from the EcoFlow app.

Manual

EcoFlow DELTA Pro Ultra X Whole-Home Backup Power Manual

Shipping & Easy Returns

Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.

Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.

Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

Why Buy From Us

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Guaranteed best prices. Find the same product for less elsewhere and we’ll match it.
30-day easy returns. If it is not the right fit, we’ll help you get it sent back.
A real person on the phone. Product questions, sizing, install planning, warranty help: call us at +1 (877) 556-3347.

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I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

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