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Save $100 on $2000+ Orders with code SAVE100L&C - Christmas Sale Ending in 48hrs | Hundreds of Top-Rated Reviews | Speak With An Expert 854-777-0909 (Mon-Fri 9a-5p CST)
Save $100 on $2000+ Orders with code SAVE100L&C - Christmas Sale Ending in 48hrs | Hundreds of Top-Rated Reviews | Speak With An Expert 854-777-0909 (Mon-Fri 9a-5p CST)

EcoFlow Delta Pro ULTRA Portable Power Station

Save $1,948.00 Save $1,948.00
Original price $19,947.00
Original price $3,445.00 - Original price $19,947.00
Original price $19,947.00
Current price $17,999.00
$2,799.00 - $17,999.00
Current price $17,999.00

EcoFlow Delta Pro ULTRA Portable Power Station

What Do You Do When the Power Goes Out?

When food spoils, cell phones die, and the garage door is stuck halfway up. When frozen pipes burst or an unpowered sump pump floods the basement.
These disasters wreck your home and your finances. (Not to mention the added stress on you and your family.)

It gets worse. Outages in the United States are on the rise.
If you want to protect your home, now is the time to prepare with EcoFlow’s most powerful whole home backup system- the Delta Pro Ultra.

Key Features

  • Powerful Whole-House Backup
  • 6kWh to 90kWh Expandable Capacity
  • 7.2kW-21.6kW Output
  • 5.6kW-16.8kW Solar Input
  • 0-ms Downtime UPS
  • 0 dB Silent Backup
  • Smart App Control
  • Long Lasting LFP Battery
  • Auto-Switchover, Prolonged Backup, and Energy Bill Savings when used with EcoFlow Smart Home Panel 2
  • BONUS: This purchase qualifies for a 30% Solar Tax Credit.

One Unit Runs Your Entire Home

A single Delta Pro Ultra inverter and battery have a 6kWh capacity and a 7.2kW output. Enough to run your entire home. Even its most power-demanding appliances (like a 3-ton central air conditioner). Now for the first time ever, your home runs in all its modern comforts as power outages go unnoticed.

EcoFLow delta pro ultra total home backup for emergencies

Power, Your Way 

Emergencies are extremely unpredictable. And government response times can't be counted on. You need the ability to recharge by any means necessary. The Delta Pro Ultra gives you the flexibility to power up with solar panels, AC power, a gas generator, or an EV charger. It features flexible power options for inputs and outputs including a 30-amp socket, 4 AC outlets, 2 USB ports, an Anderson port, an EV charging port, and high/low PV solar inputs.

Easy Plug-n-Play Setup

This is not your grandpa’s generator. No more confusion about where to operate it. No more running outside in the middle of a storm for difficult set ups. Just plug it in to your home's generator inlet, transfer switch, or install the Smart Home Panel 2 to enjoy reliable power security. Don't have those things installed? Reach out to our customer support team via phone, email, or chat and we can arrange professional certified electrician white glove installation.

Worried About Extended Blackouts?

Keep your whole house powered up for over 30 days on one charge when you connect 3 Delta Pro Ultra inverters and 15 batteries through the EcoFlow Smart Home Panel 2. This unlocks the Ultra's full expansion capacity of 90kWh in a sleek space-saving and stackable design. 

EcoFlow stackable Delta Pro Ultra expandable capacity

Stop Relying on an Aging Grid

The EcoFlow Delta Pro Ultra sets a new standard in solar charging with a 5.6kW input (that increases to a huge 16.8kW input when you connect three inverters through the Smart Home Panel 2). One hour of solar is enough to power your home for an entire day.

Imagine You Never Run Out of Power Again

You won't even notice the power went down with 0-ms downtime UPS and 0 dB silent backup. Security cameras, computer servers, fish tank heaters, CPAP machines, and more. All your crucial electronics stay connected around the clock with EcoFlow Delta Pro Ultra's online uninterrupted power supply.

Say goodbye to emergency power outages with the EcoFlow Delta Pro Ultra.

For Powerful Home Backup, Order the EcoFlow Delta Pro Ultra Today.

Your home needs are specific. And you may need a different bundle.
We're here and happy to help.
Call us M-F 9a-5p CST for installation help or to set up a bundle that's built for you.

854-777-0909 (or email us at
sales@lakehouseandcottage.com)

Product Specifications

 Specs Delta Pro ULTRA
Net Weight 186.4 lbs (Inverter: 70 lbs / Battery: 116.4 lbs)
Dimensions Inverter: 27.2"×18.9"x8.4" Battery: 26"×18"×8"
Capacity
6000 Wh
Charge Methods AC Wall Outlet, Solar Panel, Gas Generator, EV Pile
Extra Battery

Supports up to two DELTA Pro Smart Extra Battery/Smart Generator

Life Span 10 years - 6,500 cycles to 50% capacity, 3,500 cycles to 80% capacity
Battery Chemistry  LFP
Connection WiFi/Bluetooth

Power Input /

Output Port


120V/240V

30A

3600W Max / 7200W Max

AC Outlets

120V/240V, total 7200W

AC Charging Input Port

120V/240V

15A/12.5A

1800W Max / 3000W Max

Operating Temperature

-4°F-113°F

EcoFlow Delta Pro Ultra

  • Powerful Performance: With an impressive 7.2kW-21.6kW output, the EcoFlow Delta Pro Ultra effortlessly runs all your power-demanding household items, including a 3-ton central air conditioner.

  • Huge Expandable Capacity: Start small and expand as you go. A single battery and inverter has a 6kWh battery capacity. Connect up to 3 inverters and 15 batteries through the Smart Home Panel 2 for a 90kWh capacity. That's month-long power security for your entire home.

  • Solar Independence: With a 5.6kW-16.8kW solar input, the Delta Pro Ultra uses High and Low-PV technologies for quick and efficient solar charging. Achieve a full day's home energy in just 60 minutes.

  • Flexible Charging Options: Charge up using a gas generator, your EV charging pile, or traditional methods like solar and AC power. Enjoy the industry's fastest charging speeds of 8800W, topping up two batteries in only 2 hours.

  • Silent Backup: With a 0-ms transfer time online UPS, the Delta Pro Ultra ensures uninterrupted power flow. For power draws under 2000W, it's completely silent for up to 30 minutes.

  • Built Tough: Designed to handle challenging conditions. It operates in temperatures ranging from -4℉ to 113℉, with high voltage tolerance and IP54 dustproof and splash-proof features.

  • Plug-and-Play: Whatever your setup, the Delta Pro Ultra's flexible plug-and-play design lets you customize your energy solution to fit your needs.

  • In the Box: Inverter Box- Delta Pro Ultra Inverter, EcoFlow portable stand, EcoFlow disassembly and assembly tool, EcoFlow Solar to Low-PV port charging cable, EcoFlow AC charging cable-C20, Warranty card, Quick Start Guide. Battery Box- EcoFlow Delta Pro Ultra Battery, EcoFlow Battery Connection Cable, Safety Guide.

  • 5 Years of Coverage: A worry-free 5-year warranty from EcoFlow and friendly customer service for all your needs. 

FAQ

Is Delta Pro Ultra Battery compatible with other third-party inverters?

The EcoFlow Delta Pro Ultra battery packs are not compatible with third-party inverters.

Can I set the Delta Pro Ultra to run at certain times, like during peak rate hours?

Yes, you can set charging times to get the best time-of-use rates and save on your energy bills. 

Can you run the Delta Pro Ultra without the EcoFlow app?

You can use the EcoFlow Delta Pro Ultra without the App, but it is recommended for ease and convenience. 

Can you do AC passthrough with a 120V input?

Yes, you can use the C20 outlet for a bypass mode with a 120V input. However, with 240V input there is no bypass mode.

How high is the EcoFlow Delta Pro Ultra's surge rating? How long does it last?

LRA 120A; 10.8kW peak watts for 10 seconds.

Can I plug appliances and devices straight into the EcoFlow Delta Pro Ultra?

You can! The EcoFlow Delta Pro Ultra (Inverter + Battery) works as a standalone unit to power your electrical appliances and devices up to 7200W. There are 11 different outlets on the inverter. These include: NEMA 5-20, TT30, L14-30 supporting 30A, USB-C, and USB-A.

How long does it take to charge a single battery?

With one battery pack, the fastest charging input is 6200W. Which takes about 90 minutes to charge from 0% to 100%. If you have two battery packs, the fastest charging input is 8800W, and it takes about 1 hour and 56 minutes to charge from 0% to 100%.

Can the EcoFlow Delta Pro Ultra run a several-ton central air conditioner?

You bet. Just one EcoFlow Delta Pro Ultra can power a 3-ton central air conditioning unit. With two Delta Pro Ultras, you can power two 4-ton central air conditioning units, and three Delta Pro Ultras (hooked up through the Smart Home Panel 2) can run three 4-ton central air conditioning units, but keep in mind the LRA rating has to be within 120A.

Can you use X-Fusion to charge the EcoFlow Delta Pro Ultra from an AC outlet while it's also plugged into the Smart Home Panel 2?

X-Fusion technology ensures all AC outputs provide the best output in terms of wattage and amps. In fast charge mode, the output will always be 7.2kW, no matter how much the input is.

When the EcoFlow Delta Pro Ultra is connected to Smart Home Panel 2, AC charging is disabled.

Can the EcoFlow Delta Pro Ultra charge from a 15A AC outlet while also delivering 240V?

When charging the EcoFlow Delta Pro Ultra with 120V, it outputs 240V without change. If you are charging the EcoFlow Delta Pro Ultra with 240V, it does not output 240V. When charging at 240V using X-Stream charging via an AC inlet, AC output is not available. So, when charging with high voltage 240V input voltage, all the AC output is unavailable.

Videos and PDFs


Warranty

Note that warranty periods might differ due to local laws and regulations. In some places, limitations on implied warranty duration may not apply to you. Your rights can vary based on your state, province, or country.

Please read the warranty terms before using your products. All EcoFlow items purchased on lakehouseandcottage.com have a limited warranty through EcoFlow, detailed below. By using EcoFlow products, you agree to adhere to the terms of the EcoFlow limited warranty.

The limited warranty for purchases on lakehouseandcottage.com initiates when the original purchaser receives the products.

Item Warranty Period

Delta Pro Ultra Inverter

Delta Pro Ultra Battery

5 years


This warranty does not cover:

  • Issues not related to quality.
  • Items bought from places other than lakehouseandcottage.com.
  • Purchases lacking valid proof of purchase.
  • Items that have been refunded.
  • Items past their warranty period.
  • Defects or damages due to misuse, unauthorized modification, disassembly, or improper operation as per official instructions or manuals.
  • Defects or damages due to exposure to extreme heat, liquids, or other external factors.
  • Defects or damages due to compatibility issues from using unauthorized third-party parts.
  • Lost or stolen products.
  • Free products.

Valid Proof of Purchase

  • A purchase order number made through lakehouseandcottage.com;
  • Order confirmation email or invoice that clearly states the description of the product, its price, and where it was purchased.

    Warranty Return Authorization Process

    • Contact Lakehouse & Cottage Customer Service Team at sales@lakehouseandcottage.com or 854-777-0909.
    • If your item is eligible for an EcoFlow Warranty, you will receive a prepaid shipping label. Please follow the instructions provided by Lakehouse & Cottage Support to pack the products and safely return them.
    • Please note that we can only provide return shipping labels for return packages in United States.

    Replacements

    Should a replacement be necessary, the delivery of the replacement item will be coordinated within 15 business days (subject to adjustments due to unforeseen circumstances) after confirming receipt of the defective item at our warehouse. The ultimate resolution depends on the availability of replacement items.

    The replacement warranty will extend for a period equivalent to the remaining warranty duration of the original item.

    Shipping

    Processing Times

    All orders are typically processed within 1-2 business days.

    Product ETA is 5-7 business days.

    Please note, we do not process shipments on weekends or public holidays. During high order volumes, there may be a slight delay; please allow extra transit time. If a significant shipping delay occurs, we'll notify you via email you provided.

    Shipping Carriers

    Lakehouse & Cottage uses USPS, FedEx, and UPS delivery services.

    We offer FREE Shipping on all our products. 

    Available Shipping Areas

    Orders are shipped within the contiguous United States, excluding outlying islands and overseas territories.

    Shipping Information Responsibility

    Ensure accurate shipping details when placing an order. We're not liable for losses due to incorrect shipping information.

    P.O. Box or APO/FPO/DPO addresses are not accepted.

    Shipping Tracking Information

    You will receive shipment confirmation and tracking information via email. 

    You will receive confirmation once your order has been received and is being prepared to ship.

    After your order has been packaged, tracking will be added and sent to you. You will receive tracking information to the email address you provided.

    Check the Status of Your Order

    Your confirmation email will have a link to check the status of your order. 

    You will also receive notifications when your order ships with tracking information provided through the shipping carrier.

    For additional help checking the status of your order or if you have not received your confirmation email within 48hrs, please contact us at sales@lakehouseandcottage.com

    Damaged or Missing Items

    Report any damage or missing packages within 7 business days to sales@lakehouseandcottage.com. While we don't assume responsibility for shipping carrier errors, we'll assist in contacting them and making things right. Keep packaging and damaged items for potential claims.

    Refunds and Returns

    We know you'll love your order! But just in case you're not fully satisfied, we've streamlined an easy return process.

    Cancellation

    You can request a full refund within 24 hours of placing your order on lakehouseandcottage.com. However, a transaction fee will apply if you request a refund after 24 hours but before delivery (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users, 3.3% for Klarna users). Orders can't be canceled more than 30 days after shipment.

    Returns

    Our return service currently applies to US orders only. If you're unsatisfied, you can return items in their original packaging within 30 days for an exchange or refund. However, after 30 days, refunds or exchanges aren't possible.

    For quality issues, we offer a full refund or one-time free replacement within 30 days of receiving the items. Contact our support team via sales@lakehouseandcottage.com for return instructions after collecting the shipped package. Please note, refusing shipments may incur a double shipping fee deduction.

    Return Process

    Initiate returns by contacting Lakehouse & Cottage Support at sales@lakehouseandcottage.com with proof of purchase. We'll provide instructions for packaging and returning the products. Ensure all components are included.

    Refund

    After returning the product to our warehouse, expect a refund within 14 business days. You'll receive an email notification upon refund processing. If the refund isn't received after 14 business days, contact us at sales@lakehouseandcottage.com.

    Return Shipping Cost

    For returns on US orders, a shipping fee and a transaction fee (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users) apply.

    Product Shipping Cost
    Delta Pro Ultra Inverter $58
    Delta Pro Ultra Battery $71

     

    Please note that return shipping costs include shipping costs and handling fees.

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    Customer Reviews

    Based on 7 reviews
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    J
    Joe S.
    makes me money (powering my crypto mine), heats my house, and does it all for free (yay solar)

    EcoFlow says you can actually get solar input from two different solar arrays on the Delta Pro Ultra. So that's what I tested out. I set up 10 panels on my tmeporary stand to run the delta pro ultra and then I set up three panels for the low voltage input. Those three got me 1200W and then the big array got me 4000W. You can see that we have registered solar input on both the high and low voltage so it does recognize both the setups through both input ports at the same time.
    I'm a cyrpto miner so I really wanted to see if this could handle recharging and powering enough in a single day to power my crypto mine, which uses about the same heavy load as an airconditioner actually. I use about 238 volts and 13 amps which is the same as 3100W and I brought in about 4200 or 4300W from the solar with the delta pro ultra so I completely offset it
    There were a few hiccups when I first got my unit. I couldn't get good solar input and it would only let in like 750W. But there was a firmware update and so now everything is working like it should.
    The only downside to this delta pro setup is that I don't have enough battery to run through the whole night and then be able to recharge in a single day while still running my crypto mine of 3300W. It is enough to heat my house though and run like four space heaters and things like that. I know they have the expandable battery options with this and I just have one for now.
    Shipping was fast and I got an awesome BOGO deal with Lakehouse & Cottage so I might come back for more batteries at some point.

    A
    A.G.
    more power solar power

    As you can see in the app my ecoflow ultra was making about five 500-600 watts of solar input using four solar panels. It's not a lot, but there were a lot of clouds in the sky. The main thing that I wanted to show is that the high voltage input does work on the Delta Pro Ultra to get over 150 volts of solar input. I also have the high voltage solar coming in to test the solar input and wall ac at the same time. On the app it shows the high voltage solar input as well as the AC to charge the batteries at the same time. I was getting 340 watts or so on solar about 1.8 kw of power on AC for a total of 2.12 KW. The app is handy for measuring and the solar charges fast on a clear day. It's a good system so far. Will update as time goes on.

    A
    Anna

    Tested this out during some winter storms. Happy to say the UPS worked like a charm. We checked the app before the power went out and it even showed the unit preparing for the storm ahead of tiime. That was cool! Made dealing with blackouts so much less of a headache with a husband and three kids to worry about instead of fussing over power and flashlights.

    S
    Sylvester
    Just Plugs Right In

    really like the way this is easy to use. the look put me off at first, but when it's in the back room and powering the house it really doens't matter. Great service from L&C

    K
    Katrina

    I wanted to be able to charge the my camper via solar, ev chargers in the city and shore power. The 30A socket makes this easy on the go. We just did our first road trip with it and have no complaints! Excited to see about possibly hooking it up to the house too, but not sure if we'll go that far.