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EcoFlow DELTA 3 Ultra Plus Portable Power Station | 3072Wh, 3600W

EcoFlow DELTA 3 Ultra Plus Portable Power Station | 3072Wh, 3600W
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$2,899.00
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$1,499.00
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Model: DELTA 3 Ultra Plus Only
3072Wh · 3600W Output · Expands to 11kWh · Home-Connect Ready

EcoFlow DELTA 3 Ultra Plus Portable Power Station (3072Wh)

The DELTA 3 Ultra Plus is where EcoFlow's portable line starts to behave like home backup equipment. It delivers 3600W continuous with a 7200W surge and X-Boost to 4600W — enough for a dryer, a lawnmower, or an electric frying pan — and unlike smaller units it can tie into your house through either a manual transfer switch or an inlet box rather than only powering what you plug directly into it.

Its 3072Wh battery expands to 11kWh, six charging methods are supported, and dual solar-plus-generator input takes it from 0–80% in 48 minutes. The cells are automotive-grade full-tab LFP in an EV-grade CTC structure with 24/7 BMS monitoring, which EcoFlow rates for around ten years of use. Renewable Outdoors is an authorized EcoFlow dealer — call us and we'll help you work out whether this tier or a DELTA Pro is the right fit.

EcoFlow DELTA 3 Ultra Plus Portable Power Station 3072Wh
Up to 5-Year Warranty
Lowest Price Guarantee
Authorized EcoFlow Dealer
Free Shipping
0% APR Financing
Expert Support: (303) 876-7654

Why the DELTA 3 Ultra Plus

3600W, 7200W Surge

Runs high-draw appliances a smaller unit can't — a dryer, a lawnmower, an electric frying pan — with X-Boost extending to 4600W.

Connects to Your House

Two integration options — a manual transfer switch or an inlet box — so it can back up real circuits instead of only what you plug in.

3kWh to 11kWh

Expandable from 3072Wh to 11kWh with extra batteries, and pairs with an EcoFlow Smart Generator that starts and stops itself.

0–80% in 48 Minutes

Six charging methods, and dual solar-plus-generator input at up to 3960W refills it from empty to 80% in under an hour.

EV-Grade Cell Structure

Automotive-grade full-tab LFP cells in an EV-grade CTC structure with 24/7 BMS — built to shrug off condensation and transport knocks.

OASIS 3.0 Smart App

Storm Guard pre-charges ahead of severe weather, while Self-Powered and Scheduled Task modes shift usage to cut your electricity bill.

Choose Your Configuration

Configuration What It Adds Why Choose It
DELTA 3 Ultra Plus Only The power station on its own You already own panels or a transfer switch, or you'll charge from AC and add pieces later
+ Transfer Switch (306A1, 125V 30A) A manual transfer switch Home backup — lets the unit feed real household circuits rather than extension cords. Needs a licensed electrician to install
+ 400W Solar Panel One 400W portable panel Off-grid recharging for camping and overlanding
+ 500W Solar Panel One 500W portable panel More solar for less money than the 400W bundle at current pricing — see the note below
+ Smart Extra Battery One DELTA 3 Max Plus Smart Extra Battery Multi-day outages — adds stored energy rather than recharge speed

Both solar options fit comfortably inside this unit's 1600W solar ceiling, so there's room to add panels later either way. The 500W panel gives you more capacity and a faster recharge; the 400W is smaller and lighter to move. Call us at (303) 876-7654 if you'd like a second opinion on which suits your setup.

What's Included

EcoFlow DELTA 3 Ultra Plus

In the Box

  • EcoFlow DELTA 3 Ultra Plus power station
  • AC charging cable
  • User manual
  • Warranty card

Bundle configurations add the transfer switch, solar panel, or extra battery you select, each with its own hardware and documentation. Solar panels require a solar charging cable — if you're using third-party panels, check with us that you have the correct MC4-to-XT60 cable.

DELTA 3 Ultra Plus Specifications

Rated Capacity 3072Wh (51.2V, 60Ah)
Cell Chemistry Automotive-grade full-tab LFP (LiFePO4) in EV-grade CTC structure
Expandable Capacity 3kWh to 11kWh with extra batteries
AC Output 120V, 60Hz, 3600W total (7200W surge); 4 × 20A ports, 1 × 30A port
X-Boost Output 4600W
USB-C Output 1 × 140W max (5/9/12/15V-3A, 20/28V-5A); 2 × 45W max per port (45W total)
USB-A Output 1 × 18W max (5V-3A / 9V-2A / 12V-1.5A)
DC / Car Output 12.6V-10A, 126W total; car port 10A max (shares power with the Anderson port)
AC Input (Charging) 100–120V, 15A, 50/60Hz
Max Solar Input 1600W
Charging Methods Six — wall, solar, car, alternator, generator, and dual-input combinations
Fast Charge 0–80% in 48 minutes using dual solar + generator input (up to 3960W)
Home Integration Manual transfer switch or inlet box
UPS Switchover Under 10ms
Noise Level ≤25dB at 600W
Expected Lifespan Approx. 10 years (EcoFlow internal simulation testing)
Charge Temperature 32°F to 113°F (0°C to 45°C)
Discharge Temperature 14°F to 113°F (−10°C to 45°C)
Storage Temperature 14°F to 113°F (−10°C to 45°C)
App Features OASIS 3.0 — Storm Guard, Self-Powered mode, Scheduled Tasks, Smart Output Priority
Communication Wi-Fi and Bluetooth
Dimensions (H×W×D) 24.1" × 12.9" × 15.6"
Weight ~74.3 lbs
SKU EFDELTA3UPLUS-US
Warranty 3-year standard, extended to 5 years free on registering the unit in the EcoFlow app

Worth reading the warranty row carefully: EcoFlow advertises "5-Year Warranty," but that's a 3-year standard warranty plus a 2-year extension you have to claim by registering the unit in the EcoFlow app. Registration is free and takes a couple of minutes — just don't skip it and assume you're covered for five years.

Documentation & Downloads

DELTA 3 Ultra Plus Manuals (EcoFlow)

Up to 5-Year Warranty

3 years as standard, extended to 5 free when you register the unit in the EcoFlow app.

Lowest Price Guarantee

Found it cheaper elsewhere? Call us at (303) 876-7654 before you buy.

Authorized EcoFlow Dealer

Genuine EcoFlow hardware, full manufacturer support, and honest sizing advice from our team.

EcoFlow DELTA 3 Ultra Plus: Frequently Asked Questions

Is the warranty really five years?
It's three years as standard, with a further two years added free when you register the unit in the EcoFlow app. Registration is quick and worth doing on day one — the extra two years aren't automatic, and it's the kind of thing that's easy to forget until you actually need a claim.
How is this different from the DELTA 3 Max Plus?
The Ultra Plus is the bigger unit: 3072Wh instead of 2048Wh, 3600W continuous instead of 3000W, X-Boost to 4600W instead of 3800W, and 1600W of solar input instead of 1000W. It also expands to 11kWh rather than 10kWh and adds a 30A output port. If your loads fit inside 3000W and you want something lighter to carry, the Max Plus is the better buy.
Can it back up circuits in my house?
Yes, and that's a real step up from smaller portables. It supports two home integration paths — a manual transfer switch or an inlet box — so it can feed selected household circuits. Either one has to be installed by a licensed electrician; the power station itself stays portable.
What can 3600W run?
At 3600W continuous with a 7200W surge, it handles an electric dryer, a lawnmower, an electric frying pan, or a table saw, and X-Boost pushes resistive loads to 4600W. Total simultaneous draw still has to stay within the rating, so it's one large appliance at a time plus your smaller loads.
How long does 3072Wh last?
Roughly 3072Wh divided by your load. A 150W fridge cycling at about 50% duty runs a day and a half; a 1500W space heater lasts around two hours. Expanding to 11kWh takes you into multi-day territory for essential loads.
How fast can I actually recharge it?
The headline figure — 0 to 80% in 48 minutes — needs dual solar plus generator input at up to 3960W. From a standard wall outlet it's considerably slower, since AC input is limited to 100–120V at 15A. Six charging methods are supported in total, including car and alternator.
What does Storm Guard do?
Storm Guard watches weather forecasts through the EcoFlow app and tops the battery up automatically before severe weather arrives, so you're not caught at 30% when the grid goes down. It's part of the OASIS 3.0 app alongside Self-Powered and Scheduled Task modes for trimming your electricity bill.
Can I use it as a UPS for a computer or NAS?
Yes. Switchover happens in under 10 milliseconds, which keeps desktops, network gear, and NAS servers running through a grid failure without rebooting or risking a dropped write.
How long will the battery last before it degrades?
EcoFlow estimates roughly ten years of use based on internal simulation testing, using automotive-grade full-tab LFP cells in an EV-grade CTC structure with round-the-clock BMS monitoring. For most households that means the unit comfortably outlasts several rounds of the devices plugged into it.
Do you offer financing or price matching?
Yes. We offer 0% APR financing options through Affirm at checkout, and every purchase is backed by our Lowest Price Guarantee — if you find a better price elsewhere, call us at (303) 876-7654 before you order.
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