Prime Day Extended Sale at EcoFlow US: Oct 11–18 (per EcoFlow’s site)
Independent buying guide · US homeowners

When the Grid Goes Down, Keep Your Home Running.

No gas. No fumes. No noise. A plain-English guide to EcoFlow power stations: which one fits your home, and how they handle 120V and 240V loads.

EcoFlow DELTA Pro 3 portable power station
Shop NowNot sure which size? Find yours ↓
  • Free shipping*
  • Up to 30-day returns
  • PayPal & Affirm installments

*Per EcoFlow US store; not available to Alaska, Hawaii or Puerto Rico. Installments subject to approval.

  • 120V + 240V output on DELTA Pro 3, up to 4,000W in one unit (per EcoFlow).
  • UL 9540-certified home-battery models: DELTA Pro 3 and DELTA Pro Ultra (per EcoFlow’s listings).
  • No gasoline, no exhaust, no pull-cord. Recharge from the wall or solar.
UL 9540 listingsDELTA Pro 3 & Pro Ultra (Pro Ultra: UL 1973 + UL 9540), per EcoFlow
Free shipping*Orders ship within 3–5 business days
Up to 30-day returnsFrom the day you receive the product
Pay over timePayPal & Affirm installment options
Before you buy

5 worries that make people hesitate, answered straight

Backup power is a big purchase. These are the questions buyers ask most, answered without hype.

“It costs way more than a gas generator.”

True up front: gas units are cheaper to buy. The trade-off is what comes after: fuel to buy and store, oil and spark-plug upkeep, and running an engine outdoors in bad weather.

Installments (PayPal / Affirm) and EcoFlow’s current sale can soften the entry price.

“Will it run my 240V appliances?”

DELTA Pro 3 offers both 120V and 240V outputs, up to 4,000W in one unit (per EcoFlow). Whether it runs a specific central A/C or well pump depends on its running and startup watts.

Use EcoFlow’s Help Me Choose calculator and check your appliance label.

“Is a big lithium battery safe in my house?”

EcoFlow lists DELTA Pro 3 and DELTA Pro Ultra as UL 9540 certified, a standard for energy storage systems. The unit burns no fuel, so there is no exhaust.

Certification is not a guarantee: follow the manual, keep vents clear, and install to local code.

“What if I need support?”

Read the terms on EcoFlow’s warranty page before you buy and keep your order records. EcoFlow lists email, phone and 24-hour online support.

“There are too many models.”

Start from what you need to power, not the product name. The size guide below matches four common needs to a model in about a minute.

Jump to the size guide ↓

The lineup

Four EcoFlow models, matched to real situations

Specs and prices come from EcoFlow’s US store listings on Oct 13, 2026.

Swipe to compare →

EcoFlow DELTA 3 Classic portable power station
GRAB-AND-GO

DELTA 3 Classic

  • 1,024Wh · 1,800W output
  • 0–80% in about 45 min on AC (per EcoFlow)
  • Lights, Wi-Fi, laptops, small appliances
$599 $499
Shop Now
EcoFlow DELTA 3 Max Plus portable power station
CAMP, RV & JOBSITE

DELTA 3 Max Plus

  • 2,048Wh · 3,000W (6,000W surge)
  • X-Boost mode for loads up to 3,800W
  • Coffee maker, fridge, power tools
$1,599 $1,149
Shop Now
EcoFlow DELTA Pro 3 portable power station
HOME BACKUP

DELTA Pro 3

  • 4–48kWh expandable · up to 4,000W
  • 120V and 240V outputs
  • UL 9540 certificated (per EcoFlow)
$3,299 $2,799
Shop Now
EcoFlow DELTA Pro Ultra whole-home backup power system
WHOLE-HOME

DELTA Pro Ultra

  • 6–90kWh · 7.2–21.6kW output
  • UL 1973 and UL 9540 (per EcoFlow)
  • Built for heavy 240V household loads
$5,799 $4,199
Shop Now
What you actually get

The payoff: calm, freedom, and fewer surprises

Peace of mind when storms hit

Keep the fridge, lights, router and phones going through an outage, quietly and without fumes, so you are not out in the rain refueling an engine.

Camp and travel on your terms

Brew coffee, charge e-bikes and run gear at a campsite without a loud generator. EcoFlow also sells an 800W Alternator Charger to recharge from your vehicle (check compatibility).

Less dependence on the grid

Pair a station with solar panels to recharge without fuel. How much you save depends on your rates, sunlight and setup, so treat savings as case-by-case.

Stay connected and working

Keep a router, laptop and monitors powered through short outages so a blackout does not end your workday.

Who it fits

Which type of buyer are you?

Suburban family protecting the home

Hurricane, winter-freeze or wildfire-shutoff zones. Think fridge, freezer, sump pump, internet and some heating or cooling.

Look at: DELTA Pro 3, or DELTA Pro Ultra for heavier whole-home loads.

Off-grid prepper or homesteader

You want long runtime and room to grow, plus solar recharging.

Look at: DELTA Pro Ultra, expandable up to 90kWh, with solar panels.

Overlander, RVer, camper

You want quiet power at camp and fast top-ups on the road.

Look at: DELTA 3 Max Plus plus the 800W Alternator Charger.

Remote worker or home-health household

You need steady power for work gear and household essentials during short outages.

Look at: DELTA 3 Classic or DELTA 3 Max Plus for essentials; DELTA Pro 3 for longer runtime.

Medical note: a power station is not a medical device. Ask your doctor and the device maker before relying on any backup for CPAP, oxygen or other life-support equipment.
Size guide

Which size do I need?

A rough guide. Always compare your appliances’ running and startup watts with the station’s output.

Essentials onlyLights, Wi-Fi, laptops, phones: DELTA 3 Classic
Campsite, RV, jobsiteCoffee maker, fridge, power tools: DELTA 3 Max Plus
Emergency home backupIncluding 240V appliances: DELTA Pro 3
Heavy whole-home loadsAnd long outages: DELTA Pro Ultra

Open EcoFlow’s Help Me Choose

Fair comparison

Battery station vs. gas generator vs. standby generator

No option wins everywhere. Here is how they trade off.

Battery power station (e.g., EcoFlow)Portable gas generatorStandby (whole-home) generator
FuelStored electricity; recharge from wall or solarGasoline to buy, store and rotateNatural gas or propane supply
ExhaustNone from the unitCarbon monoxide: run outdoors, away from windowsExhaust outdoors, permanent install
NoiseMostly fan noiseEngine noiseEngine noise
UpkeepMinimalOil, spark plugs, fuel carePeriodic service
RuntimeLimited by battery size (expandable on some models)As long as you have fuelAs long as the fuel supply lasts
Upfront costMedium to highLowestHighest (installed)
SetupPlug in; electrician for home integrationPlug in or interlock kitProfessional installation
What EcoFlow US lists

Shipping, returns and payment options

Free shipping

Listed as free for all orders, except Alaska, Hawaii and Puerto Rico. Orders are processed within 3–5 business days.

Up to 30-day returns

Request a return within 30 days of receiving the product, per EcoFlow US.

Installments & warranty

Interest-free installment options via PayPal and Affirm (subject to approval). Warranty terms are on EcoFlow’s warranty page.

Verified on us.ecoflow.com on Oct 13, 2026. Terms can change; confirm at checkout.

FAQ

Quick answers

Do I need an electrician?

Not to plug appliances directly into the station. Connecting it to your home’s wiring (for example through a generator inlet, transfer switch or a smart home panel) should be done by a licensed electrician and follow local code.

Can it run my central air conditioner or well pump?

It depends on the model and the appliance’s running and startup power. Check the label on your equipment and use EcoFlow’s Help Me Choose calculator before buying.

Is it safe to use indoors?

A battery station produces no exhaust, unlike a gas engine. EcoFlow lists DELTA Pro 3 and DELTA Pro Ultra as UL 9540 certified. Still follow the manual for placement, ventilation and temperature limits.

How long will it power my fridge or home?

Runtime equals battery capacity divided by your load. A bigger load drains it faster. Expandable models such as DELTA Pro 3 and DELTA Pro Ultra let you add batteries for longer runtime.

Can I recharge it with solar?

Yes, EcoFlow sells compatible solar panels. Charging speed depends on panel wattage, sunlight and the model’s solar input limits.

Is this the official EcoFlow website?

No. ItemVerdict is an independent publisher. Purchases happen on EcoFlow’s own US store.

Are the prices guaranteed?

No. Prices come from EcoFlow’s store on Oct 13, 2026 and can change. The final price at checkout is what counts.

Ready to see today’s price?

Check current pricing, sale status and availability on EcoFlow’s US store. The Prime Day Extended Sale is listed through Oct 18.

Shop Now at EcoFlow US

Up to 30-day returns · Free shipping* · Installments via PayPal & Affirm

EcoFlow sale ends Oct 18
Prices checked Oct 13Shop Now