Product images: Amazon listings

Champion 8,500W Dual Fuel Inverter Review

Name: Champion 8,500W Dual Fuel Inverter
Brand: Champion
SKU: B0C9KZPM6Y

7.8Very good · out of 10#3 of 5 in our Inverter Generators ranking

Written from the listing's specs, not from our own use · How we rate

We like the Champion 8,500W Dual Fuel Inverter for the mix: 7,000 running and 8,500 peak watts, the choice of gasoline or propane and an inverter engine that idles down at light load. One of our top 5 inverter generators, it is made for quiet nights during a long outage.

Price$1,799Price on Sep 30, 2026 · may have changed

Check the price on Amazon ↗Affiliate link · price and stock on Amazon

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Specifications

Brand	Champion
Category	Inverter generators
Running output	7000 W
Peak output	8500 W
Listed fuels	gasoline, propane
Stated runtime	Up to 14 hours
Stated noise	61 dB
CO sensor	Stated in the listing
Transfer switch ready	Stated in the listing
Outlets named in the listing	50 A (14-50R), L14-30R, GFCI household
Harmonic distortion	Under 3 % THD
Engine	420 cc
Stated warranty	3 years
ASIN	B0C9KZPM6Y

Full listing title: Champion 8500-Watt Electric Start Dual Fuel Portable Inverter Generator

Listing evidence

Running output	Exact listing
Peak output	Exact listing

Updated October 2026

Exact listing, ASIN B0C9KZPM6Y

Rating method published

Compared with its closest rivals

The two picks next to it in our inverter generators ranking, with their rating and a dated price.

Compare side by side ↗

Champion 8,500W Dual Fuel Inverter

7.8Very good · out of 10$1,799 Price on Sep 30, 2026 · may have changed

Stated: 7,000 W running · 8,500 W peak · Gasoline, Propane
Inverter generators

This product ↑

Champion 11,000W Dual Fuel Inverter

7.8Very good · out of 10$2,229.68 Price on Sep 30, 2026 · may have changed

Stated: 9,000 W running · 11,000 W peak · Gasoline, Propane
Inverter generators

See the review ↗

Westinghouse 12,000W Dual Fuel Inverter

7.8Very good · out of 10$1,899 Price on Sep 30, 2026 · may have changed

Stated: 9,000 W running · 12,000 W peak · Gasoline, Propane
Inverter generators

See the review ↗

7,000 running watts, 8,500 at start-up

That's the running figure the listing states, on gasoline. Write down what you'd run on a stormy night and add the biggest motor's surge: the fridge, the freezer and the sump pump fit inside that figure on paper, a 240 V well pump plus central air don't.

Why it made our list

What changes on the night the power goes out

Gasoline or propane. Propane keeps for years in a sealed tank and won't gum up the carburetor between storms; gasoline gives you more watts. Propane is rated lower, so find that figure in the manual.

Inverter, under 3 % THD. The engine speeds up and slows down with the load, so it is quieter and thriftier at 3 a.m. when only the fridge and a lamp are on. The clean sine wave is kinder to laptops, TVs and the furnace control board.

Extension cords or a transfer switch?

Extension cords: the cheapest start. The fridge, the freezer and a lamp plug into the 120 V outlets (GFCI-protected, per the listing); the furnace, the well pump and the water heater stay dark.

A transfer switch: the listing names an L14-30R twist-lock and a 50 amp outlet. An inlet box on the outside wall takes that plug, and an electrician wires it to a transfer switch or an interlock. After that, the furnace and the well pump run off the generator as well; the electrician's bill comes on top.

Great for you if…

You'd rather store propane tanks than cans of gas
Laptops, TVs or a furnace board will be plugged in
You plan a transfer switch, or you own a 50 amp RV

Skip it if…

You simply want our top pick: that's the Westinghouse 5,000W Dual Fuel Inverter (9.2/10)
You'd rather wait for buyer reviews: none are captured for this listing yet

Outlets, fuel and what's in the box

What the Champion 8,500W Dual Fuel Inverter listing names:

7,000 running watts, 8,500 peak
Runs on gasoline and propane
Outlets named: 50 amp, L14-30R, GFCI 120 V
Electric start
CO sensor
61 dB, per the listing
420 cc engine
Under 3% THD

Warranty & support: A 3-year warranty, as stated in the listing.

That is the maker's promise, not ours. Keep the order confirmation, and register the Champion 8,500W Dual Fuel Inverter if the maker asks you to.

Read the manual for the fuel, the oil grade and what each outlet is rated for before the first start.

Champion 8,500W Dual Fuel Inverter, view 3

Price and cost per 1,000 running watts

$1,799 Price on Sep 30, 2026 · may have changed

At the price on Sep 30, 2026, each 1,000 running watts works out at about $257.00 (price ÷ stated running watts, our arithmetic). That puts it in the pricier third of the 18 generators of 4,000 to 8,000 running watts we have a price and a stated running figure for.

The online price is the generator alone: the cord, the inlet box and the electrician who wires the transfer switch or interlock come on top.

The button opens the exact listing (ASIN B0C9KZPM6Y), where today's price, stock and seller apply.

Champion 8,500W Dual Fuel Inverter, view 4

A better fit for your load list?

Want to hook it to the gas line? The Champion 8,125W Tri Fuel (7.6/10) runs on gasoline, propane and natural gas.

Want a CO shutoff? The WEN DF8000X (7.5/10) names a CO sensor that shuts the engine off.

Well pump or central air on the list? The DuroMax XP13000EH (9.3/10) is rated 10,500 running watts.

Our take

The verdict

The Champion 8,500W Dual Fuel Inverter earns its place with 7,000 running and 8,500 peak watts and the choice of gasoline or propane. No buyer reviews yet, so the Champion 8,500W Dual Fuel Inverter has to win you over on paper. The catch with this Champion inverter generator: no word on the propane rating. We'd pick it if you'd rather store propane tanks than cans of gas; otherwise, put it next to the Champion 11,000W Dual Fuel Inverter first.

Check the price on Amazon ↗Affiliate link · price and stock on AmazonSee the inverter generators ranking →

Living with it

Delivery day

Fill it with oil before the first start, then run it for a few minutes outside with a small load.

The first outage

Push the start button, let it warm up, then add loads one at a time, the biggest motor first. Propane or gas: decide before the storm and have the hose and the tank ready. The 14 hours on the listing are at a light load; plan a refill at night.

Between storms

Run it every month or so for 20 minutes and keep the battery charged. On propane you avoid stale gas in the carburetor; on gas, add stabiliser or run it dry before storage. Our maintenance schedule has the full list.

Upkeep

First oil change after the break-in hours in the manual (the hour meter counts them), then on schedule. Air filter and spark plug once a season, and a cover for the months it sits.

The one thing we'd check first

Before you order the Champion 8,500W Dual Fuel Inverter, check your load list: 7,000 running watts (8,500 at start-up) have to cover everything you run at once, motor surges included.

Before you buy

Your load list

Read the label on each appliance (or the manual) for its running watts, and note which ones have a motor. Our running vs starting watts guide explains why the motor ones need the extra surge.

How it reaches the house

It has a 50 amp outlet, which still needs an inlet box and a transfer switch or interlock installed by an electrician. Our transfer switch guide explains the options.

Where it will run

Outside only, about 20 ft from doors, windows and vents, exhaust pointing away (the CO sensor is a backup, not a permission). Pick the spot now, before the storm. Our CO safety and placement guide has the details.

Fuel for three days

Gasoline goes stale in a few months without stabiliser; propane keeps. Check the propane rating in the manual if propane is your plan. Our fuel storage guide covers storage.

How it compares

How the Champion 8,500W Dual Fuel Inverter stacks up against the closest alternative in our ranking, the Champion 11,000W Dual Fuel Inverter.

Criterion	Champion 8,500W Dual Fuel Inverter	Champion 11,000W Dual Fuel Inverter
Our rating	7.8/10	7.8/10
Running watts	7,000 W	9,000 W
Peak watts	8,500 W	11,000 W
50 amp outlet	Stated	Not stated
Runtime	14 h	15 h

Both score 7.8/10. The Champion 11,000W Dual Fuel Inverter adds more running watts (9,000 W) and a higher peak (11,000 W), while the Champion 8,500W Dual Fuel Inverter brings a 50 amp outlet.

Compare side by side ↗See the Champion 11,000W Dual Fuel Inverter review →

The score in detail

How we rated it

Our score: 7.8/10

Key specifications

8 / 10

Build, warranty & certifications

8 / 10

Listing documentation

9 / 10

Fit & compatibility

8 / 10

This product has no captured buyer-review record yet, so its rating comes from the documented listing alone: four criteria scored out of 10 (key specifications; build, warranty and certifications; listing documentation; fit and compatibility), placed on a 4.5–8.5 scale. Read the full methodology.

Read the methodology →

Frequently asked questions

Is the Champion 8,500W Dual Fuel Inverter any good?

We rate it 7.8/10 (very good), #3 of 5 in our inverter generator ranking. The rating comes from its documented listing alone, as no customer-review record is captured yet.

How many watts does the Champion 8,500W Dual Fuel Inverter deliver?

The listing or manual states 7,000 W running and 8,500 W peak, usually for gasoline. Size your load list against the running watts and keep the peak for motor starts; propane and natural gas ratings are lower. These are the seller's figures, not our measurements (our sizing calculator turns your loads into a running and peak pair).

Which fuels does the Champion 8,500W Dual Fuel Inverter run on?

The listing names gasoline and propane. Output differs by fuel, so check the per-fuel running watts in the manual and whether the hoses you need come in the box. Run it outdoors only, away from doors, windows and vents.

What do you get with the Champion 8,500W Dual Fuel Inverter?

Its listing states 7,000 running watts (8,500 at start-up), the choice of gasoline or propane, inverter power under 3 % THD, a 50 amp outlet for an inlet box or an RV, a built-in CO sensor and push-button electric start. These are the seller's figures, not our measurements: how loud it is in your driveway and how it handles your well pump's surge can't be read from a listing.

What should I check before ordering the Champion 8,500W Dual Fuel Inverter?

Your load list: read the label on each appliance (or the manual) for its running watts, and note which ones have a motor. Our running vs starting watts guide explains why the motor ones need the extra surge. How it reaches the house: it has a 50 amp outlet, which still needs an inlet box and a transfer switch or interlock installed by an electrician. Our transfer switch guide explains the options. Where it will run: outside only, about 20 ft from doors, windows and vents, exhaust pointing away (the CO sensor is a backup, not a permission). Pick the spot now, before the storm. Our CO safety and placement guide has the details. Fuel for three days: gasoline goes stale in a few months without stabiliser; propane keeps. Check the propane rating in the manual if propane is your plan. Our fuel storage guide covers storage.

Where can I buy the Champion 8,500W Dual Fuel Inverter?

We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.

Have you used the Champion 8,500W Dual Fuel Inverter yourselves?

No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula, plus our editors' read of how it compares with its rivals.

Keep comparing

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