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Generac GP6500E Portable Generator vs Champion 6500-Watt Inverter Generator

The Champion is the better buy for most shoppers. It makes cleaner power (under 3% THD) for electronics, runs quieter at 64 dB(A), and has CO Shield to shut down on dangerous carbon monoxide. The Generac GP6500E makes more running watts (6500 vs 5000) and starts big loads with PowerRush, so it suits heavy tools and home backup where noise and sensitive electronics matter less. Owners rate the Champion highly, and its inverter design and safety features are the stronger package for RV, camping and home-essentials use.

  • Choose the Generac GP6500E if you need maximum running watts for power tools, a well pump or a whole-circuit home backup, and you don't mind a conventional generator's louder, dirtier output.
  • Choose the Champion 6500-Watt Inverter if you want quiet, clean power for an RV, campsite or sensitive electronics, plus CO Shield safety and long run times.

Prices

  • Generac GP6500E Portable Generator: $899.00 at The Home Depot (last seen Nov 4)
  • Champion 6500-Watt Inverter Generator: $999.00 at Walmart (last seen Nov 8)
  • Difference: the Generac GP6500E Portable Generator is $100.00 cheaper than the Champion 6500-Watt Inverter Generator at the latest prices (Nov 4 and Nov 8)
Generac
Generac GP6500E Portable Generator

Generac GP6500E Portable Generator

$899.00at The Home DepotObserved Nov 4, 2026, 8:08 AM
See all prices and details
Visit The Home Depot
Pros
  • 6500 running watts handles heavy tools and home circuits
  • PowerRush adds over 40% starting capacity for big motor loads
  • Electric start with recoil backup and battery included
  • AVR and low-oil shutdown protect the engine and connected loads
Cons
  • Louder conventional open-frame design
  • Output is not clean enough for sensitive electronics
  • Shorter run time at comparable load
  • Heavier at 182 lbs
Champion Power Equipment
Champion 6500-Watt RV Ready Portable Inverter Generator with Quiet Technology and CO Shield

Champion 6500-Watt Inverter Generator

Champion 6500-Watt RV Ready Portable Inverter Generator with Quiet Technology and CO Shield

4.9(113 ratings)
$999.00at WalmartObserved at 9:58 PM
See all prices and details
Visit Walmart
Pros
  • Clean inverter power under 3% THD
  • Quiet at 64 dB(A) from 23 feet
  • CO Shield carbon monoxide shutdown
  • Long run time with Economy Mode
  • RV-ready TT-30R outlet and 12V outlet
Cons
  • Lower running watts than the Generac
  • Lower starting watts, so big motor loads may strain it
  • Inverter electronics add complexity and cost to repair

What separates them

Generac GP6500E Portable GeneratorChampion 6500-Watt Inverter Generator
Power output6500 running watts, 8125 starting watts5000 running watts, 6500 starting watts
Power qualityConventional output with AVR; not rated for sensitive electronicsInverter with under 3% THD, safe for laptops and medical devices
NoiseConventional open-frame design, noticeably louder64 dB(A) at 23 feet, about normal conversation
SafetyLow-oil shutdown onlyCO Shield shuts the unit down on dangerous carbon monoxide
Run time10.5 hours at 50% loadUp to 18 hours at 25% load, with Economy Mode
OutletsTwo 120V 20A GFCI duplex, one 120/240V 30A L14-30R120V 30A TT-30R RV, 120/240V L14-30R, two 5-20R, 12V outlet
StartingElectric start with recoil backup, battery includedEZ Start Dial
Weight and portability182 lbs, never-flat wheels, fold-down handleInverter design built for easier transport and storage

Price history

  • Generac GP6500E Portable Generator: lowest $899.00 on Nov 4 at The Home Depot.
  • Champion 6500-Watt Inverter Generator: lowest $999.00 on Nov 9 at Walmart.

Prices at every store

Generac GP6500E Portable Generator

  • The Home DepotNew

    Availability unknown

    $899.00Observed Nov 4, 2026, 8:08 AM
    Visit The Home Depot
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $899.00Observed Nov 4, 2026, 8:08 AM
    Visit Amazon

Also available at

  • Wholesale Electric CaribeCheck price at Wholesale Electric Caribe
All 2 stores and price history →

Champion 6500-Watt Inverter Generator

  • WalmartNew

    In stockSold by Champion Power Equipment, Inc.

    $999.00Free shippingObserved at 9:58 PM
    Visit Walmart
  • SuperGen ProductsNew

    In stock

    $999.00Observed at 9:58 PM
    Visit SuperGen Products
  • Acme ToolsNew

    In stock

    $1,015.00Free shippingObserved at 9:58 PM
    Visit Acme Tools
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $999.00Free shippingObserved at 9:56 PM
    Visit Amazon

Also available at

  • WalmartCheck price at Walmart
All 11 stores and price history →

Specs compared

SpecGenerac GP6500E Portable GeneratorChampion 6500-Watt Inverter Generator
Power SourceGasoline—
Power Output8.13 kilowatts—
Capacity7.2 gal tank—
color—Yellow

What reviewers say

Generac GP6500E Portable Generator

Owners of the GP6500E series generally report it starts reliably and carries a house's essentials through an outage. The common complaints are weight and noise, which are typical of a 6,500-watt conventional generator.

What people mention
  • StartingPraisedOwners say the electric start fires it up quickly and the recoil backup works when the battery is low.
  • NoiseCriticisedIt is a standard open-frame generator, and owners say it is loud at full load.
  • WeightCriticisedAt 182 lbs it rolls fine but is hard to lift, so loading it alone is a struggle.
  • Run timePraisedOwners report roughly the rated 10 hours at half load on a full tank.

Champion 6500-Watt Inverter Generator

  • 4.9 / 5113 ratings

Reviewers give it high marks for quiet operation, easy starting, and reliable power for RVs and home backup. Some mention the weight and occasional CO Shield shutdowns as drawbacks.

What people mention
  • NoisePraisedOwners say it runs quietly, about as loud as a normal conversation.
  • StartingPraisedThe EZ Start Dial and electric start make it easy to start, even in cold weather.
  • Power qualityPraisedClean power with less than 3% THD safely runs sensitive electronics.

Questions and answers

Which is better for powering an RV?
The Champion. It has a dedicated 120V 30A TT-30R RV outlet, quieter operation and clean power for RV electronics. The Generac can run an RV through its L14-30R outlet but is louder and its output is less clean.
Which handles a big motor load like a well pump or air compressor better?
The Generac. Its 6500 running watts and PowerRush starting boost give it more headroom for large motor loads than the Champion's 5000 running watts.
Which is quieter?
The Champion. It runs at 64 dB(A) from 23 feet, about the level of normal conversation. The Generac is a conventional open-frame unit and is noticeably louder.
Is the Champion safe for laptops and medical devices?
Yes. Its inverter produces under 3% total harmonic distortion, which is clean enough for sensitive electronics. The Generac's conventional output is not rated for that use.
Which lasts longer on a tank?
The Champion, by a wide margin. It runs up to 18 hours at 25% load with Economy Mode. The Generac runs about 10.5 hours at 50% load.
Is the Champion worth stepping up to over the Generac?
For RV, camping and home-essentials use, yes. You trade some running watts for quieter, cleaner power, CO Shield and longer run times. If you mainly run heavy tools, the Generac's extra watts matter more.

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Buying guides that pick them

  • Best 6500-watt generators for home backup power
  • WeightCriticisedSome find it heavy and awkward to move, especially without help.