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  • Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator
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Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator

by Generac

Price: $319.00 & FREE Shipping. Details
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
800 Watt
  • Up to 40% lighter than a standard generator of equal watts
  • FlexPower to save fuel, reduce noise and safely power sensitive electronics
  • Low oil shutdown protection prevents engine from damage
  • LED indicator lights on the control panel indicate system status
  • Electronic circuit breakers protect against overloads
15 new from $319.00
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$319.00 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator + No-Spill 1405 2-1/2-Gallon Poly Gas Can (CARB Compliant)
Price for both: $342.25

Buy the selected items together

Compare to Similar Items


This item: Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator
Customer Rating (41) (12) (12) (54)
Price $ 319.00 $ 381.74 $ 325.92 $ 791.10
Shipping FREE Shipping $ 20.98 FREE Shipping FREE Shipping
Sold By Amazon.com Great Household Amazon.com Amazon.com
Power Source gas-powered gas-powered gas-powered gas-powered
Wattage 800 watts 800 watts 500 watts 1000 watts
Voltage 120 volts 12 volts 120 volts 12 volts
Dimensions 15 inches x 18 inches x 10 inches 15 inches x 18 inches x 10 inches 12.6 inches x 14.1 inches x 8.2 inches 14.9 inches x 17.7 inches x 9.4 inches
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Product Details

Size: 800 Watt
  • Product Dimensions: 18 x 10 x 15 inches ; 29 pounds
  • Shipping Weight: 36.6 pounds (View shipping rates and policies)
  • Shipping: This item ships only within the U.S. excluding certain locales such as CA.
  • Origin: USA
  • ASIN: B002NKMG5M
  • Item model number: 5791
  • Average Customer Review: 2.6 out of 5 stars  See all reviews (41 customer reviews)
  • Amazon Best Sellers Rank: #78,185 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.


Product Description

Size: 800 Watt

Product Description

Designed for life on the road, Generac's iX800 inverter generator featuring a durable, lightweight, compact design with a built-in handle offers clean portable power for camping, tailgating, and recreational use. The iX800 inverter generator provides 800 running watts and 850 starting watts.

Amazon.com

Designed for life on the road, Generac’s award winning iX Series is quiet and lightweight – almost anyone can handle this compact unit. Inverter technology gives these units less than 3% total harmonic distortion, providing clean and stable power that safely powers laptops, TVs, power tools and other sensitive electronics. Ideal for camping, tailgating and recreational use.

iX1400
800 watts of clean power to safely power sensitive electronics (see larger image).

Note for California residents: This model is not CARB-compliant. Units sold to California must be CARB-compliant.

In use
Ideal for recreational use (ix2000 model shown;
see larger image).

To determine your requirements for a portable generator, see this wattage chart sample.

How Inverter Technology Works

Inverter generators utilize a different type of alternator than standard generators to generate AC power. The raw power produced is converted from DC to AC power by a computer controlled inverter module. The engine speed varies depending on the electrical demand, which significantly reduces noise and fuel consumption compared to a standard portable. The end result is a portable generator with reduced weight and size and power that is ultra-clean, capable of safely powering sensitive electronics.

Lightweight and Compact

The iX Series is up to 40% lighter than a standard generator of equal watts. And the built-in handle makes it easy to move with minimal effort.

FlexPower™ Operation Modes

Use high mode for large loads or battery charging, or eco mode to save fuel and reduce sound levels even more.

What's in the Box

Generac iX800-5791 gas-powered portable inverter generator (Non-CARB Compliant), first oil supply, funnel, spark plug wrench, screwdriver, and manual.



Compare the Generac iX Series Portable Generators
Model # iX800 iX1400 iX1600 iX2000
Compliance 49 State CARB 49 State 49 State
Running/starting watts 800 / 850 1400 / 1450 1600 / 1650 2000 / 2200
Engine displacement 38cc 80cc 99cc 126cc
Fuel tank size (gallons) 0.5 0.7 0.8 1.0
Approx. run time @ 50% (hours) 3.6 5 4.9 4.7
Fuel tank Resin Steel Resin Resin
Circuit breaker protection 6.6 Amps AC 12.5 Amps AC
5 Amps DC
13.3 Amps AC
5 Amps DC
16.7 Amps AC
5 Amps DC
DC charging cable No Yes Yes Yes
Outlets 2 x 5-15R 2 x 5-15R
1 x 12V DC
2 x 5-15R
1 x 12V DC
2 x 5-20R
1 x 12V DC
Dimensions (LxWxH, inches) 18 x 10 x 15 21 x 11 x 18 21 x 11 x 18 22 x 11 x 18
Weight (pounds) 29 46 43.5 49.6


Customer Questions & Answers

Customer Reviews

Took to 2 authorized Generac service shops.
ThreeFootDraft
No matter who advertises for this product, better off to avoid this brand Generac means poor quality based on my experience.
high pockets
This is JUNK, save up a few more bucks and buy a Honda or Yamaha and have something dependable.
GeneratorUser

Most Helpful Customer Reviews

72 of 78 people found the following review helpful By ThreeFootDraft on July 23, 2010
Size Name: 800 Watt Verified Purchase
Follow up - August 23rd, 2010:

Generac finally replaced my leaking unit. Hours of work on my part. The new unit idles quite different. On normal mode it idles significantly lower and flucuates up and down. In the economy mode, it simply idles even lower. The first unit seemed to idle normal (who knows) or high. In economy mode it flucuated up and down as stated in the manual. The electrical outlets are different. The first unit had commercial 120v outlets - one plug vertical, one horizontal. I spent $50 for a commercial extension cord. The new unit has regular (parallel) plugs. Therefore I'll need to buy an adaptor. Unbelievable. If there are any more problems I simply will pay someone who knows what they are doing (Generac's service people do not) or throw the unit out. Stay away from this unit. And stay away from Generac.

June, 2010 - Unit was defective out of box. Significant oil leak from engine even when not running. Took to 2 authorized Generac service shops. Still leaks. Leak is where 2 aluminum machine surfaces come together. Still trying to get resolution. Generac customer service fair at best. Takes considerable time to reach a human being. The unit already looks 2 years old due to the handling by the repair people and I've never used it. Generac has still not offered to replace. They "don't make the motors". A great excuse. I will contact Amazon corporate office if necessary to tell them not to sell this company's products and file in small claims court if necessary against Generac. Please consider other manufacturers' if you are looking for a small generator. I may be contacted at nfre at comcast dot net for photos of leak. Thank you.
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42 of 45 people found the following review helpful By Russgary on March 9, 2011
Size Name: 800 Watt
I bought this generator to use for charging a battery bank on an RV. I never got it to run for even 10 minutes, when I took it to the factory authorized repair depot they said it had water in the gas, they told Me this before working on it? The tank I fill My equipment with is used on 7 engines none of which had problems. The so called repair I had to pay for and accomplisehed nothing, I still cannot use the generator, and the factory refuses to warranty it. I have two other generators a 6 kw and a 1 kw both constant speed type one of which cost 99 dollars and puts this one to shame. Very poor showing and no warranty beware.
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28 of 29 people found the following review helpful By David C. Martin on April 16, 2011
Size Name: 800 Watt
Got this unit for a very low price through Amazon.com. Cranked it up and worked ok. Next day it would not hold voltage. took to authorized dealer. 4 weeks later told me the carborator was dirty and not covered by warranty. male bovineshit! the nit needed adjusting. a warranty charge. but why wait for the manufacture to come up with the payment when you can hit the owner with a $75 "clean carburetor" charge. What a rip off.
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31 of 35 people found the following review helpful By Ken H on January 5, 2011
Size Name: 800 Watt Verified Purchase
I bought the generator to use on my boat to occasounally keep the batteries up when camped away from the marina. I was very disappointed in the loud noise level. It is advertised and also marked on the box as "ultra quiet"; well it is as loud as a lawn mower under load, and I wouldn't want to listen to that noise for hours at a time, nor subject that to fellow boaters nearby. I had expected maybe something that wouldn't be a nuissance and may be nearly as quiet as a Honda. No way, this is unacceptable to have to listen to.
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15 of 16 people found the following review helpful By kris on July 30, 2011
Size Name: 800 Watt Verified Purchase
Purchased it as on open box item from Amazon.
Lesson learnt - If you wanted it by a certain date, tell Amazon to NOT use UPS. Their supply chain sucks.
They cannot intercept a parcel and hold at their office for pickup on the same day of supposed delivery.
It will only be available the next day. So beware. Have them ship by Fedex instead. Fedex can even
contact their truck drivers by radio on delivery day.

I puchased the generator to go camping and to power a laptop and a fan at 90F weather.
The generator ran for 15 minutes and died. The load was most likely less than 400W, just charging the
laptop and running a small box fan. The generator was supposed to supply 800W continuous.

It turns out the inverter board is bad. A known problem with this product line. I later saw reviews of the
1600W model not able to keep up more than 800W.

STAY AWAY FROM THIS GENERAC PRODUCT LINE.

However, Amazon is great to make good my loss, but is not without headaches.
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20 of 23 people found the following review helpful By Bird Man on July 18, 2011
Size Name: 800 Watt Verified Purchase
Poor repair service. In the 7 months the repair company has had the thing it hasn't been touched. Generac won't approve the repair of a generator that didn't work right out of the box. Worst customer service i have ever seen. DO NOT BUY!!!
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28 of 36 people found the following review helpful By Noel B. Fludgate on September 28, 2010
Size Name: 800 Watt Verified Purchase
Arrived right on time thanks to $3.99 next day delivery, you can't beat that price
This was super little generator. A lttle tricky to fill with oil but once that done its easy to fill with gas. No mixing here just half a gallon of unleaded and off it goes.Now after 2 months it will not start.
I ran one house fan, a laptop and printer with two drop cords. It went for 7 hours on half load and did not use all the gas. It will power 2 fans on half load.
As for noise I stood next to a Honda and the Generac was just slightly noiser but not by much. This was again on half load. Its noiser on full load but again for the price its great.
It starts on the second pull. Also its not heavy. People were stopping and asking me about it. I told them to go buy one. Mabye I should ask for commision.
I now see Amazon have dropped the price by $50 oh well my loss.
Basically it does what I need it to.

EDIT AFTER 2 MONTHS
I am NOT pleased.After 2 months it stopped working. Amazon was no help at well and refusedto take it back as it has gas and oil. Do they think people are so stupid as to return this with gas and oil in it.
I loved Amazon but not now. AMAZON IS A TOTAL WASTE OF SPACE and they will not get my business. GENERAC ARE ALSO NOT WORTH THE TIME.
VERY VERY VERY UPSET CUSTOMER 2 years later still does not work, Don't, really Don't waste your money on this junk
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Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator
This item: Generac 5791 iX800 800 Watt 38cc 4-Stroke OHV Gas Powered Portable Inverter Generator
Price: $319.00
Ships from and sold by Amazon.com