Generac 5791 iX800 Review 2022 

 October 25, 2020

By  admin

Generac 5791 iX800 is ideal for ultra-light power needs. The 800 watt power yield can supply limited power to your electrical appliances; for instance, your mobile phone, laptop and other standard lights. This portable generator processed raw power by the built- in advanced microprocessor. The supplied power by the Generac 5791 iX800 assures precise power to your electric appliances is ideal for campsites, in your home, lawn or for whatever purpose you want that is within its capacity.

Generac 5791 iX800 Features at a Glance

  • Inverter technology passes energy through an electronic microprocessor to provide clean, stable power.
  • Ideal for camping, tailgating, and recreational use; built-in handle for easy transport.
  • 800-watt power supply; 850 surge watts
  • FlexPower adjustable engine speed (Eco and High modes); full enclosure for quiet, campground-friendly use
  • Non-CARB Compliant/Not For Sale In California

Benefits of Owning Generac 5791 iX800

Seamless Power Supply

The manufacturer of Generac takes advantage of the latest innovation in power conversion. Generac 5791 iX800 is designed to have the electronic microprocessor for raw power conversion that in turn provides you with a clean and reliable power, for at least three and a half hours at half a load.


Generac 5791 iX800 portable generator is designed to with two engine speed. The FlexPower – Eco and High modes allow you to save on fuel consumptions, maximizing your extra resources. The changeable power supply does not, in any means, affect the total performance of the gen set. The low oil sensor automatically shuts off the machine once the level is reached. So you wouldn’t bother checking the oil status frequently.

Reduced Noise and Gadget Friendly

Like other inverters, the Generac 5791 iX800 is crafted with a low level of noise, giving you a calmer environment. Known for its hybrid technology, Generac 5791 iX800 also has the “Total harmonic distortion (THD)” features that safeguard your sensitive electrical appliances.

Easy Storage and Transfer

Generac 5791 iX800 measures 18 x 10 x 15 and weighs 37 pounds. You only need a little space in your storeroom to safe keep this machine. It is designed to be handy and light, so all your activities that need stand- by power wouldn’t be a discomfort anymore.

Pros and Cons of Generac 5791 iX800


  • Less than 3% total harmonic distortion
  • Special electronic microprocessor
  • Compact design with built-in handle
  • FlexPower adjustable engine speed (Eco and High modes)


  • Delivery will take long.
  • After sales issues

Customer Reviews

A number of disgruntled customers were dissatisfied with the after-sales service from Generac Company, for the slowed reply from their queries. However, there are also a number of customers who were pleased with the machine’s performance.

“We purchased this small generator for backup power after the recent tornadoes in our area.
The instructions are good and the generator was easy to setup for use. It can be operated by my son and wife which is a plus” N. Stoddart

“I got this in Feb. After this thing not running more than 10 minutes at a time I took it to a service center for warranty service.” Christopher Miles

“This is a real nice generator and is very light and quiet, but it won’t run everything i want to run. should have bought 1600.” Footy


Out of 12 reviews, the Generac 5791 iX800 got 3 out of 5 stars. The significant customer service issues and some malfunctions need to be addressed the soonest time possible. However, for the very precise customers who want a good product and excellent after-sales service, I would suggest to opt for Yamaha EFI2000iS. Conversely, for those who are a bit tight on their budget and can wait for a couple of days to get a reply from the customer service support, then the Generac 5791 iX800 fits perfectly for you.


Emil Schoene

Born and raised in Austin, TX I come from a background of home renovation. By helping my family in my younger years with their construction business, I learned the ropes quickly and as I grew it became my passion that I still do today. Looking to share my knowledge with others. I invite you to leave comments on any post as I know you will have questions that you are not finding anywhere else.

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