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Customer reviews for 2,500 Watt Generac GP2500i Portable Inverter Generator for
2,500 Watt Generac GP2500i Portable Inverter Generator
4.4 out of 5 stars
stars542 ratings541 reviews
  1. 5 stars67% (365)
  2. 4 stars19% (101)
  3. 3 stars7% (40)
  4. 2 stars1% (6)
  5. 1 star6% (30)

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Showing 251-260 of 541 reviews
Mar 14, 2023
Mickey
3 out of 5 stars review

Out of the box

Purchased in early spring for summer camping. Did not use until December and first time running started right up. Let it warm up and would not run with choke off. Ran under load for approximately 8 hours and had no other issues. The problem is that it would have to be almost full choke to run. Took it in for repairs and was told the carburetor needed to be replaced. Contacted manufacturer after service center stated is was not covered under warranty and the manufacturer said same thing. I am replacing the carburetor and hope there will be no further issues. Love the product, not happy with support.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Mar 11, 2021
AL
5 out of 5 stars review

Another Great little unit from generac

Apprentice electrician: I’ve installed many generac systems over the years and always been impressed with the quality and service. Instead of going with a Honda 2200i or Yamaha 3000 watt inverter I picked this thing up from one of my local wholesale generac reps, very happy with the performance of this 3000w power rush, whisper quiet, easy to maintain and the features this product offers are great for all purposes from the job site to going away camping for the weekend. I now own 3 generac portable generators and I wouldn’t trade them for anything.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Jun 16, 2023
JohnnyRV
5 out of 5 stars review

Great Generator

Bought this generator to power my RV for off grid camping. Have only been out with it once so far but are very impressed with it. Starts like a dream and easily powers my AC and other things. Runs very quiet on economy mode. My only suggestion is that it needs wheels since it’s quite heavy to lift.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Jun 30, 2023
Unhappycamper
3 out of 5 stars review

This product let me down

I purchased your iq3500 in August of 2022 and used it to power my RV twice in less than a year . The Electric start quite working in June is 2023 (less than one year ) , I checked the battery it was good . Would not do anything, I assume the starter went bad . Then I pull started it , started fine first 2 times . The third time that I tried to pull start it the pull start rope broke . The unit is less than a year old and has only been pull started 3 times and the rope broke and starter quite working . Very disappointed with the quality, hopefully they honor their warranty.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Feb 2, 2025
Max and Rio
5 out of 5 stars review

GENERAC 3500 IO

I purchased the 3500 IO back in 2020 in Texas. To date I have 7558.7 hours on the unit, it went through the Big Freeze in Texas, kept my neighbors homes heated during power outages. This unit has had the oil changed every 250 hrs (30W), Lucas upper cylinder gas additive occasionally, a new pull cord at 5800 hrs and a yearly plug change. I recommend this unit for all your uses up to 25 amps, it hasn't let me down. Great unit

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Apr 19, 2025
salmans1_5709
5 out of 5 stars review

Dual fuel awesome

[This review was collected as part of a promotion.] I’ve been using the Generac iQ3800 Dual Fuel Portable Generator for a while now, and I’m really impressed with how easy it is to operate. The push-button start works flawlessly, and the design makes it super portable with the built-in handle and wheels. It’s definitely built to last—feels very durable and reliable. I also appreciate the Economy Mode to help save fuel, and the LED display makes it simple to monitor everything. Great generator for both work and outdoor use!

Review from influenster.com
Helpful?5A1PRXX2Z8VM13616762050
Mar 11, 2020
Km5187
1 out of 5 stars review

Broke down after 3 hours

Bought this generator for California’s wild fire power outages, after 3 hours of runtime the generator started running rough and not producing power. Contacted Generac to fix it under warranty, Generac referred me to a local repair shop, I’ve been waiting for 6 weeks now to find out what’s wrong with it. I have a $1000 generator that has spent half it’s life in a repair shop without any answers.

Review from generac.com
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Jan 27, 2021
Disappointed
4 out of 5 stars review

I like this iq3500 except.....

Seems like a great product but the motor started surging after the first hour of usage. I suppose there is a plugged orfice of some sort in the carburetor but I don’t really want to take it off and clean it. The fuel filter should have taken care of this issue. ??

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Apr 22, 2025
mallorym127_7787
5 out of 5 stars review

Can work on both gas and propane

[This review was collected as part of a promotion.] I’ve never had or used a generator before so was super excited to get this; always wanted one. As you can see from our video it’s super easy to use! Just be sure to connect the battery, add oil then either use gas or propane and you’re good to go.

Review from influenster.com
Helpful?5A1PRXX2Z8VM13616762050
Apr 24, 2025
geeroselcrz_6870
5 out of 5 stars review

Electricity on wheels!

[This review was collected as part of a promotion.] We’ve never had a generator before and now we don’t have to worry about our power going out! This is literally electricity on wheels! It was very easy to set up and fairly quiet when it’s running. It runs on either gas or propane. We will be using it on camping trips or if the electricity goes out. It’s very compact and easy to move around. All in all one powerful generator!

Review from influenster.com
Helpful?5A1PRXX2Z8VM13616762050