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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 221-230 of 541 reviews
Apr 22, 2025
Snowman
5 out of 5 stars review

Good features and quiet running.

Love the new generator, with an easy start electric starter. I went thru the process of adding the oil, etc. The generator arrived with a dead battery. I charged the battery , it started and ran quietly and efficently. l started the generator once a week just to keep ths system operational. My only problem is I need to charge the battery every time I go to start the generator. The battery does not hold a charge. The battery arrived needing a charge, and every time I go to start the generator I still need to charge the battery again.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Apr 19, 2025
quratulq_5849
5 out of 5 stars review

General Power system

[This review was collected as part of a promotion.] I received the Generac iQ3800 from Influenster. And it’s been an absolute game-changer for backup power and outdoor use. The dual fuel capability (gasoline and propane) offers great flexibility, especially during emergencies when fuel availability can be unpredictable. Maintenance is easy. And it’s quieter than other generators.

Review from influenster.com
Helpful?5A1PRXX2Z8VM13616762050
Oct 15, 2018
Gman
5 out of 5 stars review

Quiet and good price

Looked at other Generator/inverters and everyone talks about Honda being quiet and reliable. This model was easy to start following instructions and really quiet running. You can stand beside it and have a conversation without having to raise your voices. A nice surprise to me was Rona had a weekly sale on that was not posted at the shelf but was given at the checkout.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
May 13, 2021
Dave
3 out of 5 stars review

Got gp3000i for my rv less than a month old.

Run Ac ok, but the micro wave was also turn on at the same time overload. Overload led came on and voltage drop out which is to be expected. Went to shut it off and restart to reset to recover, it would not shut off. Had to unplugged the spark plug to shut it off? Started again voltage was correct ran AC fine, but could not shut it off. Looks like the Ignition module went bad? Called one of the company that was recommended for warranty they would not do genrac warranty repairs? Took it to another repair out fix to get it repaired they copy my 3yr extended warranty information which I had purchased as well. Not a good feeling about the warranty issue. Product may have issue with the ignition / control module? Will find out. Other than not being able to reset the unit after overload, whether automatic recovering or restarting unit, it still work fine. They need to look at redesigning the ignition/control module to be more robust. Waiting see see what the results will be? It’s a good product if they fix this issue.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Mar 6, 2022
Mark62
5 out of 5 stars review

Very Nice

I purchased a GP3000i I never had a portable generator I had a big roll around one and was hard to start. The GP3000i was easy to setup and started first pull. I can't believe how quiet it is and seems like it is good quality. I would definitely recommend this generator.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Dec 19, 2016
Slapshot1960
5 out of 5 stars review

Nice and Quite

Purchased 2 of these portable generators for our RV they are very quite and run great. We like the features on the gas gage and how many hours left till empty are awesome no longer waiting till they run out to see to put in more gas. Takes out the guessing game, also like the feature on how much power your consuming as well.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Feb 2, 2021
Stu
4 out of 5 stars review

Lots of features

Starts and runs great. Very quiet. However, there is a slight “ticking “ or “ knocking” noise at times. Also it squeals when I plug in a 500watt ceramic heater. No squealing with a heavier load.hoping the noise goes away with use as we don’t have any Generac service in this area. I may take it apart myself. Otherwise I quite like it.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Mar 29, 2021
Vols34
5 out of 5 stars review

Off grid for 1 year

Due to Covid, I have been living off grid for about a year. I run my generator for 6 hours every 3 days in order to charge my lithium batteries, and it has met all of my expectations. The electric start is great, and I have only used the pull start twice, when it was well below zero. I would definitely buy again. My only concerns are for me, I find the fuel remaining display hard to understand and don't use it. My only other comment is that the spark arrester got supper dirty and clogged up to the point that it made the generator very hard to run. I removed mine and have not had any issues since.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Jun 1, 2021
Tony1972
5 out of 5 stars review

I have tried another of small generators and I should of gotten this year's ago

This is a very economical generator good power with excellent fuel usage. I uses for portable power when I am traveling for work. This is one of the quietest generators I have ever had and used in the portable line. I definitely recommend this generator if anybody is looking for a small compact generator that is very easy to move and very portable. This is a replacement generator for a much more expensive generator that if I'd known this generator was as good I would have bought this generator and not had spent the $2,000 on the other generator that I am still fighting for under warranty

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050
Feb 8, 2022
Lenny377
4 out of 5 stars review

Runs good, good value, but hard to start- found workaround

I bought the GP2500i new a the beginning of December 2021 to provide some backup power if the electricity went out. I wasn't looking for a home backup- just to charge cellphones, led lights, run a single 1500W heater, power the fridge or freezer now and then to keep things from spoiling. From the unit's initial start-up, it took 5+ pulls to get it started. Successive starts were the same. 8-10 pulls to get it to start. Fresh fuel, 90+ Octane, no difference. From other reviewers on other websites, this seems to be a problem with this unit. However, I saw a post from a reviewer on another website with the same problem and he suggested 5-6 slow pulls with the unit set on Run, flip to Choke and then quick tugs to start. I tried his suggestion and it worked- 6 slow pulls followed by 3 actual quick pulls and it started and ran with no problems. I then ran it 20 min with 3/4 load. Stopped it for 5 mins to add fuel and it restarted on Run with 1 pull. This is with 60 day old, 91 octane gas treated for ethanol and storage protection. I would give the unit 5 stars if it started better. Other than that, it's a a great value for the money for the usable wattage it has. I hope this information is helpful.

Review from generac.com
Helpful?5A1PRXX2Z8VM13616762050