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Generac GP2500i - 2200/2500W Inverter Generator

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Generac GP2500iGenerac GP2500iGenerac GP2500i
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Description

An affordable solution for recreational applications, the GP2500i is the perfect size for tailgating,camping and power on the go. (source: Generac (opens in a new tab))

Zoom on the Generac GP2500i

In short, the Generac GP2500i is a compact and lightweight portable inverter generator adequately designed for:

  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Handcrafting enthusiasts who wish to work on-the-go

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed.

Power & Run Time

The Generac GP2500i in use

The Generac GP2500i

Running on gasoline, the Generac GP2500i operates with a 98 cc OHV 4-stroke engine, delivering 120V, with a running wattage of 2,200W and a peak wattage of 2,500W. Furthermore, its parallel capability (7118 parallel kit (opens in a new tab) not included) allows power output to double when connected to another similar or compatible unit, ensuring expanded energy capacity and reliability for various applications.

This inverter generator is started via a manual recoil starter system.

Featuring a 1 gallon fuel tank, the GP2500i can provide power for up to 8 hours on a full tank (with fuel consumption averaging 0.13 gallons per hour).

The <3% Total Harmonic Distortion (THD) of the GP2500i ensures a clean sine wave output, providing a secure power source for your sensitive electronics through its AC outlets.

Outlets

The control panel features the following 2 AC outlets:

Duplex 120V 20A (5-20R)

Moreover, it presents 3 DC outlets: there's two 5V USB ports (1 x USB-A) ensuring convenient charging of devices like mobile phones and tablets, for connectivity on the go and a 12V 8A receptacle offering a convenient battery charging option.

Portability

With an inverter generator design, the Generac GP2500i features a closed construction (L19.7 x W11.4 x H17.9 in), enhancing aesthetics and ensuring reduced noise levels, offering a distinct advantage over standard, open frame generators. The featured design follows the latest trends and is ideal for easy and recreational use.

Considered a lightweight portable generator, the GP2500i weighs just 48 lbs. Designed for easy mobility, one person can move it around without any difficulty, ensuring power on the go. In addition, a handle (molded in the case) lets you carry it easily and further increases its convenience.

Features

Panel of the Generac GP2500i

The GP2500i's control panel

The generator's light indicators provide visual feedback when the generator is ready, the generator is overloaded and the oil level is too low.

Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off, which gives you a complete peace of mind when using it.

The GP2500i also benefits from Generac’s COsense® carbon monoxide monitoring. This technology senses and manages CO output and shuts down the unit when necessary, to protect you from CO poisoning.

While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Generac GP2500i, the following accessories are also included: tool kit, funnel, oil and battery charging cables.

Product Video

The Generac GP2500i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Generac GP2500i compare to inverter generators of similar power (between 1500 and 2500 W).

  • With a dry weight of 48 lbs, the Generac GP2500i sits comfortably within the expected weight range for inverters generating 1500 to 2500 rated watts. If weight matters to you, one of the champions in this power range is the Genmax GM2000i with only 34.2 pounds.
  • Concerning its runtime, the GP2500i provides up to 8 hours at a 25% load, indicating that it falls on the lower side compared to other generators of its type and power range. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the DuroMax XP2300iH, with up to 13 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. This inverter generator is rather wasteful, compared to other devices within the aforementioned output range, when it comes to gasoline consumption, as it reaches roughly 0.13 GPH at a 25% load. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the DuroMax XP2300iH. With a fuel consumption of as little as 0.08 GPH, it is one of the most efficient generators currently on the market.

Here's a list of the most popular specific comparisons:

Price comparison

As you can see from these interactive charts, when compared to other 1500-2500W inverter generators, the Generac GP2500i is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • COsense® technology
  • Several accessories included
  • Parallel capable
  • Inverter
AVERAGE SPECS:
  • Decent weight (48 lbs)
WEAKNESSES:
  • No data center
  • Relatively low run time
  • Low fuel efficiency

Do you own the Generac GP2500i and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
Parallel capableYes, cable not included
RV readyNo
FuelGasoline
Engine98 cc OHV 4-stroke
Starting systemRecoil
Warranty3 years
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts2,200 W
Starting watts2,500 W
Running amps18.3 amps
Peak amps20.8 amps
Run time @50% load4.5 h
Run time @25% load8 h
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x Duplex 120V 20A (5-20R)
DC outlets2x 5V USB port (USB-A)
1x 12V 8A receptacle
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tank1 gal
Fuel gaugeNo
Misc
Weight48 lbs
Approx. dimensions (L x W x H)19.7 x 11.4 x 17.9 in
Noise (lower limit)Unknown
THD< 3%
ComplianceCARB, EPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedOil, funnel, tool kit, and battery charging cables
Other model numbers8251
UPC696471099942

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

Spec Improvement×

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About Generac

Generac Power Systems is an American based generator and power equipment manufacturer, founded in 1959. As its name suggests, the main focus of Generac are power generators, and other related electric equipment, such as switches, paralleling systems and small engines. The company has several manufacturing facilities based in the US, thus, their products are engineered and built in the USA. However, their components can be a mix of domestic and foreign parts.

Warranty Information

The Generac GP2500i is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Generac generators, please consult Generac's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-GENERAC (888-436-3722).

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizer.
ItemRunning WattsStarting Watts
At homeMicrowave (1000 watts)15001500
Satelite receiver250250
Total1750 W1750 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Blender400850
Game console150150
Total1740 W2330 W
For workDemolition hammer12601260
Electric fence (25 miles)250250
Bug zapper8080
Total1590 W1590 W
What is the noise rating of the GP2500i?

Due to the lack of standardization in noise emission measurement, Generac does not provide their units' noise levels.

Couldn't find the right answer for you? Ask your own question.

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Generac GP2500i
7.8 Total Score
3 reviews
Add your review
Price
8.3
Value
8.7
Quality
6
Performance
8.3

User Reviews

Most Recent Most Helpful Highest Rating Lowest Rating Add your review
  1. 3.4
    Price
    70
    Value
    70
    Quality
    60
    Performance
    70

    It works well but support from Generac for the small portables is pathetic. I won’t buy another one.

    + PROS:
    • Lightweight
    - CONS:
    • Difficult to service and find replacement parts at reasonable cost.
    Helpful(0) Unhelpful(0)You have already voted this
  2. 4.75
    Price
    100
    Value
    100
    Quality
    80
    Performance
    100

    I lost power due to a storm bought this 2500 to get me through great little generator. I ran my refrigerator my furnace, my fish tank and a couple of lights ran 4 1/2 hours until the power came back on and only used a half a tank of gas. For the money great product.

    + PROS:
    • Light weight portable not to heavy
    - CONS:
    • I didn’t have any
    Helpful(0) Unhelpful(1)You have already voted this
  3. 3.65
    Price
    80
    Value
    90
    Quality
    40
    Performance
    80

    Drinks gas at anything past idle which is any load over 5 amps
    EXTREMELY NOISY!! Even with light load. I placed it 30 ft from my camper with the exhaust pointed away and it kept me up all night. If I could get all my money back on this, I would do it and buy a better one that wasn’t so noisy. Had one years ago that was so quiet I couldn’t hear it at all from 30 ft

    + PROS:
    • 20 amp outlet
    • Lightweight
    - CONS:
    • Drinks gas at anything past idle which is any load over 5 amps
    • EXTREMELY NOISY!! Even with light load. I placed it 30 ft from my camper with the exhaust pointed away and it kept me up all night. If I could get all my money back on this, I would do it and buy a better one that wasn't so noisy. Had one years ago that was so quiet I couldn't hear it at all from 30 ft
    Helpful(1) Unhelpful(0)You have already voted this

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