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PowerhorseModel LC4500i
Discontinued

Powerhorse 3,500W Gas Generator Review

The Powerhorse LC4500i is a portable inverter generator designed to provide reliable and clean power for various applications, including home backup, camping, and outdoor events. It features a 212cc engine with electric start, producing 4,500 surge watts and 3,500 rated watts. The generator operates quietly at 57dB at 1/4 load and includes a parallel-ready design for connecting two units for increased power output.

At a Glance

  • Running Watts
    3500W
  • Starting Watts
    4500W
  • Fuel Type
    Gasoline
  • Runtime (25%)
    10h
  • Noise Level
    57 dB
  • Weight
    99 lbs

Where to buy

Prices can change. We update these automatically.

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    Is this the right generator for you?

    Here's the quick tradeoff view — what this model does well, and where it may not fit.

    Pros

    • 212cc engine with electric start (battery included)
    • Produces less than 2% total harmonic distortion for safely operating sensitive electronics
    • 100% copper-wound heads prevent overheating for a longer life
    • Engine Smart Control (ESC) variable throttle delivers fuel savings and quiet, dependable operation
    • Overload protection protects equipment
    • Low oil alert offers additional protection
    • Removable side panel for quick, easy oil changes
    • Includes (1) NEMA 5-20R 120V-20A, (1) NEMA TT-30R 120V outlets and (2) USB ports
    • U.S.D.A. Forest Service qualified spark arrestor adds greater safe use in parks and forests
    • CARB- and EPA-compliant; can be sold in all 50 states

    Cons

    • No outlets listed
    • Heavy weight at 99 lbs
    Best use cases
    Sensitive electronicsRV / campingQuiet operationExpandable power

    Summary

    The Powerhorse LC4500i generator is a versatile and reliable power source ideal for a variety of applications, ranging from outdoor activities to emergency backup power. With a starting wattage of 4500 watts and a running wattage of 3500 watts, it provides sufficient power to run essential appliances and tools. This inverter generator is designed to deliver clean energy, making it suitable for sensitive electronics, and its compact design enhances its portability.

    Equipped with both recoil and electric starting mechanisms, the LC4500i ensures ease of use, especially in urgent situations where quick power is required. Its noise level of 57 decibels allows for quieter operation, making it a great choice for camping trips or backyard events. The generator's fuel efficiency, combined with a runtime of up to 10 hours at 25% load, positions it as a dependable option for users seeking extended periods of power without frequent refueling.

    Power & Runtime

    The Powerhorse LC4500i operates on gasoline, a widely available fuel type that provides convenience for most users. With a fuel tank capacity of 2.6 gallons, this generator can run for an impressive 10 hours at a 25% load, making it suitable for long-term use during power outages or extended outdoor activities. The runtime at 50% load is not applicable, but the generator's efficiency at lower loads ensures that users can maximize their operational time.

    A significant feature of the LC4500i is its low total harmonic distortion (THD) of less than 2%. This characteristic is particularly important for users who need to power sensitive electronics, as it minimizes the risk of damage to devices such as laptops, smartphones, and other equipment. The combination of its starting wattage of 4500 watts and running wattage of 3500 watts provides ample power for various applications, including running refrigerators, power tools, and lighting.

    When it comes to noise level, the LC4500i operates at a relatively quiet 57 decibels. This level of sound is comparable to normal conversation and is significantly lower than many traditional generators, making it perfect for use in residential areas or during camping trips where noise restrictions may apply. The dual starting system, featuring both recoil and electric start, adds to the convenience, ensuring that users can start the generator with minimal effort.

    Outlets

    The Powerhorse LC4500i comes equipped with a range of outlets designed to cater to various needs. While specific outlet types and numbers are not detailed in the data provided, the generator is RV-ready, indicating that it includes a 30-amp outlet suitable for connecting to recreational vehicles. This feature allows users to easily power their RVs while on the road or at campsites.

    Moreover, the generator's parallel capability is a noteworthy addition. This allows users to connect two LC4500i units together to double their power output, providing a flexible solution for those who require more wattage for larger appliances or tools. The generator is designed to accommodate a transfer switch, which is essential for safely connecting it to a home’s electrical system during outages.

    Portability

    The LC4500i is designed with portability in mind, featuring compact dimensions of 22.8 inches in length, 17.3 inches in width, and 20 inches in height. Weighing in at 99 pounds, it strikes a balance between being lightweight enough for transport and sturdy enough for robust outdoor use. This makes it an excellent choice for users who need a generator that can be easily moved from one location to another.

    The frame design of the LC4500i enhances its portability further. It typically includes built-in handles and wheels, allowing for easy maneuverability whether you are transporting it to a campsite or moving it around your yard. This thoughtful design ensures that even those who may not have extensive strength can manage the generator with relative ease.

    Features

    The control panel of the Powerhorse LC4500i is user-friendly and designed for efficiency. It includes essential indicators and controls that allow users to monitor fuel levels, power output, and operational status at a glance. The inclusion of an inverter technology means that the generator produces cleaner power, which is crucial for protecting sensitive electronics.

    Safety features are paramount in any generator, and the LC4500i does not disappoint. It incorporates various safety mechanisms to prevent overload and protect both the generator and connected devices. Additionally, the generator comes with a two-year warranty, providing peace of mind to users regarding its longevity and reliability.

    Included accessories may vary, but users can typically expect necessary components such as oil and a user manual for setup and maintenance. This ensures that users have everything they need to get started right away and maintain the generator in optimal condition.

    Recommended Audiences

    • Campers seeking a reliable power source for electronics and appliances
    • Homeowners needing backup power during outages
    • RV enthusiasts looking for a generator that is easy to transport and RV-ready
    • Contractors requiring a portable generator for power tools on job sites
    • Outdoor event organizers needing quiet operation for sound-sensitive environments
    • Individuals who prioritize clean energy for sensitive devices
    • Users looking for a generator with dual starting systems for added convenience
    • Those needing a generator with the capability to run parallel for increased wattage options
    Updated: Jan 30, 2026

    What this generator can power

    At a Glance

    • Continuous:3,500W(recommended usable: 2,800W)
    • Surge:4,500W
    • Output:120V only
    • Inverter:Yes (clean power for electronics)

    Big-item compatibility

    Refrigerator
    Yes
    Sump Pump (1/3 HP)
    Yes
    Well Pump (1 HP, 240V)
    No

    Needs 240V output

    Furnace Blower
    Yes
    Central AC (3 Ton, 240V)
    No

    Needs 240V output

    Window AC (10,000 BTU)
    Yes
    Electric Water Heater (240V)
    No

    Needs 240V output

    Electric Range/Oven (240V)
    No

    Needs 240V output

    Air Compressor (1 HP)
    Yes

    Example setups

    Essentials

    • Lights + Wi-Fi + Charging
    • Refrigerator
    • Furnace Blower
    • Sump Pump (1/3 HP)

    Est. running: 1,800W

    Peak surge (single motor): 2,000W

    Avoid starting multiple motor loads at the same time.

    Essentials + Comfort

    • Lights + Wi-Fi + Charging
    • Refrigerator
    • TV + Entertainment System
    • Microwave
    • Furnace Blower

    Est. running: 2,500W

    Peak surge (single motor): 1,200W

    Avoid starting multiple motor loads at the same time.

    Jobsite / Tools

    • Lights + Wi-Fi + Charging
    • Circular Saw (7 1/4")

    Est. running: 1,600W

    Peak surge (single motor): 2,800W

    Avoid starting multiple motor loads at the same time.

    These are estimates using typical wattage assumptions. Real appliances vary. Startup surges can be 2–6× the running wattage for motor-driven loads. 240V loads require a 120/240V generator and proper connection. Use a transfer switch or interlock kit; never backfeed a panel.

    Powerhorse
    ReliabilityCAverage

    About Powerhorse

    Powerhorse is known for its reliable and affordable portable generators that cater primarily to homeowners and small businesses.

    Founded1981
    HQBurnsville, Minnesota, USA
    Website (opens in a new tab)
    Support1-800-221-0516
    Support / Manuals (opens in a new tab)
    View all Powerhorse generators

    Warranty

    Coverage: 2 years

    Power by fuel

    FuelRunningStartingRuntime @50%Runtime @25%
    Gasoline3500W4500W10h

    Full Specifications

    Power

    Running Watts3,500 watts
    Starting Watts4,500 watts
    Starting Watts (Gasoline)4,500 W
    Running Watts (Gasoline)3,500 W

    Engine

    Engine212 cc OHV 4-stroke
    Engine TypeOHV 4-stroke
    Engine Displacement212 cc
    Engine Oil10W-30
    Spark ArrestorYes
    Emissions ComplianceCARB, EPA

    Electrical

    Voltage (AC)120
    Voltage (DC)5
    PhaseSingle
    Running Amps29.2 A
    Peak Amps37.5 A
    AC Frequency60 hz
    Current29.2 amps
    GFCI OutletsNo
    USB Outlets2x 5V USB port
    DC Outlets2x 5V USB port
    AC Outlets1x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R)
    Total Harmonic Distortion (THD)<2% %

    Dimensions

    Dimensions22.8 x 17.3 x 20 inches
    Weight99 lbs

    Other

    Automatic Low Oil ShutdownYes
    Emissions ComplianceCARB, EPA
    Automatic Voltage RegulationYes
    Automatic Voltage RegulatorYes
    Covered OutletsNo
    Electric StartYes
    Fuel GaugeYes
    Fuel Tank Capacity2.6 gallons
    Included AccessoriesFunnel, tool kit, and battery
    IndicatorsYes
    InverterYes
    Noise Level57 dBA
    Overload ProtectionLow oil and overload protection
    Parallel CapableYes
    Part Number96,387
    Recoil StartYes
    RV ReadyYes
    Starter TypeRecoil, Electric
    Starting ComponentsRecoil, Electric
    Starting SystemRecoil, Electric
    Warranty2 years

    Core

    Fuel TypeGasoline

    Runtime

    Runtime @ 25%10 hours
    Runtime @ 25% Load (Gasoline)10 hours

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