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Lifan ESI 2500iER-EFI Spec Review

The Lifan ESI 2500iER-EFI is a quiet and compact inverter generator with a rated wattage of 2400 W and a starting wattage of 2500 W.

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Lifan ESI 2500iER-EFILifan ESI 2500iER-EFILifan ESI 2500iER-EFILifan ESI 2500iER-EFI
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Description

Zoom on the Lifan ESI 2500iER-EFI

In summary, the Lifan ESI 2500iER-EFI is a quiet and compact portable inverter generator especially useful for:

  • Camping and tailgating buffs looking to enhance their experience
  • 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, including its emission compliance information.

Power & Run Time

The Lifan ESI 2500iER-EFI is powered by a 125 cc (4 hp) Lifan OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 2400W as well as a peak wattage of 2500W. In addition, as it is parallel capable (Duo Power parallel kit (opens in a new tab) not included), this power can be doubled when linked to another similar or compatible unit.

The inverter generator is rated for a noise of 58 dBA (less noisy than rainfall). Its starting mechanisms include a simple traditional pull-start mechanism and a simple and elegant electric starter (battery included). For additional convenience, the ESI 2500iER-EFI may also be remotely started (key fob included).

The Electronic Fuel Injection (EFI) system enhances the engine's reliability, lowers fuel consumption, improves startup, reduces servicing, boosts stale fuel resistance, and offers better altitude adaptability.

The fuel capacity of 1.5 gallon allows the ESI 2500iER-EFI to operate for around 12 hours at 50% load with a full tank (fuel consumption around 0.13 GPH).

Sensitive electronics can be safely plugged in the AC outlets, as the ESI 2500iER-EFI produces a clean sine wave, with a <2% Total Harmonic Disruption (THD).

Outlets

The control panel features the following 2 AC outlets:

Duplex 120V 20A (5-20R)

It also sports 1 DC outlet: there's a 12V 8A receptacle with which charging your batteries is made easy.

Portability

The Lifan ESI 2500iER-EFI is an inverter generator and has an encased design of the following dimensions: L20.5 x W11 x H19 in. Thus, it is more aesthetical than conventional, open frame products. This modern design aims to provide an ideal power solution to recreational users.

The 77 lbs of the ESI 2500iER-EFI's dry weight enables you to use it anywhere you will ever need. Moreover, its wheel kit and its handle (molded in the case) will allow you to effortlessly shift it once it's on the ground.

Features

Panel of the Lifan ESI 2500iER-EFI

The ESI 2500iER-EFI's control panel

To help you monitor the ESI 2500iER-EFI's status and activity, its control panel is equipped with a digital data center, giving you information on the power output, voltage, fuel level and lifetime run hours.

In addition to this info, when its oil levels are insufficient, you will be informed by the featured light indicator.

As for its security measures, the device features an automatic low oil shut-off and an overload protection (circuit breaker), letting you use it with a peace of mind.

Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Lifan ESI 2500iER-EFI also comes with some accessories: tool kit, battery charger, key fob, battery charging cables and RV adapter are included.

Emissions

The Lifan ESI 2500iER-EFI is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

Moreover, it features a spark arrestor and therefore, can be used in forested areas.

Product Video

The Lifan ESI 2500iER-EFI versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Lifan ESI 2500iER-EFI compare to generators of similar power (between 1500 and 2500 W).

  • As its dry weight is 77 pounds, the Lifan ESI 2500iER-EFI is one of the heavier of the products which can generate 1500 to 2500 running watts. If weight is your top priority, one of the champions in this power category is the Champion 200949, weighing just 38.6 pounds.
  • Because this inverter generator emits noise as low as 58 dBA, it can be considered to have a pretty average expected noise rating for a device of its power. If noise emissions are important to you, one of the least noisy generators of this power range is the Honda EU2200i with only 48 dBA.
  • Since the ESI 2500iER-EFI boasts with a run time of around 12 hours at 50% load, it can be safely judged as a device of a higher run time than most generators of a comparable output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Westinghouse WGen2000, boasting with around 20 hours.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. At an estimated fuel consumption of 0.13 GPH (gallon per hour) at 50% load, this inverter generator is a rather fuel efficient one within its wattage category. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen2200, which boasts with a gas consumption of only 0.12 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 1500-2500W generators, the Lifan ESI 2500iER-EFI 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
  • Several accessories included
  • Remote start
  • Parallel capable
  • Inverter
  • Electronic Fuel Injection
  • High run time
  • Fuel efficient
AVERAGE SPECS:
  • Acceptable noise (58 dBA)
WEAKNESSES:
  • On the heavy side (77 lbs)

Do you own the Lifan ESI 2500iER-EFI and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableYes, cable not included
RV readyNo
FuelGasoline
Engine125 cc Lifan OHV 4-stroke
Starting systemRecoil, Electric, Remote
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts2400 W
Starting watts2500 W
Running amps20 amps
Peaks amps20.8 amps
Run time @50% load12 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets1x Duplex 120V 20A (5-20R)
DC outlets1x 12V 8A receptacle
Data centerPower output, fuel level, lifetime run hours and voltage
IndicatorsLow oil
Fuel tank1.5 gal
Fuel gaugeDigital
Misc
Weight77 lbs
Approx. dimensions (L x W x H)20.5 x 11 x 19 in
Noise (lower limit)58 dBA
THD< 2%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
Accessories includedTool kit, key fob, battery charger, RV adapter, battery charging cables, and battery
Warranty3 years
SeriesEnergy Storm

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.

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About Lifan

LIFAN, or rather LIFAN Power USA, is a rather small and new company, based in Arizona. LIFAN’s range is comprised of engines and related products, such as pressure washers, water pumps and of course, generators – of which there is a surprising variety, including inverters, portable generators, but also high output, standby home generators. The company admirably admits that their primary (and most likely only) manufacturing facilities are located in China and their goal is to provide affordable products above all.

Warranty Information

The Lifan ESI 2500iER-EFI 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 Lifan generators, please consult Lifan's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-866-471-7464.

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
Blender400850
Total1900 W2350 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Rice cooker650650
Set of 5 LED light bulbs5555
Total1895 W2485 W
For workDemolition hammer12601260
Drill600900
Total1860 W2160 W

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