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Lifan ESI 2500iER-EFI Spec Review

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

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Price history for the Lifan ESI 2500iER-EFI
Latest updates:
  • $748.22 - October 15, 2020
  • $1,130.88 - October 14, 2020
  • $748.22 - August 25, 2020
Data source: walmart.com
Since: August 25, 2020
  • Highest Price: $1,130.88 - October 14, 2020
  • Lowest Price: $748.22 - August 25, 2020

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:

  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Amateur DIY lovers

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Lifan ESI 2500iER-EFI's core is the 125 cc (4 hp) Lifan OHV 4-stroke engine, which runs on gasoline. With an output of 120V, it provides a running wattage of 2400W and a peak wattage of 2500W. Additionally, as the generator is parallel capable (Duo Power parallel kit (opens in a new tab) not included), it can be linked to a second unit for more power.

Enjoying a noise rating of 58 dBA (less noisy than a quiet suburb), this inverter generator can be started thanks to a conventional pull-start mechanism, but also to a convenient and easy-to-use electric starter (battery included). Moreover, to offer you even more convenience, the ESI 2500iER-EFI can 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 ESI 2500iER-EFI can operate for around 12 hours at 50% load with a full tank (fuel consumption around 0.13 GPH), due to its fuel capacity of 1.5 gallon.

The ESI 2500iER-EFI generates a clean sine wave: providing <2% Total Harmonic Disruption (THD), delicate electronics can be plugged in its AC outlets safely.

Outlets

The control panel includes the following 2 AC outlets:

Duplex 120V 20A (5-20R)

Furthermore, it has 1 DC outlet: there's a 12V 8A receptacle with which charging your batteries is made easy.

Portability

The Lifan ESI 2500iER-EFI's characteristic encased inverter generator design (L20.5 x W11 x H19 in), provides an esthetical advantage over any ordinary, open frame product. 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. In addition, with its wheel kit and its handle (molded in the case), it may be shifted with ease, once placed the floor.

Features

Panel of the Lifan ESI 2500iER-EFI

The ESI 2500iER-EFI's control panel

Monitoring of the ESI 2500iER-EFI's status and activity is made possible by a digital data center, which provides information on the voltage, lifetime run hours, fuel level and power output and is one of the features of its control panel.

In addition to this info, the device’s light indicator will display if its oil levels are insufficient.

From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Lifan ESI 2500iER-EFI also is packed along with the following accessories: RV adapter, tool kit, battery charger, battery charging cables and key fob.

Emissions

The Lifan ESI 2500iER-EFI is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

Moreover, it features a spark arrestor, which makes it suitable for use 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).

  • Considering its dry weight of 77 pounds, the Lifan ESI 2500iER-EFI is one of the heavier generators producing between 1500 and 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.
  • Since the inverter generator's noise is rated at 58 dBA, it has the roughly average expected noise for a device of similar power. If noise emissions are one of your priorities, you may be interested in the Honda EU2200i, one of the least noisy generators similarly powerful as this one, rated for 48 dBA.
  • With a run time of around 12 hours at 50% load, the ESI 2500iER-EFI has one of the higher run times, compared to its similarly powerful peers. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Westinghouse WGen2000, as it provides around 20 hours.
  • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency 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 fuel consumption is your top priority, we suggest to check out the Westinghouse iGen2200, which has a fuel consumption of only 0.12 GPH and thus, is one of the most efficient devices in our database.

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% loadN/A
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.

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 wattage calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Clothes iron12701270
Cell phone charger2020
Total1482 W2482 W
For campingRadiant heater13001300
RV refrigerator180600
Blender400850
Cell phone charger2020
Total1900 W2350 W
For workDemolition hammer12601260
Paint sprayer600600
Total1860 W1860 W

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