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Lifan ESI 4000iER-EFI-CA Spec Review

The Lifan ESI 4000iER-EFI-CA is a quiet and compact portable inverter generator with a rated wattage of 3800 W and a starting wattage of 4100 W.

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Set an alert for the Lifan ESI 4000iER-EFI-CA - Current lowest price: $1,140.51
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Price history for the Lifan ESI 4000iER-EFI-CA
Latest updates:
  • $1,140.51 - September 27, 2020
  • $1,095.51 - September 19, 2020
  • $1,050.51 - September 8, 2020
  • $1,005.51 - August 24, 2020
Data source: homedepot.com
Since: August 24, 2020
  • Highest Price: $1,140.51 - September 27, 2020
  • Lowest Price: $1,005.51 - August 24, 2020

Description

LIFAN Power USA’s Energy Storm ESI4000iER-EFI is part of our Electronic Fuel Injected (EFI) Digital Inverter Generator Series. The ESI4000iER features Electric Start and Remote Start/Stop Control (remote key fob included), produces “Clean Power” with a Sine Wave Distortion of less than 2%! This unit is a perfect fit for Camping, RVing, Tailgating, or General Use around the house! (source: Lifan (opens in a new tab))

Zoom on the Lifan ESI 4000iER-EFI-CA

In summary, the Lifan ESI 4000iER-EFI-CA is a quiet and compact portable inverter generator especially useful for:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in outdoor fairs, festivals or events
  • Homeowners in need of an emergency backup power for their essentials
  • Camping and tailgating hobbyists looking for a portable power source

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 4000iER-EFI-CA's engine, 270 cc Lifan OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 3800W and reaches a peak wattage of 4100W.

The inverter generator is rated for a noise of 57 dBA (less noisy than a conversation at home). Its starting mechanisms include a simple traditional pull-start mechanism and a simple and elegant electric starter (battery included). The ESI 4000iER-EFI-CA can also be remotely started, offering further convenience (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.

Thanks to a fuel capacity of 3.5 gallons, the ESI 4000iER-EFI-CA can operate for around 12 hours at 50% load with a full tank (fuel consumption around 0.29 GPH).

The ESI 4000iER-EFI-CA produces a clean sine wave: thanks to a <2% Total Harmonic Disruption (THD), your sensitive electronics can be safely plugged in the AC outlets.

Outlets

The control panel features the upcoming 4 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (L5-30R) receptacle
120V 30A (TT-30R) receptacle

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

This Lifan generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

As the Lifan ESI 4000iER-EFI-CA is an inverter generator, its encased design (L24 x W18 x H20 in) offers more aesthetics than a conventional, open frame product. The generator has a contemporary design, convenient for recreationally generating power.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 132 lbs make it incredibly difficult to manually lift and transport. Nevertheless, it can still be moved quite conveniently with the help of its wheel kit and its folding handle, once it is placed on the ground.

Features

Panel of the Lifan ESI 4000iER-EFI-CA

The ESI 4000iER-EFI-CA's control panel

Monitoring of the ESI 4000iER-EFI-CA's status and activity is made possible by a digital data center, which provides information on the fuel level, voltage, lifetime run hours and power output and is one of the features of its control panel.

In addition to this info, a light indicator shows you if its oil levels are insufficient.

Thanks to a built-in fuel gauge, the inverter generator allows you to quickly, conveniently and easily check the gas level at a glance.

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Lifan ESI 4000iER-EFI-CA's package also includes these accessories: battery charging cables, RV adapter, tool kit, battery charger and key fob.

Emissions

The Lifan ESI 4000iER-EFI-CA 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 and thus, may be used in forested areas.

The Lifan ESI 4000iER-EFI-CA versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Lifan ESI 4000iER-EFI-CA compare to generators of similar power (between 3500 and 4500 W).

  • At a weight of 132 pounds, the Lifan ESI 4000iER-EFI-CA places in the expected weight range of the generators in the 3500-4500 rated wattage range. If weight matters to you, one of the champions in this power range is the WEN GN400i with only 66.1 pounds.
  • With a lowest possible noise of 57 dBA, this inverter generator places itself amongst the more quiet of the products delivering similar power. For those who are looking for a less noisy device, we suggest the Cummins Onan P4500i. With just 52 dBA, it is one of the most quiet devices in this power range.
  • The ESI 4000iER-EFI-CA, offering a run time of around 12 hours with a full tank at a 50% load, falls within the average autonomy range when compared to its peers. 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 Honda EB4000X, with around 16 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. This inverter generator can be considered as fuel efficient, due to its low estimated fuel consumption of only 0.29 GPH (gallon per hour) at 50% load, within the aforementioned wattage range. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen4200, which boasts with a gas consumption of only 0.17 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Lifan ESI 4000iER-EFI-CA 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
  • RV Ready
  • Remote start
  • Inverter
  • Electronic Fuel Injection
  • Quiet for its power (57 dBA)
  • Fuel efficient
AVERAGE SPECS:
  • Decent weight (132 lbs)
  • Decent run time
WEAKNESSES:
  • No parallel ports

Do you own the Lifan ESI 4000iER-EFI-CA and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableNo
RV readyYes
FuelGasoline
Engine270 cc Lifan OHV 4-stroke
Starting systemRecoil, Electric, Remote
Power
VoltageAC: 120V 60 Hz, DC: 12V
Running watts3800 W
Starting watts4100 W
Running amps31.7 amps
Peaks amps34.2 amps
Run time @50% load12 h
Run time @25% loadN/A
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationInverter
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (L5-30R)
  • 1x 120V 30A (TT-30R)
DC outlets1x 12V 8A receptacle
Data centerPower output, fuel level, lifetime run hours and voltage
IndicatorsLow oil
Fuel tank3.5 gal
Fuel gaugeYes
Misc
Weight132 lbs
Approx. dimensions (L x W x H)24 x 18 x 20 in
Noise (lower limit)57 dBA
THD< 2%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
Accessories includedTool kit, key fob, battery charger, RV adapter, battery charging cables and battery
Warranty3 years

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 4000iER-EFI-CA 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 homeRefrigerator (energy star)1921192
Hair dryer18001900
Washing machine9001650
Radio100100
Pair of small speakers4545
Total3037 W4037 W
For campingRadiant heater13001300
RV refrigerator180600
Electric fry pan15001500
Set of 5 LED light bulbs5555
Total3035 W3455 W
For workGrinder14002500
Demolition hammer12601260
Drain cleaner250250
Bug zapper8080
Total2990 W4090 W

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