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Briggs & Stratton 30708 Spec Review

The Briggs & Stratton 30708 is a portable open frame generator with a rated wattage of 5750 W and a starting wattage of 7185 W.

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Description

Keep your lights on, your food cold, your family connected – and more – during a power outage.

Zoom on the Briggs & Stratton 30708

In summary, the Briggs & Stratton 30708 is a portable generator especially useful for:

  • RV travellers looking for even more independence
  • People occasionally participating in outdoor fairs, festivals or events
  • Food van owners who know that just a short power outage could lose them hundreds of dollars
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals who want to be able to deliver results, even during a power failure

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 Briggs & Stratton 30708 is powered by a 389 cc Briggs & Stratton OHV 4-stroke engine. It delivers 120/240V, runs on gasoline and offers a running wattage of 5750W as well as a peak wattage of 7185W.

Its starting mechanism is based on a simple traditional pull-start mechanism.

Thanks to a fuel capacity of 7.5 gallons, the 30708 can operate for around 11.5 hours at 50% load with a full tank (fuel consumption around 0.65 GPH).

Outlets

The control panel provides the upcoming 7 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
Duplex 120V 20A (5-20R)
120/240V 30A (L14-30R) receptacle

As the 30708 holds a twist-lock L14-30R receptacle, it is transfer switch ready: you'll easily be able to connect it to your breaker box to power your home during a power outage.

Portability

The design of the Briggs & Stratton 30708 is a typical, open frame, with the dimensions of L29 x W21.5 x H25.5 in, offering support and stability and enabling the possibility of raising it above ground level. The generator is designed for ideal use outdoors and in rough environments.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 190 lbs. Nevertheless, thanks to its wheel kit (⌀10") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.

Features

Panel of the Briggs & Stratton 30708

The 30708's control panel

To help you monitor the 30708's status and activity, its control panel is equipped with a digital data center, giving you information on the lifetime run hours.

The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

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.

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Briggs & Stratton also included some oil in the 30708's packaging.

Emissions

The Briggs & Stratton 30708 is neither EPA approved nor CARB-compliant..

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

The Briggs & Stratton 30708 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Briggs & Stratton 30708 compare to generators of similar power (between 5500 and 6500 W).

  • With a dry weight of 190 pounds, the Briggs & Stratton 30708 finds itself in the expected weight range for generators able to produce between 5500 and 6500 rated watts. If weight matters to you, one of the champions in this power range is the Pulsar G65BN with only 126 pounds.
  • The 30708, falls within the average autonomy range compared to generators of a roughly same power, with a run time of around 11.5 hours at a 50% load and a full tank. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Cat RP5500, as it provides around 15 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 generator is rather wasteful, compared to other devices within the aforementioned output range, when it comes to gasoline consumption, as it reaches roughly 0.65 GPH at a 50% load. If you wish to acquire one of the most gasoline efficient products of this power range, the Lifan ESI 7000iER-EFI, with a fuel consumption of 0.38 GPH could be in your good books.

Price comparison

As you can see from this interactive chart, when compared to other 5500-6500W generators, the Briggs & Stratton 30708 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • GFCI Outlets
AVERAGE SPECS:
  • Decent weight (190 lbs)
  • Decent run time
WEAKNESSES:
  • No electric start
  • No EPA or CARB compliance
  • Low fuel efficiency

Do you own the Briggs & Stratton 30708 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine389 cc Briggs & Stratton OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120/240V 60 Hz
Running watts5750 W
Starting watts7185 W
Running amps (@120/240V)47.9/24 amps
Peak amps (@120/240V)59.9/29.9 amps
Run time @50% load11.5 h
Run time @25% loadUnknown
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120/240V 30A (L14-30R)
DC outletsNo
Data centerLifetime run hours
IndicatorsNo
Fuel tankMetal, 7.5 gal
Fuel gaugeYes
Misc
Weight190 lbs
Approx. dimensions (L x W x H)29 x 21.5 x 25.5 in
Noise (lower limit)Unknown
THDUnknown
EmissionsN/A
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil and wheel kit
Warranty2 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.

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About Briggs & Stratton

Founded in 1908, in Milwaukee, Wisconsin, Briggs & Stratton is a well renowned American based gasoline engine manufacturer. While the company mainly focuses on engines – including outdoor, power tool, karting, cast iron and aluminum models, power generators are a crucial component of their portfolio as well – Briggs & Stratton provides both portable and standby solutions for casual users with full support, including installation. The company operates on a global scale, with 13 facilities spread across all the of the continents.

Warranty Information

The Briggs & Stratton 30708 is covered under a warranty for up to 2 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Briggs & Stratton generators, please consult Briggs & Stratton's warranty policies stated in the user manual (opens in a new tab). Alternatively, you can also contact their Customer Support : 1-800-743-4115.

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 size calculator.
ItemRunning WattsStarting Watts
At homeDish washer15003000
Microwave (1000 watts)15001500
AC (10,000 BTU)15002200
Set of 5 LED light bulbs5555
Fan40120
Total4595 W6095 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Microwave (1000 watts)15001500
Radio100100
Total4590 W5180 W
For workTable saw18004500
Grinder14002500
Demolition hammer12601260
Total4460 W7160 W

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