About Outbax

We provide your camping and outdoor needs at consistently low prices,
without compromising quality.

At Outbax, our team of 30+ staff are passionate about offering quality products at a low price.

Customer service is the core of our business. We have 12 full-time customer service champions to answer all of your queries and you’ll never be caught unaware with our 60-day money back guarantee.

Generator Sizes

All generators are not made alike, and in fact, there is a wide range of generator sizes, shapes, and types. Generator sizes range from the smallest generator that can power up your phone and other devices, small generators for camping, a generator for a caravan and right up to very large standby generators, which an electrician can install at your home in case of a power outage. Essentially, a generator will provide power when you are unable to get it from the grid or from solar or wind power if you are off-grid. They can be used to add a little comfort to your camping trip or to keep essential appliances and devices running at home. Either way, a generator is a very useful piece of equipment to own. Read more

15 products fitting your needs

Set Descending Direction

NEW 2022 Design GenTrax 2KW Max 1.6KW Rated Inverter Generator

Rating:
100%
5 Stars
Special Price $469.00 Regular Price $1,399.00

SPECIAL INTRO OFFER!
PLUS a further 10% off using code GENTRAX10
Pay only $422.10 with FREE Shipping to most areas!

HURRY! Promo ends Monday, May 30th 11:59pm AEST

  • Extremely Portable & Lightweight
  • Convenient 3.0L Fuel Tank
  • Easy pull start with adjustable choke
  • Super Quiet Operating Noise Level (7m) 58dB At Idle
  • Digital Inverter/Pure Sine Wave Output
  • Dual USB Ports
Learn More
New

GenTrax 3.5kW Remote Start Pure Sine Wave Petrol Inverter Camping Generator

Rating:
100%
5 Stars
Special Price $1,049.00 Regular Price $2,699.00
  • Portable at 38kgs, built-in wheels for transportation
  • 7.5L fuel capacity for 5.5 hour run time
  • Runs quietly at 58dB @ 7 metres
  • LCD digital display shows output and running time
  • Wireless remote allows you to operate the unit from up to 10m away
  • Built-in 5V USB Port
Learn More
Best-seller

GenTrax 2.2kW Premium Inverter Generator Petrol Pure Sine Wave

Rating:
100%
5 Stars
Special Price $699.00 Regular Price $1,599.00
  • Hassle-free oil replacement and maintenance
  • Extra noise reduction - 59dB @ 7m
  • Easy electric start function
  • 12V DC output and cigarette light socket
  • 1 USB terminal for charging electronics
Learn More
Pre-order

GenTrax 800W Mini Pure Sine Wave Petrol Inverter Camping Generator

Rating:
100%
5 Stars
Special Price $329.00 Regular Price $999.00
  • Lightweight and portable at 8.5kgs
  • Pure Sine Wave – won’t interfere with with sensitive electronics
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • Up to 6 hours run-time
  • 4-stroke start – quick and easy to turn on
Learn More
On sale

GenTrax 2kW Pure Sine Wave Inverter Petrol Portable Camping Generator

Rating:
97%
4.85 Stars
Special Price $539.00 Regular Price $1,499.00
  • Incredible 9-hour run-time
  • Lightweight and portable at 18.5kgs
  • Pure Sine Wave – won’t interfere with with sensitive electronics
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • Low-oil level alert prevents engine damage
Learn More
Best-seller

GenTrax 1.2kW Pure Sine Wave Petrol Inverter Camping Generator

Rating:
95%
4.75 Stars
Special Price $419.00 Regular Price $1,199.00

 

  • Compact and lightweight at 12.5kgs
  • Pure Sine Wave – won’t interfere with with sensitive electronics
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • 3L fuel tank provides a 6.6 hours run time at 50% load
  • Perfect for camping and emergency backup
Learn More
On sale

GenTrax 800W Max Rated Portable Pure Sine Wave Super Premium Inverter Generator

Rating:
100%
5 Stars
Special Price $419.00 Regular Price $919.00
  • Light and Portable at 9.3 kgs
  • Pure Sine Wave to Protect Sensitive Gadgets
  • Hassle-Free Oil Change
  • 12V DC Output with Cigarette Lighter Socket
  • 1 USB port to power your electronics
Learn More
On sale

GenTrax 3.5kW Pure Sine Wave Petrol Inverter Camping Generator

Rating:
93%
4.65 Stars
Special Price $789.00 Regular Price $1,999.00

Rated Australia's Best Generator Since 2018!
Plus FREE SHIPPING* to most areas!

  • Lightweight and portable at 28kgs
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • Can power everything from lights to air conditioning
  • Up to 8 hours run time
  • Dual Australian-approved weatherproof 15Amp AC outlets
  • Charge batteries –12V 5Amp outlet (free battery clips included)
Learn More
Best-seller

GenTrax 2.5kW Pure Sine Wave Petrol Inverter Camping Generator

Rating:
90%
4.5 Stars
Special Price $679.00 Regular Price $1,799.00
  • 100% Pure Sine Wave: Tested with Sensitive Equipment
  • Low oil shutdown safeguards engine from damage
  • Super Quiet: 58Db@7m
  • 8 Hours Continuous Running Time (Economy Mode)
  • Super Easy Recoil Start
Learn More
On sale

GenTrax 6KW Pure Sine Wave Inverter Generator

Rating:
95%
4.75 Stars
Special Price $2,099.00 Regular Price $3,999.00
  • Powerful engine output of 6KW/3600 RPM max
  • Key and remote start, LCD display for output and running time
  • Fuel-efficient and runs quietly at 62dB @ 7 metres
  • Biggest model available – can run shop back-up or construction site
  • Convenient wireless remote from up to 10m away
Learn More
On sale

15 products fitting your needs

Set Descending Direction

All generators are not made alike, and in fact, there is a wide range of generator sizes, shapes, and types. Generator sizes range from the smallest generator that can power up your phone and other devices, small generators for camping, a generator for a caravan and right up to very large standby generators, which an electrician can install at your home in case of a power outage. Essentially, a generator will provide power when you are unable to get it from the grid or from solar or wind power if you are off-grid. They can be used to add a little comfort to your camping trip or to keep essential appliances and devices running at home. Either way, a generator is a very useful piece of equipment to own.

How to choose the right size generator?

Choosing generator sizes comes down to a few basic factors – and a few calculations. It’s important to consider the following factors so you can get a good idea of the generator sizes that will be suitable for your power needs.

One of the things to consider is where you will put the generator – and what you will use it for. If you take your generator with you in a caravan or RV or on a camping trip, you will want a unit that is easily portable and not too large but still has the wattage capacity or kVA to handle the output you require. If you are transporting the generator to and from your campsite, size really matters. It also matters if space is at a premium in your vehicle as you don’t want a large generator taking up all your room – and then there is also the fuel that you may need to bring with you as well. For this sort of purpose, compact portable inverter generators are a great choice, and as a ballpark, a 2000w generator will be a good start.

However, suppose you are putting the generator somewhere outside your home to use as a standby generator in case of an outage of mains electric power. In that case, you are going to be looking at totally different generator sizes. A house generator will need to be large to carry the load required by all your consumer appliances. If you will have it installed with a transformer switch, it will not be moved around, so you don’t need to worry about portability, either.

When it comes to narrowing down generator sizes, that is where you need to look at the power the engine can supply, that is the electric current it will generate. This is where a generator size calculator might be useful to help you work out load calculations for generators. Basically, you need to check the wattage of all your appliances and devices and work out their running and start-up wattage, plus which ones you are going to run at the same time. Start-up wattage is the highest, so it needs to be taken into account. Adding up all the appliances you want to run at the same time, plus the start-up wattage of the largest one, should give you an idea of your overall necessary generator sizes.
How to maintain a generator?

Like everything that has a motor, generators require regular maintenance to keep them running smoothly and to make sure they are ready for power generation when you need them. This maintenance will occur at different intervals – annually, monthly - and the more you use the generator, the more you will need to take care of it to keep it going well. Not that you can neglect one that doesn’t get used often – it’s important to run a generator regularly to make sure that the battery is kept fresh and charged. When this is happening, it’s a good time to also do a visual check to make sure everything is in good condition and that the generator is clean. Any debris, such as dust or leaves, can block up vents, for example, and stop the generator from self-cooling. Other maintenance that should take place regularly is checking the engine oil and the coolant and topping those up as necessary. There should also be a check of spark plugs and the air filter and fuel lines and clean as needed. If they are beyond repair or cleaning, then new ones will need to be installed. The alternator should be checked and cleaned, and if there is a transfer switch, that also needs inspecting. Some of these checks will have to be done by a qualified technician to ensure they are done properly and safely.

Where can I buy the best generator near me?

Whether you are looking for generators in Melbourne, Mackay, or any other location in Australia, Outbax offers generators for sale for all types of power needs. We can advise you on generator types – from a petrol generator to marine generators and everything in between and on generator sizes. If you have any questions, please get in touch. We offer fast automated shipping to get your goods to you, so your power needs can be fulfilled quickly.