Power loss, remote work, or outdoor adventures—whatever your situation, having access to dependable, portable power isn't just convenient; it's essential. For Aussies looking for powerful and efficient off-grid energy solutions, Redback inverter generators deliver the performance you need with the reliability you can trust.
In this guide, we'll take a look at two of the best portable inverter generators in Australia—the Redback RB3.5 and RB4.5.
Why Choose a Portable Inverter Generator?
Unlike traditional generators, inverter generators offer cleaner, more stable power—ideal for sensitive electronics like laptops, phones, and smart devices. They're also quieter, more compact, and fuel-efficient, making them an excellent choice for tradies, campers, off-grid homeowners, and anyone who needs mobile power without the bulk or noise.
Key benefits of inverter generators:
- Low noise levels – great for both residential and outdoor use
- Compact and portable – easy to move, store, and transport
- Fuel efficiency – thanks to smart engine control
- Safe for electronics – pure sine wave output protects devices
At Voltage Electrical Supplies, we proudly stock Redback's leading models, trusted for durability and performance across Australia.
Meet the Best-rated Portable Inverter Generators: Redback RB3.5 and Redback RB4.5
Redback RB3.5 – 3500W / 3.5kVA Inverter Generator
The Redback RB3.5 is an excellent choice for general-purpose use, ideal for tradies and home users alike.
Specs and Highlights:
- Max Output: 3500W | Rated Output: 3200W
- Quiet operation: Runs smoother and quieter than standard generators
- User-friendly: Easy start-up, intuitive controls
- Lightweight design: Built-in wheels and handles make transport a breeze
It's compact, powerful, and perfect for use on job sites, at campsites, or during emergency outages at home.
Redback RB4.5 – 4500W / 4.5kVA EFI Inverter Generator
Need a little more power? The RB4.5 is designed for higher load demands, with Electronic Fuel Injection (EFI) for greater efficiency and longer run times.
Specs and Highlights:
- Max Output: 4500W | Rated Output: 4000W
- EFI Technology: Automatically adjusts fuel delivery based on load
- Heavy-duty performance: Perfect for power tools, appliances, or off-grid setups
- Rugged frame: Designed to endure Australian conditions
This model is the go-to for serious users who need reliable power across multiple applications.
Redback RB3.5 vs. RB4.5: Which Portable Generator Suits You?
| Feature | Redback RB3.5 | Redback RB4.5 |
|---|---|---|
| Max Output | 3500W | 4500W |
| Rated Power | 3200W | 4000W |
| Engine | 145cc OHV | EFI Engine |
| Noise Level | ~62 dB | ~63 dB |
| Ideal For | Camping, home backup, DIY | Trades, off-grid living, food trucks |
| Price Range | More budget-friendly | Premium performance option |
Shop Redback Generators Online in Australia
Voltage Electrical Supplies offers genuine Redback portable inverter generators at competitive prices with fast Australia-wide shipping. We’re an authorised retailer, so you can buy with confidence knowing you're getting manufacturer-backed quality and support.
Key Takeaway
Redback generators combine portability, clean power, and rugged reliability—perfect for Australian conditions. Whether you're looking for a compact power solution for camping or a robust inverter for your worksite, the RB3.5 and RB4.5 are two of the best portable generator options in the market today.
Don't wait until the next power outage or project delay—secure your Redback inverter generator today.