Black Jack Mini, Master or Maxi: Which Electric Jack is Right for You?

Black Jack has been long known for delivering high-quality, innovative products that simplify trailer and caravan management. In 2025 they have raised the bar once again with the launch of a new generation of electric-powered trailer jacks: the Black Jack Mini, Black Jack Master and Black Jack Maxi.

Mini, Master or Maxi? Which one is right for you?

Let’s explore the features and benefits of each product to help you make the best choice for your individual setup. Let’s start with the Black Jack Mini.

Black Jack Mini: Compact Powerhouse

The Black Jack Mini stands out as the simplest, lightest, and most affordable electric jockey wheel available today. As Australia's only electric jack compatible with a standard 50mm jockey wheel clamp, its installation is straightforward: screw it into your existing jockey wheel fitting, connect the Anderson plug, and it's ready for use.

3 Key Features of the Black Jack Mini:

1. Robust Performance

Despite its compact size, the Black Jack Mini boasts a lifting capacity of 1,000 kg, suitable for most Australian caravans and trailers up to 3500kg. Weighing only 8.5 kg, it's designed for effortless operation, allowing users to lift their caravans with the push of a button.

2. User-Friendly Installation 

With a pre-wired Anderson plug connection, the Black Jack Mini offers a plug-and-play setup, eliminating the need for complicated installations or modifications. Its design includes three different mounting notches, enabling users to position the jack for optimal lift and storage.

3. Three-year warranty.

All Black Jack products (including the trailer jack, spare parts and accessories) come with a 3-year warranty from the date of purchase. If the Black Jack Trailer Jack fails due to an internal mechanical manufacturing defect, we will replace it.

What’s included in the Black Jack Mini Kit

Compact, powerful, and built for effortless trailer lifting.

• All-Weather Cover
  Protects your jack from the elements and ensures long-lasting performance.

• Soft Ground Foot Pad
  Provides stability on soft surfaces, preventing sinking or slipping.

• Manual Handle
  Allows for manual operation when needed, ensuring reliability even without power.

Why Choose the Black Jack Mini?

The Black Jack Mini is the entry-level model in the range, it's compact, affordable, and built with the same quality engineering as its bigger brothers. If the following points sound like you, the Mini is a perfect fit:

• Great Value: You appreciate a lower price point, with an RRP of just $375.

• Easy Fitment: Your caravan or trailer already has a 50 mm jockey wheel clamp, meaning the Mini can be installed straight in and remain permanently mounted.

• Adjustable Mounting: With three mounting positions, you can easily fine-tune the height to suit your setup.

• Ideal for Lighter Vans: Best suited for caravans or trailers around 2,000–3,500 kg with a tow ball weight between 200–350 kg.

• Space-Saving Design: Perfect for A-frames with limited space where the Black Jack Clamp (required for the Master and Maxi) might not fit.

Black Jack Master: Middle Magic

The Black Jack Master is the newest addition to the Black Jack family, sitting perfectly between the Mini and the Maxi in both size and strength. Designed for caravans up to 4000 kg, the Master delivers the ideal balance of power, stability, and safety.

3 Key Features of the Black Jack Master:

1. Brute Strength

The Master boasts an impressive 1600 kg lifting capacity, giving you more than enough power to lift any caravan or trailer up to 4000 kg.

2. Simple to Install

Thanks to the Patented Black Jack Clamp Bracket, installation is quick and straightforward — no welding or complex mounting required.

3. 3-Year Warranty

All Black Jack products, including the Master, its accessories, and spare parts, are backed by a full 3-year warranty from the date of purchase for complete peace of mind.

What’s included in the Black Jack Master Kit

Every Black Jack Master comes complete with everything you need to get started straight out of the box.

• Black Jack Master with Safe Auto Stop
  The latest-generation Black Jack jack, featuring the built-in Safe Auto Stop that automatically cuts power at full extension or retraction, protecting both your jack and caravan from damage.

• Patented Black Jack Clamp Bracket
  A key part of the new design, the clamp bracket ensures simple and secure mounting to your A-frame. It eliminates the need for drilling or welding, making installation straightforward for DIY users.

• Black Jack Folding Foot
  Designed for convenience, the folding foot (Patent Pending) lets you store your jack neatly without removing it after each use, saving time and effort every time you set up or pack down.

• Black Jack All Weather Cover
  A durable protective cover that shields your jack from sun, rain, and dust, helping to keep it in top condition through every season.

• Black Jack Foot Pad
  Prevents the jack from sinking into softer ground or gravel surfaces, providing a stable base and better support when parked on uneven terrain.

• Manual Handle
  In the rare event of power loss, the included manual handle allows you to operate the jack manually, so you’re never left stuck on the road.

Together, these inclusions make the Black Jack Master a complete, ready-to-install system designed for long-lasting performance, ease of use, and maximum safety.

Why Choose the Black Jack Master?

The Black Jack Master sits right in the middle of the range — offering a great balance of features, strength, and value. If the following points apply to you, the Master is likely the best fit:

• Excellent Value: You appreciate a mid-range price point, with the Master priced at $525, compared to $635 for the Maxi.

• Right Power for Your Setup: Your caravan or trailer is around 3,000–4,000 kg with a tow ball weight between 250–400 kg, so you don’t need the extra lift capacity, remote control, or ball bearing worm drive that come with the Maxi.

• Easy Installation: You have enough room on your chassis A-frame to install the Black Jack Clamp, which is required for this model.

• Convenient Folding Foot: You value the folding foot feature included with the Master, allowing for quick storage and setup without removal.

With its combination of strength, smart safety features, and simple installation, the Black Jack Master is a versatile all-rounder for most caravans and trailers.

Black Jack Maxi: Heavy-Duty Excellence

For those requiring more robust capabilities, the Black Jack Maxi Electric Powered Trailer Jack offers enhanced features to handle heavier loads and provide greater convenience.

3 Key Features of the Black Jack Maxi:

1. Enhanced Lifting Capacity

The new Black Jack Maxi boasts a ball bearing worm drive that is twice as efficient, faster and quieter, and generates a massive lift capacity of 2,000kg.

2. Durable Construction

Built with heavy-duty materials, the Maxi ensures longevity and reliable performance, even under demanding conditions.

3. Advanced Features

The Maxi model includes additional functionalities such as an integrated level indicator and a built-in LED light, facilitating easier operation during low-light conditions.

What’s included in the Black Jack Maxi Kit

Built for heavy-duty lifting, this electric jack delivers exceptional strength and efficiency, simplifying the process of lifting and stabilizing larger trailers.

• Patented Black Jack Clamp with Full Bolt Kit
  Ensures a secure and stable attachment, offering peace of mind and reducing the risk of movement during towing or stationary periods.

• Folding Foot and Adjustable Foot
  Designed for versatility, these components allow for flexibility in setting up the jack on varying terrains and storage configurations.

• All-Weather Cover
  Keeps the jack protected from harsh weather conditions, ensuring long-lasting performance and durability.

• Black Jack Soft Ground Foot Pad
  Provides stable placement on soft or uneven ground, preventing sinking or slippage.

• Manual Handle
  Offers a backup solution for manual operation, ensuring you can always lift your trailer even without power.

• Installation Wiring Harness (Included with BJTJ-Maxi-1001)
  This harness includes a pre-wired Anderson plug at one end, a 30-amp inline fuse, and battery terminals at the other end. The 5 meters of positive and negative B&S #8 wires are encased in a protective cover.

Why Choose the Black Jack Maxi?

The Black Jack Maxi is the top-of-the-range model: fully featured, powerful, and built for those who want the very best. If these points sound like you, the Maxi is your match:

• Premium Performance: You value convenience and performance, with the remote control for easy operation and the ball bearing worm drive that makes the Maxi quieter, faster, stronger, and more efficient.

• Top-Tier Choice: Price isn’t the deciding factor, you simply want the best of the best.

• Built for Bigger Setups: Your caravan or trailer is on the larger side, around 3,000–4,500 kg with a tow ball weight between 350–450 kg.

• Convenient Folding Foot: You appreciate the folding foot feature included with the Maxi for quick and simple setup.

• Extra Power on Hand: You might not need the full 2,000 kg lift capacity, but having that extra strength and performance is always a welcome advantage.

If you’re after the ultimate in electric trailer jack technology, the Black Jack Maxi delivers on every front.

Let’s Compare: What do the Black Jack Mini, Master and Maxi have in common?

• Electric-Powered Operation:
  All three models offer effortless, electric-powered lifting, making hitching, unhitching, and stabilising your caravan or trailer quick and easy.

• Auto Safety Stop:
  Each model in the new generation includes the Black Jack Safe Auto Stop, which automatically cuts power when the jack reaches full extension or retraction. This prevents over-travel and protects both your jack and caravan from accidental damage.

• Ease of Use:
  All three jacks are designed for straightforward installation and operation, suitable for every type of caravan or trailer owner.

• Durability:
  Constructed from high-quality materials and finished with a tough powder coat, every Black Jack is engineered to withstand the harsh Australian climate and deliver long-lasting performance.

• Warranty:
  Every Black Jack comes with a full 3-year warranty, covering the jack, accessories, and spare parts for complete peace of mind.

• All-Weather Protection:
  Each model includes a durable All-Weather Cover, offering added protection from sun, rain, and dust to extend product life.

• Soft Ground Foot Pad:
  Every jack is supplied with a Soft Ground Foot Pad, designed to provide extra stability and prevent sinking or slipping on soft or uneven terrain.

• Manual Operation Backup:
  Each model is equipped with a Manual Handle, allowing manual lifting if needed, ensuring reliable operation even without power.

• Anderson Plug Connection:
  All three jacks include a pre-wired Anderson plug connection for simple, plug-and-play setup with minimal installation time.

And what about the differences?

The below overview outlines the main differences in specifications and features between Black Jack Mini, Master and Maxi.

Conclusion: Which Black Jack is best for you?

The Black Jack Mini, Black Jack Master and Black Jack Maxi share several essential features that make them stand out. They are ball electric-powered for effortless trailer lifting and come with an all-weather cover, soft ground foot pad, and manual handle for backup operation.

Each model is designed for durability, with high-quality construction to withstand Australia's harsh conditions. The inclusion of an Anderson plug ensures simple, plug-and-play installation. Plus, all models are backed by an unconditional 3-year warranty, offering peace of mind for long-term use.

The main difference between the Black Jack Mini, Master and Maxi is their lifting capacity. The Mini is ideal for lighter setups with a lifting capacity of 1,000 kg, the Master is an in between with a capacity of 1,600 kg and the Maxi is designed for heavier loads with a capacity of 2,000 kg. 

Another difference is the compatibility with existing Jockey Wheel Clamps. The Black Jack Mini has been designed and developed so it fits a standard jockey wheel’s clamp with a 50mm diameter, while the Black Jack Master and Maxi are more robust at 60mm. So, the Black Jack Master and Maxi will not fit in a standard jockey wheel clamp.

Depending on your towing needs, choose the one that best suits your setup. And if you're still unsure, our team at Carac is always happy to help you make the right decision. We're here to ensure your trailer experience is as smooth and effortless as possible.