Why Choose ULTRA-X?

Built, tested and supported by Australia’s off-grid adventure specialists.

KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery Slimline Limited Edition

SPECIFICATIONS

Technical Details
Voltage 12.8V
Capacity 230Ah
Cell Type Prismatic
Max Continuous Discharge 230A
Max Continuous Charge 230A
Peak Discharge 430A (30s)
Max Charge Temp 60°C
Min Charge Temp 0°C
Max Discharge Temp 65°C
Min Discharge Temp -20°C
Cycle Life 4000+ cycles | 80% DoD | 1C Charge / 0.5C Discharge
Bluetooth Yes
Remote Display Optional
Parallel / Series 4 | 4
Parallel / Series Remote Monitoring Bluetooth | Remote Display
Dimensions (Battery) 450 x 70 x 500 mm
Dimensions (with Terminals and Housing) 510 x 70 x 540mm
Weight 26.9 kg
Certifications IEC62619
Warranty 5 years
User Manual & Support Docs
KickAss Ultra-X 230Ah 12V Deep Cycle Lithium Battery - Slimline BLACK EDITION
Detailed Description

KickAss Features:

  • Limited Edition Matte Black Finish
  • Ultra Compact, Slimline Design
  • Bluetooth App Monitoring
  • Advanced BMS with Multiple Safety Protections
  • Parallel or Series Connection Capability
  • Monitor Battery Bank Remotely
  • 230Ah Usable Capacity
  • 230A Continuous Charge & Discharge (460A Pulse)
  • 4000+ Cycles @ 80% DoD (0.5C)
  • Metal Case with Integrated Mounting Points
  • Australian Safety Certified
  • Designed & Developed in Australia

Limited Edition Matte Black Design

This exclusive Black Edition takes our proven Ultra-X Slim battery and gives it a bold, premium look. Built for performance and style, it’s finished in a sleek matte black coating that stands out in any setup — whether it’s in a high-end canopy build or a custom 12V fit-out.

Ultra Compact, Slimline Power

Measuring only 500mm x 510mm x 70mm, the Ultra-X Slim Black Edition delivers massive power in a compact form. Perfect for tight installs behind seats, under false floors, or in canopies, it’s the ultimate space-saving powerhouse for serious off-grid adventurers.

Smart Bluetooth App Monitoring

Get real-time insight into your battery’s performance using the Bluetooth app. Track your State of Charge, voltage, current, temperature, and system alerts straight from your phone — giving you complete control over your setup, wherever you are.

Advanced BMS for Complete Protection

Equipped with a high-performance Battery Management System (BMS), this battery safeguards against overcharge, over-discharge, short circuits, and overheating. The BMS ensures stable, efficient, and reliable power delivery no matter how tough the conditions.

Expand Your Power — Parallel or Series Ready

Need more power? Connect multiple Ultra-X Black Edition batteries in parallel or series to create a massive battery bank — up to 900Ah of usable capacity. Ideal for powering caravans, canopies, 4WDs, and off-grid systems for extended adventures.

Monitor Remotely with Ease

Forget complex wiring — simply connect your batteries with an RJ45 cable for seamless integration with the KickAss Remote Display Unit (RDU). You can also monitor everything via the Bluetooth app, no external shunt required.

Engineered for Endurance

Delivering over 4000+ cycles at 80% Depth of Discharge (DoD) and a 0.5C rate, the Ultra-X Slim Black Edition is built to last. With 230A continuous charge/discharge and a 460A pulse capacity, it powers even the most demanding 12V setups.

Durable Metal Case with Integrated Mounting Points

The heavy-duty metal casing provides maximum protection while simplifying installation. Integrated mounting points make for a secure, professional finish — and the matte black exterior adds a touch of rugged sophistication.

CUSTOMER REVIEWS

4.9
Rated 4.9 out of 5 stars
Based on 61 reviews
Total 5 star reviews: 56 Total 4 star reviews: 2 Total 3 star reviews: 3 Total 2 star reviews: 0 Total 1 star reviews: 0
Slide 1 selected
61 reviews
  • Ahmed
    Verified Buyer
    Reviewing
    KickAss Smart 12V 230Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Ultra-X

    Great product so far, suited the behind the back seat of the Hilux Ute perfectly.

  • Stefan D.
    Verified Buyer
    Reviewing
    KickAss Smart 12V 230Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Great Battery

    Very happy with Battery and its function and size. Have it mounted in canopy and works well.

  • Chris B.
    Verified Buyer
    Reviewing
    KickAss Smart 12V 230Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4
    I recommend this product
    Rated 5 out of 5 stars
    3 minutes ago
    Service from front counter.

    Have bought quite a lot of products for my campervan.

    Service from the staff has always been friendly and very informative when required.

    Will I continue to buy from Kickass, of course.

    Kickass will always be my first port of call prior to shopping around.

    Thanks for the great service.

    Regards.

  • Mr E. G. G.
    Verified Buyer
    Reviewing
    KickAss Smart 12V 230Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Perfect

    Sick

  • Craig B.
    Verified Buyer
    Reviewing
    KickAss Smart 12V 230Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Awesome Battery

    Great Quality. Wired to the KA Powerboss working awesome.

Frequently Asked Questions

What makes the KickAss Ultra-X Slimline battery a great choice for my off-grid setup?
The KickAss Ultra-X Slimline battery offers a robust 230Ah rated capacity and 2944Wh of energy, ensuring reliable power for your adventures. It delivers a powerful 230A maximum continuous discharge current, with a pulse discharge current of 460A for 30 seconds, making it ideal for demanding applications. This LiFePO4 battery is designed for longevity, providing an impressive 4000 cycles at 80% Depth of Discharge (DOD).
Can I connect multiple KickAss Ultra-X Slimline batteries together for more power?
Absolutely, you can connect up to four KickAss Ultra-X Slimline batteries in either a parallel or series configuration to expand your power system. In a parallel setup, the total capacity and continuous charge/discharge ratings increase, while in a series setup, the system voltage increases. For optimal performance and safety, it is crucial to only connect batteries of the same model and batch.
How can I monitor the performance of my KickAss Ultra-X Slimline battery?
You can conveniently monitor your KickAss Ultra-X Slimline battery's performance using either the KA Lithium App via Bluetooth or a dedicated remote display connected with an RJ45 cable. Both options provide real-time data on State of Charge (SOC), battery pack voltage, charge/discharge current, power usage, and temperature. The app also estimates time to full/empty and tracks cycle count, ensuring you're always informed about your battery's status.
What safety features are built into the KickAss Ultra-X Slimline battery?
The KickAss Ultra-X Slimline battery is equipped with an advanced Battery Management System (BMS) that continuously monitors critical parameters like cell voltage, charge/discharge rates, and temperature to ensure safe operation. This system includes protective measures against under/over voltage, overcharge/discharge current, short circuits, and extreme temperatures. The battery is also IEC62619 certified, providing peace of mind that it meets stringent safety standards.
What are the physical dimensions and weight of the KickAss Ultra-X Slimline battery?
The KickAss Ultra-X Slimline battery is designed with a compact footprint, measuring 500 mm in length, 70 mm in width, and 510 mm in height. Weighing in at 26.9 kg, its slimline design makes it an excellent choice for installations where space is at a premium. This allows for flexible placement in various off-grid setups without compromising on power or performance.
What is the recommended charging temperature range for the Ultra-X Slimline battery?
For optimal performance and longevity, the KickAss Ultra-X Slimline battery should be charged within a temperature range of 0°C to +55°C. The integrated Battery Management System (BMS) actively monitors the battery's temperature and will implement protective measures if conditions fall outside this safe operating window. Always ensure the battery is installed in a well-ventilated area to prevent overheating during charging.
What kind of charger should I use with my KickAss Ultra-X Slimline battery?
It is essential to use a charger specifically designed for lithium batteries with your KickAss Ultra-X Slimline battery to ensure its safety and maximise its lifespan. The battery has a maximum charge voltage of 14.6V, and the Battery Management System (BMS) will prevent overcharging by monitoring the voltage and current limits. Using an incorrect charger could potentially damage the battery or create a safety hazard, so always verify compatibility.
FIND A KICKASS INSTALLER

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BOOK A 1-ON-1 CHAT WITH A 12V EXPERT

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VISIT A KICKASS RETAIL STORE

Drop into our Brisbane, Sunshine Coast, Sydney, Melbourne, or Perth stores for friendly expert advice and hands-on support.

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