Quality & testing

Why Choose ULTRA-X?

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

Developed & Manufactured In-House

KickAss ULTRA-X Lithium Batteries are developed and manufactured in-house at our own battery factory, giving us complete quality control.

Tested In-House & Proven in the Field

Every KickAss lithium battery is rigorously tested in-house and in real off-grid conditions, and certified to meet the highest Australian standards.

Built for Safety & Performance

A-grade prismatic cells and an intelligent BMS deliver dependable power with integrated safety protection.

Lifetime Customer Support

Get ongoing support online, in-store, or through our Australia-wide network of 150+ installers.

WHAT'S INCLUDED?

Everything that is included in this KickAss kit!

KickAss Smart 12V 120Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4 - Series 2
1 x KickAss Smart 12V 120Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4 - Series 2

At just 65mm thick, the KickAss Ultra-X 120Ah Slimline Lithium Battery is the slimmest 120Ah lithium battery on the market, packing 1536Wh of power into a design that fits behind vehicle seats and into tight spaces. With Bluetooth monitoring, 120A continuous charge and discharge, 4000+ cycles, an advanced BMS and a 7-year warranty, it's built for serious off-grid adventures.

The KickAss Smart 12V 120Ah Ultra-X Lithium Slimline Deep Cycle Battery delivers serious off-grid power in an exceptionally compact design. At just 65mm thick, it's the slimmest 120Ah lithium battery on the market, designed to fit into spaces where conventional deep cycle batteries simply won't. Tuck it behind vehicle seats, inside canopies or along ute tub walls, leaving more room for all your other gear. It's an ideal solution for 4WDs, caravans, camper trailers and off-grid touring setups where every millimetre counts.

Despite its slim profile, this battery delivers impressive power and performance. With 120Ah of usable capacity and 1536Wh of stored energy, this ultra-compact LiFePO4 battery has plenty of power to keep your camping fridge, lights, fans and other 12V essentials running. It also supports continuous charging and discharging at up to 120A, making it a capable choice for more demanding off-grid power systems. Premium A-grade prismatic LiFePO4 cells deliver consistent performance, with over 4000 cycles at 80% depth of discharge for years of reliable use.

Keeping track of your power is easy thanks to integrated Bluetooth connectivity. Simply connect to the KickAss app on your smartphone to monitor your battery's state of charge, voltage, current and temperature, or use a compatible remote monitoring screen for convenient access to your battery information. An advanced intelligent Battery Management System (BMS) works in the background to protect against overcharging, over-discharging, short circuits and excessive temperatures, while a low-voltage protection override switch provides an additional recovery option if your battery shuts down.

Installation is just as flexible as the battery itself. Mount it flat, upright or on its side to suit your available space, and take advantage of parallel and series configuration support for compatible multi-battery setups. With an IP65 dust and water resistance rating, support for AS/NZS 3001.2 compliant installations and a generous 7-year warranty, the KickAss Ultra-X 120Ah Slimline Lithium Battery proves that you don't need to sacrifice valuable space to enjoy serious off-grid power.

7 Year KickAss Warranty

This product is covered by a 7 Year Limited Warranty. Learn more.

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KickAss Flexicharge 12V 32A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries
1 x KickAss Flexicharge 12V 32A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries

Perfect for charging and maintaining most common battery chemistries (AGM, Lithium, LiFePO4 and Gel), its fast 32A charging mode will feed power in quickly and get you fully charged in no time.

KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V KickAss Flexicharge 32A Smart 12V

KickAss Flexicharge 32A Smart 12V Battery Charger – Feature Overview

Automatic 9-Stage Smart Charging
A high-tech microprocessor controls charging in 9 separate stages. It senses your battery's needs and delivers optimal current and voltage for maximum efficiency.

Fast Charge 32A Peak Output
Delivers up to 32A per hour, reducing charge time significantly. Combined with 9-stage charging, it ensures the best performance and protection for your battery.

Adjustable Output for Different Battery Sizes
Offers selectable output at 8A, 16A, or 32A, making it suitable for small and large batteries alike.

Compatible with Multiple Battery Chemistries
Works with AGM, Gel, Lithium, LiFePO4, and Lead Acid batteries. Adjustable output ensures safe and effective charging for each type.

Lithium Activation Mode
Restores lithium batteries that fall below BMS safety voltage. Trickle charges until the cut-in voltage is reached and resumes normal cycles.

AGM Recondition Mode
Revives AGM batteries by breaking down lead sulphate buildup. Ideal after deep discharges or long periods of disuse.

Multiple Protection Features
Includes reverse polarity, short circuit, and over-temperature protection to safeguard both charger and battery.

Connect via Anderson Connectors or Alligator Clips
Flexible connection options let you hook up directly to battery terminals or use a compatible battery box with Anderson input.

Fully Compliant
Certified to Australian standards for safety and performance.

1 Year KickAss Warranty

This product is covered by a 1 Year Limited Warranty. Learn more.

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SPECIFICATIONS

Technical Details
KickAss Flexicharge 12V 32A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries
Input Voltage / Frequency 220 ~ 240V / 50Hz
Charging Voltage 12V
Charging Current 8A / 16A / 32A Max
Certifications AS/NZS 60335.2.29:2017 + A1:2020
Dimensions 298 x 152 x 87mm
KickAss Smart 12V 120Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4 - Series 2
Battery Type LiFePO4
Nominal Voltage 12.8V
Rated Capacity 120Ah
Energy 1536Wh
Max Charge Voltage 14.6V
Charge Temperature 0 ~ 60°C
Max Continuous Charge Current 120A
Discharge Temperature -20 ~ 65°C
Max Continuous Discharge Current 120A
Low Voltage Cutout 10V
Certification IEC 62619, IP65
Cycle Life 4000+ @ 80% DoD
Dimensions without Brackets 46 cm (L) × 6.5 cm (W) × 30 cm (H)
Dimensions with Brackets 50.1 cm (L) × 6.5 cm (W) × 36 cm (H)
User Manual & Support Docs
KickAss Flexicharge 12V 32A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries
KickAss Smart 12V 120Ah Ultra-X Lithium Slimline Deep Cycle Battery LiFePO4 - Series 2
Detailed Description

Unlock the power of efficient off-grid living with the KickAss Smart 12V 120Ah Lithium Battery and 32A Charger Bundle. This duo is your reliable partner for enjoying adventures without worrying about power shortages. The Slimline Deep Cycle Battery offers you lightweight yet powerful energy storage, designed to thrive in harsh Australian conditions. The Flexicharge Smart Battery Charger ensures your battery is always ready to go, with quick and safe charging for lithium, lead acid, and AGM batteries. This bundle brings together the essential elements for dependable power management, so you can focus on making the most of your adventures.

FIND A KICKASS INSTALLER

Need a hand installing your KickAss gear? Find approved installers in your local area.

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

Got questions about your off-grid power setup? Book a consultation with one of our 12V experts.

VISIT A KICKASS RETAIL STORE

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