KickAss 12V 120Ah Lithium Dual Battery Essentials Kit with Charger, Smart Shunt & Wiring

When space is tight but power demands are high, the KickAss 12V 120Ah Lithium Slimline Deep Cycle Battery LiFePO4 is built to deliver. Designed to fit into narrow compartments and tight installations where a standard deep cycle battery simply won’t fit, this battery is ideal for caravans, camper trailers, 4WDs, boats, and off-grid solar setups. It’s also an ideal drop-in replacement if you have an older slimline battery that’s ready for an upgrade.

At its core is a set of high-quality, A-grade prismatic LiFePO4 cells, delivering 120Ah of usable capacity and 120A of continuous charge and discharge current. That means reliable, consistent power for fridges, lighting, inverters, and other 12V accessories, whether you're camping for a weekend or living off-grid for weeks at a time.

Rated for 4000 cycles at 80% depth of discharge, this lithium deep cycle battery is built to outlast traditional AGM and lead-acid batteries many times over, offering better long-term value for caravan, camping, marine, and solar battery setups.

Safety and reliability are built in from the ground up. An intelligent Battery Management System (BMS) continuously monitors the battery, helping protect against overheating, overcharging, overdischarging, short circuits, and voltage irregularities. Combined with an IP65-rated housing for dust and water protection, this battery is built to handle harsh Australian conditions, from dusty outback tracks to salty marine environments.

Low self-discharge means this battery holds its charge well during storage, so it's ready to go when you are, even after weeks sitting idle. A wide operating temperature range – charging from -10°C to 60°C and discharging from -20°C to 65°C – ensures dependable performance across the seasons, whether you're chasing summer swells or exploring in the depths of winter.

Compact, powerful, and built for Australian conditions, the KickAss 12V 120Ah Lithium Slimline Deep Cycle Battery is the ideal upgrade for anyone after a reliable, long-lasting lithium battery that fits where others can't.

The KickAss Smart Monitor Lite Shunt + Tank Sensor is a powerful, easy-to-use solution for monitoring your off-grid power and water systems. Designed for touring rigs, caravans and 4WD setups, it gives you clear, reliable insight into how your battery bank is performing, how long you can keep running your gear, and when it’s time to recharge or top up the tank.

At the heart of the system is a high-capacity 600A shunt that accurately measures charge and discharge current, battery voltage and State of Charge. This allows you to understand exactly what’s happening inside your battery bank, helping you manage power more efficiently and avoid unexpected shutdowns when running fridges, lighting, inverters and other essential off-grid equipment. As loads and charging sources change, the system continuously provides real-time calculations and updates how long your battery has left to run or how long it will take to recharge. This takes the guesswork out of power management and makes it easier to plan your usage while travelling off-grid.

The Smart Monitor Lite can also connect to your tank sensor or sender, allowing you to monitor both your battery data and water level from a single unit. It’s compatible with resistive and voltage-type tank senders and can be calibrated to suit virtually any tank size or shape.

Monitoring and setup are simple thanks to Bluetooth connectivity and the dedicated mobile app. View real-time voltage, current, power and State of Charge from your smartphone, configure battery and tank settings, and review historical performance data whenever you need it. For quick checks without reaching for your phone, the colour LCD remote display provides clear, at-a-glance system information right where you want it.

Installation and configuration are straightforward, even for more complex setups. The intuitive app interface guides you through setup with clear menus and prompts, making it easy to tailor the system to your specific battery chemistry and capacity. The shunt supports AGM, lithium and other common battery types, from small single-battery systems through to large dual-battery lithium banks.

Integrated data logging records voltage, current and temperature for up to 35 days, allowing you to review power usage trends over the course of a trip. With a wide input voltage range and flexible power options, the unit can be powered directly from the battery or an external supply and used with battery banks of any voltage. For added control and protection, the external relay output allows you to automate system behaviour based on voltage, current, power or temperature.

KickAss Premium Plug & Play DC-DC Wiring Kit

Introducing the ultimate dual battery system wiring kit, now featuring a three-pin 50 Amp Anderson-style connector with ignition wire. The team at KickAss has carefully developed this premium plug-and-play wiring kit for ultra-easy DIY installations. It’s packed with high-quality components to ensure your setup is smooth and professional.

The kit is fully plug-and-play for any system using Anderson connectors for charging input and includes everything needed for a professional wiring installation. It now comes with our famous Maxifuse cable pre-installed into 6 metres of heavy-duty 8 B&S cable, providing 50A of circuit protection. The new three-pin Anderson plug allows for easier installation by integrating an ignition wire directly into the connector—eliminating the need to run multiple cables through your vehicle.

The cable is pre-crimped with Anderson connector terminals, making it simple to feed through holes and grommets. Once installed, you just clip on the three-pin Anderson connector. The kit also includes cable ties for securing cables, a spare 80A Maxifuse, a 3-metre ignition tail wire, and spare Anderson terminals.

Backwards Compatibility

The three-pin Anderson connector is backwards compatible, allowing a two-pin Anderson connection to work even if the ignition wire is not connected.

The KickAss Premium DC-DC wiring kit is specifically designed for our DC-DC chargers and is not compatible with VSRs.

For Other Installations, Please Use Our Dual Battery Wiring Kit When:

• Wiring to a battery system in the cargo area of the vehicle
• Installing VSRs – see our KAVSRAND kit fully compatible with this setup
• Connecting KickAss battery boxes and power packs
• Connecting auxiliary batteries – using KickAss Maxifuse Cable and optional VSR

This Kit Includes:

• 6 x 50 Amp Anderson terminals
• 1 x 50 Amp 3-Pin Anderson connector
• 1 x 80Amp spare Maxifuse
• 10 x Black cable ties (300mm)
• 1 x 3m tail ignition cable

120AH KickAss Slimline Battery Tray

Built specifically for our range of Slimline batteries, our brand-new slimline battery trays are the solution to securing your KickAss slimline battery. These KickAss battery trays are perfect for installation behind the rear seats of a modern 4WD dual cab, or in its canopy.

Behind Seat Battery Tray

Store your battery out of sight and maximise storage space for your other belongings. 

Heavy Duty Slimline Battery Mount

Constructed with a lightweight & strong aluminium frame to protect and secure your battery. A heavy duty slim battery tray designed for the toughest Australian Terrain.

Hold-Down Straps

Our slimline battery holder features 2 heavy duty straps that hold your battery in place. These can easily be detached, allowing easy access your battery.

Factory Mounting Holes

Simply mount your slim battery tray via the factory mounting holes. Comes with all bolts and screws included, so you don’t have to shop around for extras.

Please Note - Please check the product specifications before purchase. KickAss is not responsible or liable for any modification performed on your vehicle.

The KickAss 600A Smart Shunt Power Connections Kit is the perfect companion to your KickAss 600A Smart Shunt with Battery & Tank Monitor, designed to make installation quick, clean and easy. This purpose-built kit includes the main heavy-duty negative connection between your battery and shunt, along with the smaller positive and negative power cables required to run the shunt itself. With everything sized correctly and ready to go, it eliminates guesswork and ensures your monitoring system is powered safely and accurately from day one.

Built for serious off-grid and touring setups, the kit features a rugged 95mm² negative hookup cable designed to handle high-current loads with minimal voltage drop. Whether you're running a lithium battery bank, dual battery system or high-draw accessories, these cables deliver dependable performance in harsh environments. By using the correct cabling for your shunt installation, you'll get more accurate readings, improved reliability and a cleaner, more professional finish to your power system.

KickAss MAXI Fuse Anderson Cable

The KickAss MAXI Fuse Anderson Cable is the perfect solution for connecting a battery to virtually any device. It offers superior circuit protection through an inline 80A MAXI Fuse, safeguarding against short circuits and potential system damage.

With a purpose-designed length, this cable easily reaches vehicle starting batteries and integrates seamlessly with dual battery setups. The built-in weatherproof MAXI Fuse holder simplifies installation, eliminating the need for mounting traditional fuse holders or circuit breakers.

One end of the cable features a 50 Amp Anderson style connector for effortless connection to battery boxes, solar panels, or other compatible devices. The other end includes high-quality 8mm ring terminals for secure battery attachment. A spare 80A MAXI Fuse is included for added convenience.

Features:

• In-line weatherproof MAXI Fuse holder with 80A MAXI Fuse
• Length: 750mm
• Cable type: Twin 8B&S (7.71mm²) Red/Black Sheathed
• 1 x 80A MAXI Fuse pre-installed in holder
• 1 x 80A MAXI Fuse spare
• 8mm ring terminals

See links below for replacement fuses:

Spare 50A MAXI Fuse - Red