KickAss 12V 120Ah Slimline Lithium Premium Dual Battery Kit with 40A DCDC Charger, Mini Control Box & Shunt

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.

Powerful 40A Dual Battery Charging

With a high 40A output, this charger is perfect for keeping larger lithium and lead acid battery systems topped up and ready for action. It ensures fast, safe charging for demanding off-road or touring applications.

Bluetooth Monitoring & App Control

Connect your charger to your smartphone via Bluetooth to monitor performance in real time. The KickAss App gives you complete visibility over charging status, voltages, current flow, and system alerts – all from your pocket.

Simple Plug & Play Installation

Thanks to Anderson-style connectors, installation is quick and hassle-free with no complex wiring required. It’s designed for DIY setups and easy integration into your existing system.

Dual Input: Alternator & Solar Charging

Charge from your vehicle’s alternator while driving or connect a solar panel when stationary – this charger handles both. Its built-in MPPT solar regulator ensures maximum efficiency when using solar input.

Built for Aussie Conditions

Rated IP66, the KickAss 40A DCDC Charger is waterproof, dustproof, and rugged enough to handle corrugated tracks, extreme heat, and remote adventures. It’s built tough for Australian conditions.

Compatible with 12V & 24V Alternators

Highly versatile, this charger is compatible with both 12V and 24V alternators, making it suitable for a wide range of vehicle types including trucks, commercial vehicles, and 4WDs.

Adjustable Max Input Current – Hybrid Compatible

The maximum input current can be configured via the Bluetooth app, allowing the charger to limit the draw from your vehicle’s alternator, without reducing the maximum charge current when charging from solar. This makes it ideal for some hybrid vehicles or those with low-output alternators, helping prevent overload and ensuring stable, efficient charging without placing strain on your electrical system.

Smart Alternator Ready

Modern vehicles with smart alternators are no problem. The unit supports both smart and fixed-voltage alternators and includes an ignition trigger wire to start or stop charging based on engine status.

Lithium Battery Compatible

Fully lithium-ready, this charger includes an automatic lithium wakeup function that can safely restore LiFePO4 batteries from low voltage protection or sleep mode – no manual intervention needed.

Advanced Multi-Stage Charging

Precision charging algorithms help extend the life of your auxiliary battery. The charger delivers multi-stage charging tailored to the battery type, helping maintain peak performance over the long haul.

Starter Battery Isolation

To protect your starting battery, the charger only delivers current to your auxiliary battery when the engine is running, and automatically disconnects when the vehicle is off – eliminating unwanted drain.

Supports Multiple Battery Chemistries

Whether you’re using lithium, AGM, wet, gel, or calcium batteries, this charger has you covered. It’s a versatile solution designed to support a wide range of battery types.

Perfect for 4WDs, caravans, camper trailers, and off-grid touring setups, the KickAss 40A DCDC Charger with Solar MPPT and Bluetooth delivers intelligent charging for serious adventurers.

This 3-pin Anderson-style connector with built-in ignition wire makes connecting your 12V dual battery system easy. Perfect for wiring DC/DC chargers, battery boxes & auxiliary batteries.  

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.

Power up to 11 Devices Simultaneously

The KickAss 12V Mini Power Box distributes power from your auxiliary battery to power up to 11 different devices at once. Built with 6 x USB ports, 3 x 12V cigarette sockets, and 2 x Anderson input/output ports, you can power phones, tablets, 12V fridges, ovens, vacuum sealers, projectors, and more.

4 x USB Ports Featuring USB-C & QC3 Ports

Get blazing fast charging on all your USB devices with the USB-C and QC3 Port (Quick Charge 3.0). Charge phones, tablets, and more. Charge up to 6 USB devices simultaneously!

2 x Anderson Input/Outputs – Charge from Solar

Power 12V fridges, travel ovens, or even charge your auxiliary battery from regulated solar panels using the quick-connect Anderson connectors.

Built-in 3-Stage LED Light

Never be lost in the dark again. The KickAss Mini Box has a built-in 3-stage LED light, perfect for providing light when you cannot find your phone or torch.

LED Voltmeter Multi-Colour

The LED voltmeter shows your battery condition at a glance. With its multi-coloured display, you can clearly see the voltage of your battery day or night. Never end up with an unexpected flat battery. Please note the on/off switch is for the voltmeter only.

Multiple Mounting Options

Two convenient mounting points allow for easy installation into your canopy, camper, or caravan.

Anti-Slip Rubber Feet

The anti-slip rubber feet prevent your power box from slipping and help protect surfaces from scratches.

Protective Dust Cover & Anderson Cable Protective Cover

Protect the USB ports with the USB dust cover. The Anderson cable protective cover shields the cable end from dust and prevents disconnection.

Warning: A battery must be connected prior to connecting a regulated solar panel. The regulated solar panel must be disconnected before the battery is disconnected. Failure to do so may void your warranty.

Note: This unit is not waterproof and should not be mounted outside.

Note: This unit is not a standalone power source and must be connected to a power supply to power your devices.

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.

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

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.