KickAss 12V 120Ah Lithium Essentials Dual Battery Kit with DCDC Charger, Wiring Kit & Battery Tray

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.  

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