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Ultimate dual battery kit with 600Ah capacity, 3000W inverter, and smart DCDC charger for complete off-grid power.
Everything that is included in this KickAss kit!
The first release in the new Series 2 Ultra-X battery range, this 300Ah lithium power house packs 300Ah of usable capacity into a compact design that can be installed anywhere from under beds in caravans to the back of ute tubs. Connect up to four in parallel or series & monitor the entire battery bank remotely via Bluetooth – no external shunt required. Supports AS/NZS:3001 compliance.
The KickAss Smart 12V 300Ah Ultra-X Lithium Compact Deep Cycle Battery LiFePO4 is the first battery in the second series of our premium Ultra-X range, building on everything customers already love. This second series introduces a new look along with key upgrades including an IP65-rated enclosure, integrated Low Voltage Recovery (LVR) button, and supports AS/NZS 3001.2 compliant installations. It's the next evolution of KickAss Ultra-X Lithium Batteries, delivering the same premium performance with even more capability.
With 300Ah of usable capacity and a 300A continuous discharge, it's built to power demanding off-grid setups, making it the ideal battery to pair with a 3000W inverter for running fridges, induction cooktops, coffee machines, power tools, lighting and other 12V and 240V appliances at the same time. This high-performance 12V lithium battery gives you more power without taking up valuable space.
Its compact form factor opens up installation options that simply aren't possible with many large-capacity batteries. Mount it neatly beneath caravan beds or bench seats, inside ute tubs under roller covers, within canopies or in camper trailers. A built-in vent means that the battery supports AS/NZS 3001 compliant installations, while the rugged metal housing, IP65 rating and intelligent Battery Management System ensure reliable performance in harsh Australian conditions.
Bluetooth monitoring lets you check battery status, capacity, voltage, temperature and current directly from your smartphone, while the optional Remote Display provides the same information for those who prefer a dedicated screen. If you accidentally run your battery too flat, then the integrated Low Voltage Recovery (LVR) button makes it easy to reawaken the BMS after an over-discharge, helping you get back on the road with the touch of a button.
As your power needs grow, your battery system can grow with them. Connect up to four Ultra-X 300Ah lithium batteries in series or parallel to create a powerful battery bank, then monitor the entire system through the KickAss app or Remote Display without needing an external shunt. The KickAss Ultra-X 300Ah LiFePO4 Battery delivers a cleaner, simpler and smarter way to build a scalable off-grid power system.
Perfect for larger setups, the KickAss 12V to 240V Pure Sine Wave 3000W Inverter is a great choice for complete caravan setups, large work trailers, and motorhomes. Perfect for powering camp heaters and A/C units as well as everyday appliances.
Please note: The inverter does not include battery cables. Suitable cables must be purchased separately to ensure safe and correct installation.
KickAss 12V to 240V Pure Sine Wave 3000W Inverter Feature Overview
3000W Continuous Output
Plenty of power to run all your AC essentials while on the move—induction cooktops, coffee machines, battery chargers for your power tools, and more!
Pure Sine Waveform
Delivers a clean and reliable sine wave output that replicates the AC signal you get from a home power point. Unlike modified sine wave inverters that don't produce a true sine wave, the KickAss Pure Sine Wave Inverter is ideal for running sensitive electronic devices like laptops, Starlink, and CPAP machines.
AC Automatic Transfer Switch
Simplify your off-grid installation with the Automatic Transfer Switch. Power your AC devices from your batteries, then once you’re back on-grid, simply plug in the AC input cable to switch over to mains power. If the mains supply cuts out, the inverter will seamlessly switch back to battery power.
Multiple Protective Features
Multi-level safety protection utilises both software and hardware features to protect you, your inverter, and your devices. The inverter continuously monitors operation and will trigger protection mode if an unsafe condition is detected. Integrated Residual Current Devices (RCD) and Circuit Breakers (CB) provide additional hardware protection, making the inverter suitable for commercial environments.
Optional Remote Control Display (Not Included in Base Version)
The optional remote display allows you to monitor and manage power usage wherever needed. The low-profile screen is discreet and can be flush-mounted into any panel—for example, near your camp kitchen. The remote also features an integrated on/off switch to conserve battery power.
Note: Only compatible with the blue KickAss remote inverter screen.
Surge Power – Reaches 6000W in 2 Seconds
With a peak surge rating of 6000W for up to 2 seconds, this inverter is ideal for supporting devices with a high current draw, like power tool battery chargers, microwaves, and induction cooktops.
High 94% Conversion Efficiency
Inefficient inverters waste energy when converting DC to AC. The KickAss 3000W Pure Sine Wave Inverter achieves 94% efficiency, maximising the usable capacity of your battery bank.
Integrated USB Charging Ports
Includes an integrated 5V 2.1A USB port for convenient charging of your small devices directly from the inverter.
Smart Cooling System
The smart fans automatically adjust their speed to keep the inverter cool, increasing efficiency and maintaining optimal power output.
High Quality Circuitry Components
Built using premium quality components and the latest technology, this inverter delivers reliable performance. Even under heavy loads and peak surges up to 4000W, it remains protected against spikes and surges.
Multiple Mounting Options
Four convenient mounting points allow easy installation into your caravan, camper, or canopy 12V power setup.
Charge your dual battery system fast with this 40A DCDC Charger. Ideal for lithium & lead acid batteries, it suits medium to large setups. Solar MPPT, Bluetooth, lithium wakeup, and multi-stage charging – all in a tough, IP66-rated, plug & play unit built for Aussie conditions. Note this charger requires the KickAss Heavy Duty Wiring Kit or 6AWG cable from the starter battery.
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.
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.
Designed to handle higher power demands, this premium wiring kit provides a strong and reliable connection for your 3000W inverter. With heavy-duty cables, durable connectors and essential safety components, it delivers efficient power transfer and peace of mind in larger off-grid or mobile setups.
The KickAss Remote Smart Lithium Battery Display Unit is compatible with the KickAss Smart and Ultra-X series batteries. Simple plug-and-play via the RJ45 connector, it allows you to monitor State of Charge (SOC), voltage, real-time current, and temperature of either a single battery or multiple batteries connected in parallel or series. Includes 5m extension cable. No shunt required!
The KickAss Remote Smart Lithium Battery Display Unit is compatible with the KickAss Smart and Ultra-X series batteries. Simple plug-and-play via the RJ45 connector, it allows you to monitor State of Charge (SOC), voltage, real-time current, and temperature of either a single battery or multiple batteries connected in parallel or series. Includes 5m extension cable.
Take full control of your battery system with the KickAss Battery Display Monitor – your window into real-time performance, protection, and peace of mind.
Monitor Your Battery Like a Pro
Never guess your battery’s health again. With a full-colour screen, you can instantly view:
Built-In Battery Management System (BMS)
The integrated KickAss BMS keeps your battery safe — actively protecting against:
Stay alerted with smart error messages and stay in control from your display or compatible mobile device.
Easy Flush-Mount Design
Install it where you need it most. Whether it's in your canopy, van, or camper setup, the flush-mount design with included screws and universal hole spacing makes installation fast and secure.
Compact Dimensions
The KickAss Battery Display Monitor isn’t just for looks – it’s your off-grid command centre. Whether you're heading bush or running gear off your canopy, this screen keeps your system protected and your trips worry-free.
Install your inverter close to your batteries, and still be able to monitor and control your power usage easily from a distance thanks to this handy remote display. Comes with a 3 metre cable.
KickAss Pure Sine Wave Inverter Remote Display Panel Feature Overview
Real-Time Monitoring
Unexpected power fluctuations can damage your equipment and waste valuable energy. With real-time monitoring, you can track your energy generation and power usage, spotting any problems early. This keeps your setup running smoothly and efficiently at all times.
Remote Control
Monitor and manage your power consumption from a distance—for example, from the front seat while your inverter is installed in the back of your truck. The included 3-metre cable allows you to access and control your inverter system easily.
Fault Diagnostics
When a system malfunction occurs, diagnosing the problem can be challenging and time-consuming. The KickAss Inverter Remote Display automatically identifies and reports inverter faults, providing detailed diagnostics to simplify troubleshooting.
Intuitive User Interface
The display screen is clear and easy to navigate. View energy metrics, adjust settings, and set alerts with confidence—no guesswork, just clear and precise information.
Compatible with Most KickAss Inverters
The remote display unit is compatible with KickAss 2000W and 3000W inverters (not compatible with 700W or 1200W models). Seamlessly integrate it into your current setup or upgrade your system with ease.
Please note: This remote display is not compatible with older red KickAss 700W, 1200W, 2000W, or 3000W inverters.
These 400mm linking cables allow you to connect batteries in series or parallel to build a battery bank, increasing your power capacity. 12V, rated to 100amps. Appropriate for 4WDs & light commercial vehicles.
400mm Length Pair (Black & Red) Battery Joiner Pack
Combine batteries in parallel to create a battery bank and boost your power storage capacity. These cables can also be used in series to achieve 24V from two 12V batteries.
Note: Always ensure your batteries are connected correctly for your intended application.
This heavy duty cable features weatherproof casing to protect the fuse from dust and damage. The durable 8 B&S cable is encased in a smooth PVC outer layer for protection and ease of use.
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:
See links below for replacement fuses:
Spare 50A MAXI Fuse - Red
| Length | 830mm |
| Cable Type | 8B&S (8.3mm²) single core |
| MAXI Fuse Rating | 80A |
| Ring Terminals | 8mm Ring Terminals |
| Main Cable Length | 6.5M - 3 Core |
| Ignition Cable Extension | 3M - 14AWG Single Core |
| Cable Size - 3 Core | 2x 6AWG (13.5mm²), 1x 14AWG (1.8mm²) |
| Insulation Material | Inner - Silicon / Outer - PVC |
| Rated Temperature | Max. 105°C |
| Ring Terminals | M8 - Battery / M6 - Fuse |
| Fuse | 80A MIDI Fuse with Holder |
| Connections | 3 Pin Anderson Style / Bullet |
| Length | 400mm |
| Voltage | 12V |
| Current Rating | 100 Amps |
| Cable Size | 2 AWG |
| Lug Hole Size | 8mm |
| Output Waveform | Pure Sine Wave <5% |
| Input Voltage | 12V DC (10~16V) |
| Output Voltage | 240V AC ±5% |
| Output Rated Power | 3000W |
| Surge Power 10 Sec | 3000W~3600W |
| Surge Power 2 Sec | 6000W |
| Frequency | 50Hz ±1Hz |
| Max Efficiency | 94% |
| High Voltage Protection | 16V DC ±0.5V DC |
| Low Voltage Protection | 10V DC ±0.5V DC |
| Built-in Auto Transfer Switch | Yes |
| Built-in Residual Current Device | Yes |
| Smart Cooling Fan | Yes |
| Environment Operating Temperature | -15°C ~ +40°C |
| Storage Temperature | -25°C ~ +75°C |
| Relative Humidity | 20% ~ 90% RH Non-Condensing |
| Weight | 7.8KG |
| Dimensions (L×W×H) without base or terminals | 386 x 220 x 150MM |
| Dimensions (L×W×H) with base and terminals | 470 x 220 x 150MM |
| Charger Output Voltage Range | 3–16V DC |
| Alternator Input Voltage Range | 9–32V DC |
| Solar Input Voltage Range | 9–32V DC |
| Maximum Input Current | 56A |
| Maximum Continuous Charging Current | 40A |
| Recommended Output Fuse Size | 50A |
| No Load Current Draw | 10 mA |
| Battery Chemistry | LiFePO4 | AGM | GEL | CAL | WET |
| Efficiency | Solar - 99% Max | Alternator - 92% Max |
| Operating Temperature | -20 °C to +80 °C |
| Ingress Protection | IP66 |
| Certifications | RCM Mark | FCC |
| Recommended Battery Capacity | |
| Lead Acid (WET, GEL, AGM, CAL) | 160 – 500Ah |
| LiFePO4 | 50 – 500Ah |
| Charge Profile | |
| Absorption Voltage | GEL - 14.1V | WET - 14.4V | AGM - 14.7V | CAL - 15.3V | LiFePO4 - 14.5V |
| Float Voltage | GEL - 13.5V | WET - 13.4V | AGM - 13.4V | CAL - 13.6V | LiFePO4 - NA |
| Minimum Auxiliary Battery Voltage | GEL/WET/AGM/CAL - 9V | LiFePO4 - 0V |
| Alternator Charge Conditions | |
| 12V Alternator Input (Ignition OFF) | CUT-IN 13.2V | CUT-OUT 12.6V |
| 12V Alternator Input (Ignition ON) | CUT-IN 12.2V | CUT-OUT 10.5V |
| 24V Alternator Input (Ignition OFF) | CUT-IN 26.4V | CUT-OUT 25.2V |
| 24V Alternator Input (Ignition ON) | CUT-IN 24.4V | CUT-OUT 21V |
| Warranty | 2 Year |
| Product Weight | 1300g |
| Length | 1050mm |
| Cable Diameter | 15mm |
| Voltage | 12.8V |
| Capacity | 300Ah |
| Cell Type | Prismatic |
| Max Continuous Discharge | 300A |
| Max Continuous Charge | 250A |
| Peak Discharge | 660A @ 30 Seconds |
| Ingress Protection | IP65 |
| Max Charge Temp | 60°C |
| Min Charge Temp | 0°C |
| Max Discharge Temp | 65°C |
| Min Discharge Temp | -20°C |
| Cycle Life | 4000+ |
| Bluetooth | Yes |
| Remote Display | Optional |
| Parallel / Series Remote Monitoring | Yes, up to 4 |
| Dimensions (Battery with terminals) | 242 x 180 x 460 |
| Dimensions (With Mounting Brackets) | 242 x 180 x 500 |
| Weight | 30kg |
| Certifications | IEC 62619, UN38.3, FCC, EMC |
| KickAss Automotive Inline Maxi Fuse Holder with Anderson Plug | |
| KickAss Heavy Duty Plug and Play DCDC Wiring Kit - 6.5m | |
| KickAss 12V to 240V Pure Sine Wave 3000W Inverter | |
| KickAss Pure Sine Wave Inverter Remote Display Panel | |
| KickAss Smart Lithium Battery Remote Display Unit + 5m Extension Cable Bundle | |
| KickAss Smart 12V/24V 40A DCDC Charger With Solar MPPT + Integrated Bluetooth + Pre-Wired Anderson | |
| KickAss Smart 12V 300Ah Ultra-X Lithium Compact Deep Cycle Battery LiFePO4 - Series 2 |
Take your off-grid adventures to a whole new level with the KickAss Twin 12V 300Ah Ultra-X Lithium Complete Dual Battery Kit. This powerhouse kit is designed for serious adventurers who need reliable power on the go. Featuring two 300Ah Ultra-X Lithium batteries for a massive 600Ah of total capacity, a 3000W Pure Sine Wave Inverter, and a Smart DCDC Charger with Solar MPPT and Bluetooth connectivity. The kit also includes comprehensive wiring and remote displays, ensuring a seamless setup for powering your entire camping or 4WD setup with ease.
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