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Complete your off-grid adventure setup with the KickAss 12V 300Ah Ultra-X Lithium Battery Kit, featuring DCDC Charger, wiring, and remote display for reliable 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.
Simplify your setup with the new KickAss Control Hub, now integrated with our newest smart 40A DCDC charger with Bluetooth for easy monitoring on your phone. It lets you power up to 15 devices at once while charging your auxiliary battery from alternator or solar directly from the unit, no need to install multiple devices. Perfect for any 4WD canopy or DIY build.
Take the hassle out of building your dual battery system with the updated KickAss Control Hub, now featuring our new Smart 40A DCDC Charger with integrated Bluetooth. This all-in-one panel brings your key 12V essentials together in one tidy, easy-to-mount unit.
The upgraded Smart 40A DCDC Charger simplifies your setup by eliminating the need for separate charging devices. It delivers reliable charging from both your vehicle’s alternator and solar input, ensuring your auxiliary battery stays topped up whether you’re on the move or off-grid. With Bluetooth capability built in, you can now configure and monitor your charger directly from your mobile device. View real-time voltage, current, charge status and system health, and receive instant alerts or warnings if anything needs attention.
This control hub is built to power up to 15 devices at once, giving you a central point to manage lights, fridges, pumps, inverters and more. The clean front panel layout and simple mounting options make installation straightforward, even in tight canopy builds. Whether you're running a full touring setup or building your first 12V system, this panel keeps everything organised, protected and easy to use.
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.
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.
| 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 |
| Cig Socket Outputs | 2 x 10A |
| USB Outputs | 2 x USB-A | 1 x USB-C | 1 x QC3.0 |
| Anderson Input / Outputs | 4 (50A Shared) |
| Anderson Inputs | 3 Pin Alternator | Unregulated Solar |
| Rocker Switches | 5 (Fused) |
| DCDC-MPPT | |
| Alternator Input Voltage Range | 9-32V DC |
| Solar Input Voltage Range | 9-32V DC |
| Maximum Input Current | 56A |
| Maximum Continuous Charging Current | 40A |
| Maximum Output Power | 500W |
| Recommended Output Fuse Size | 50A |
| No Load Current Draw | <10 mA |
| Efficiency | Approx. 93% when full load |
| Ambient Operating Temperature | 20 °C to +80 °C |
| Recommended Battery Capacity | |
| Lead Acid (WET, GEL, AGM, CAL) | 160 – 500Ah |
| LiFePO4 | 50 – 500Ah |
| Charge Profile | |
| Compatible Battery Type | GEL | WET | AGM | CAL | LiFePO4 |
| Absorption Voltage | 14.1V | 14.4V | 14.7V | 15.3V | 14.5V |
| Float Voltage | 13.5V | 13.4V | 13.6V | NA |
| Minimum Auxiliary Battery Voltage | 9V | 0V |
| Alternator Input Conditions | |
| Input Voltage (Ignition OFF) | CUT IN 13.2V | CUT OUT 12.6V | CUT IN 26.4V | CUT OUT 25.2V |
| Input Voltage (Ignition ON) | CUT IN 12.2V | CUT OUT 10.5V | CUT IN 24.4V | CUT OUT 21.0V |
| 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 Heavy Duty Plug and Play DCDC Wiring Kit - 6.5m | |
| KickAss Smart Lithium Battery Remote Display Unit + 5m Extension Cable Bundle | |
| KickAss 12V Control Hub / Panel with Smart 40A DCDC Charger + Integrated Bluetooth | |
| KickAss Smart 12V 300Ah Ultra-X Lithium Compact Deep Cycle Battery LiFePO4 - Series 2 |
Upgrade your off-grid setup with the KickAss 12V 300Ah Ultra-X Lithium Battery Kit. This premium kit includes everything you need to start powering your adventures with confidence. The 300Ah lithium battery provides massive capacity without the bulk, while the Smart 40A DCDC Charger ensures efficient charging on the go. Combine that with our heavy-duty wiring kit and remote display for seamless integration and monitoring. Built to thrive in tough Aussie conditions, this kit is perfect for 4WD enthusiasts, campers, and tradies alike. Simplify your installation and get unparalleled performance with this all-in-one solution.
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