KickAss Smart 12V 300Ah Ultra-X Lithium Bundle with 3kW PowerBoss, BT Remote Module, Connections Kit & Wiring Kit

Building on the all-in-one design of the 2kW PowerBoss, the KickAss 3kW PowerBoss delivers more power for demanding off-grid setups. It combines a 3000W pure sine wave inverter, 150A AC-DC charger, 50A DC-DC MPPT charger and DC load monitoring in one compact unit, making it ideal for 4WDs, caravans, camper trailers and canopies.

The 3000W pure sine wave inverter provides the capacity to run more demanding AC appliances and equipment away from mains power. When it’s time to recharge, the PowerBoss offers up to 150A charging from AC mains power, 50A from your alternator and 40A from solar. It also supports simultaneous AC and solar charging to help you make the most of available charging sources.

Measuring just 285 x 138 x 430mm, the 3kW PowerBoss is only slightly larger than the 2kW model, despite its increased inverter and charging capacity. Combining your inverter, chargers, monitoring and power management in one unit reduces the number of separate components taking up valuable space in your setup.

Bluetooth connectivity provides access to real-time system information, while compatible remote monitoring options offer flexibility in how you monitor your setup. Integrated DC load monitoring shows where your 12V power is going. Integration with compatible KickAss Smart and Ultra-X lithium batteries and the KickAss Bluetooth Smart Shunt provides accurate battery State of Charge information for greater visibility across your power system.

Designed for straightforward installation, the PowerBoss features plug-and-play connections, integrated AC circuit protection and compatibility with both 12V and 24V alternators. For larger builds that need more power, the KickAss 3kW PowerBoss delivers increased capability while retaining the compact design and simplicity of an all-in-one system.

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.

Connect your alternator and DC-DC charger with the KickAss DC-DC to Alternator Wiring Kit – 4AWG (6.5m). Designed for fixed and variable voltage alternators, this heavy-duty kit is compatible with the KickAss 60A DC-DC Charger, 3kW PowerBoss and 50A DC-DC chargers. The 6.5m cable features a 4AWG tinned copper conductor for high-current charging and excellent corrosion resistance. Flexible silicone insulation makes routing easier, while a PET braided sheath provides added protection.

The kit includes a 100A MIDI fuse, ignition cable and a selection of fuse taps, including MIDI, Micro and Micro2 types, for connecting to your vehicle's ignition signal when required. Spare ring terminals and a replacement 100A fuse are also included. Whether you're installing a new dual battery system or upgrading an existing off-grid setup, this kit brings together the essential components for connecting your vehicle's alternator to your DC-DC charger.

Connect your KickAss 3kW PowerBoss with the KickAss PowerBoss Connection Kit – 95mm². This kit brings together the essential cables, connectors and tools for installation, including heavy-duty 95mm² tinned copper battery cables for excellent corrosion resistance. Flexible silicone insulation makes the cables easier to route through your setup, while a secondary PET braided sheath provides added protection.

A high-current quick-connect isolation connector allows you to disconnect your PowerBoss when needed. Dedicated solar input and DC load connection cables simplify the integration of solar panels and 12V accessories, while the included chassis ground cable and hand tools help you make secure connections. Whether you're building a new off-grid power system or upgrading an existing setup, this kit brings the essential connection components together in one package.

The Bluetooth Module for PowerBoss enables seamless communication with your PowerBoss device from your mobile device. Designed for plug-and-play installation, it connects easily via the supplied RJ45 connector - no additional setup needed. Featuring an integrated hardware switch, the module allows you to conveniently power the system on and off.