KickAss 205Ah Lithium Battery Box + 50A Smart AC Charger Bundle with Tray

The KickAss Flexicharge 12V 50A ACDC Smart Battery Charger is built for serious off-grid, touring, and workshop setups. Engineered for fast charging high-capacity batteries like the KickAss Ultra-X range, it delivers powerful performance, intelligent control, and flexibility across multiple battery types – keeping your system running reliably on the road, on-site, or on shore power.

Fast, Controlled 50A Charging

Delivering up to 50 amps of output, this charger rapidly restores power to large lithium batteries and high-capacity systems. Capable of recharging a 200Ah lithium battery in as little as four hours, it’s engineered for serious power users who need their batteries charged efficiently and safely.

Fully Adjustable Output

Choose from 50A, 32A, 16A, or 4A charging modes to suit your setup. Whether you’re maintaining a small vehicle’s starter battery or powering a large lithium bank, this charger gives you precise control to ensure optimal performance and battery longevity.

Smart Bluetooth Control

Monitor and manage your charging system directly from your smartphone. With built-in Bluetooth connectivity, you can set battery type, adjust charge parameters, and view live voltage, current, and system status – all without touching the charger.

Multi-Chemistry Compatibility

Designed for total flexibility, this charger supports Lead Acid, AGM, Gel, Calcium, and Lithium batteries. It automatically applies the correct charging profile for each chemistry, ensuring the right balance of speed, safety, and battery protection.

Integrated Vehicle Diagnostics

Doubles as a diagnostic tool, checking alternator output, starter battery health, and cranking performance. Instantly identify weak points in your vehicle’s electrical system before they become roadside problems.

Dynamic Battery Maintenance

Once your battery reaches full charge, the charger switches to intelligent maintenance mode, monitoring voltage and applying a top-up only when needed. This prevents overcharging and keeps your system fully charged and ready.

Advanced Multi-Stage Charging

The smart 3-stage algorithm – bulk, absorption, and float – ensures fast, safe, and complete charging. Throughout the process, voltage and current are constantly monitored to deliver precision control, maximise efficiency, and extend battery life.

Intelligent Cooling & Quiet Mode

Temperature-controlled fans automatically adjust speed for efficient cooling with minimal noise. Activate Quiet Mode to further reduce fan operation and output current – ideal for overnight use or low-noise environments.

Simple Plug & Play Setup

With Anderson-style DC output and IEC AC input, installation is fast and flexible. Use the supplied Anderson-to-ring terminal cable for fixed installs or optional alligator clips for portable use, giving you connection options for any charging scenario.

Lithium Recovery & Starter Battery Replacement Mode

Includes a recovery function to safely revive lithium batteries that have entered low-voltage protection mode. It also operates as a regulated 12V DC power supply, for maintaining system voltage during battery replacement to avoid ECU resets or data loss.

EV and Hybrid Inverter Enabled Dual Battery Charger

Utilise the inverter in your EV, Hybrid or mild hybrid vehicle to charge our dual battery system through the 50A Smart AC Charger. Simply connect the charger input to the inverter output in the vehicle and you’ve got a plug-and-play dual battery system.

Clear LCD Display & Status Indicators

Stay informed with the integrated LCD screen, showing live voltage, current, and charge stage data. A status LED provides at-a-glance confirmation of charger operation and progress.

Built-In Protection & AGM Reconditioning

The Charge Guard system includes reverse polarity, short circuit, over-voltage, over-temperature, and over-current protection to safeguard your gear. Plus, an AGM Recondition Mode helps restore ageing AGM batteries by dissolving sulphate buildup and recovering lost capacity.

The KickAss 205Ah Lithium Battery Box Power Station with 40A DCDC Charger is the largest, lightest battery box available on the market. Purpose-built for 4WDs, caravans, RVs and touring setups, it combines high-capacity lithium storage, dual-source charging, fast USB power and simple monitoring into one rugged, ready-to-install unit.

All-in-One Power System

Instead of juggling separate chargers, panels, displays and distribution gear, this all-in-one Battery Box Power Station integrates battery storage, alternator charging, solar MPPT and output distribution into a single housing. Two supporting Bluetooth apps give you real-time visibility of both your DCDC charger and battery performance, helping you streamline your build and reduce clutter inside your vehicle or canopy.

Fast, Efficient Dual-Source Charging

A built-in 40A DCDC charger with MPPT ensures your battery is always maintained at peak health, whether you’re on the move or parked up at camp. The alternator input uses a triple-Anderson connection for secure, high-current delivery, while a dedicated Anderson solar input allows you to plug in unregulated solar panels without extra regulators or adapters. It’s a dependable charging system designed to maximise every amp.

Integrated LCD Battery Monitor

The onboard LCD display gives you instant access to the key information you need on the road. Voltage, charging and load currents, state of charge, estimated run time, and active charging source indicators are all displayed clearly so you can check system status without reaching for your phone.

Bluetooth Smart Control

With integrated Bluetooth connectivity, you can monitor and configure charging behaviour directly from your mobile device. Check battery health and performance, review charging status, receive system alerts and fine-tune your DCDC settings through the KickAss app. It’s a simple way to stay on top of your system.

Premium 205Ah LiFePO4 Battery Power

Inside the unit are A-grade 205Ah prismatic LiFePO4 cells selected for long-term reliability and deep-cycle durability. 4000 cycles at 80% depth of discharge, consistent power delivery and a lighter overall system weight make it ideal for long touring, multi-day camp setups and stable energy storage.

High-Draw Appliance Ready

With a 200A maximum discharge capability, this Battery Box Power Station is built to handle serious loads. Run fridges, compressors, air fryers, coffee machines, power tools or high-draw inverters with confidence. It delivers smooth, reliable output even under demanding conditions.

Compatible with 12V and 24V Alternators

The charger is compatible with both 12V and 24V alternators, making it suitable for a wide range of utes, wagons, trucks and touring setups. Whether you’re upgrading an existing build or moving gear between vehicles, charging remains simple and consistent.

Hybrid-Friendly Charging

If your vehicle has a low-output alternator or hybrid system, you can dial back the input current to suit its limits. This prevents overloading sensitive vehicles while still delivering dependable charging performance.

Fast USB Power for Devices

The unit includes dual USB-A QC3.0 and dual USB-C 45W PD ports, giving you high-speed charging for phones, tablets, drones, cameras, laptops and other USB-C gear. It’s ideal for both work and recreation when you’re away from mains power.

Six Pre-Wired Anderson Ports

With six 50A Anderson input/output ports, the system is ready for immediate use with solar panels, alternator inputs, fridges, lights, compressors or other accessories. No rewiring or complex setup required.

Simple Installation and Flexible Mounting

Integrated tie-down slots and optional battery trays make it easy to secure the Battery Box Power Station wherever it suits your setup. The entire system is designed for genuine plug-and-play functionality, minimising install time and maximising usability.

Built for Harsh Australian Conditions

A durable outer shell, reinforced carry handles and rugged internal components ensure the Battery Box Power Station is ready for corrugations, dust, vibration and the demands of real off-road travel.

KickAss Battery Box Tray

Materials
Tray: Hard, durable anti-flex plastic
Buckles: Metal
Straps: Thick anti-tear nylon

Dimensions
External: 360 x 225 mm
Internal: 355 x 210 mm

Extend the reach of your 12V devices with ease using the KickAss 8B&S 1 Metre Extension Lead. Featuring heavy-duty 8B&S twin core cable and Anderson style connectors, this extension ensures minimal voltage drop for a reliable and secure connection. Built with a smooth PVC outer for added durability and resistance to grease, oil, and acids, it's the perfect accessory for uncompromising performance.