KickAss 12V/24V 40A DCDC Charger with Solar MPPT & Pre-Wired Anderson Plug

KickAss 12V/24V 40A DCDC Charger with Solar MPPT & Pre-Wired Anderson Plug

Support Page DCDC Charger Manual

KickAss 12V/24V 40A DCDC Charger With Solar MPPT + Pre-Wired Anderson Feature Overview

Charge your secondary battery from the vehicle’s alternator
Charge your secondary or auxiliary battery from the vehicle's alternator. Suitable for 12V or 24V vehicle setups and compatible with standard or smart alternators.

Lithium BMS Sleep Mode & Recovery Feature
In Lithium mode, when the voltage drops below the safety parameters, the DCDC charger will begin recovery mode. The DCDC will trickle-charge the battery until it reaches the cut-in voltage and begins normal charging.

Plug and Play Pre-wired Anderson Connection
Provides a strong and secure connection you can rely on every time. Perfect for DIY installation.

True 3-stage Charging
Advanced algorithms enhance the overall charging performance.

Automatic Battery Isolation
Automatically isolates your starter battery when no charge is detected, preventing parasitic drain by your auxiliary battery. You’ll never drain your starter battery.

Built-in 40A MPPT With Separate Solar Input
Extracts the maximum available power from your solar panels and converts it to the optimal voltage for efficient battery charging.

IP66 Dust & Water Protected
Protected against dust and strong jets of water.

Backwards Compatibility
Compatible with common two-pin Anderson connectors, allowing for a standard positive and negative wire connection even when the ignition wire is not needed.

The KickAss 40A DCDC Charger is compatible with GEL, AGM, WET, CALCIUM, and Lithium LiFePO4 batteries, supporting auxiliary battery capacities from 200 to 500Ah for lead acid types and 120 to 500Ah for LiFePO4. This versatility ensures it can handle a wide range of battery setups for off-grid and adventure use.
This charger’s multi-stage charging algorithm optimises charging for each battery type, ensuring your auxiliary battery is fully charged and maintained safely, even in modern vehicles that don’t supply ideal charging voltages.

The charger features built-in voltage sensing that connects the start battery to the auxiliary battery only when the vehicle is running, then disconnects them when the vehicle is off. This prevents the auxiliary battery from draining the start battery, preserving your vehicle’s ability to start every time.
This intelligent isolator control includes a 30-second delay before cutting in or out, ensuring smooth transitions and protecting both batteries from unnecessary discharge or overload.

Yes, the KickAss 40A DCDC Charger includes a built-in MPPT solar controller that efficiently charges your auxiliary battery from solar panels when the vehicle’s alternator is not running. It supports solar input voltages from 10V to 32V DC, maximising solar energy harvest.
The MPPT controller ensures you get the maximum power output from your solar panels, making it ideal for extended off-grid adventures where solar charging is essential to maintain battery health.

To select the battery type, press and hold the Battery Mode button for 2 to 4 seconds until the battery type LED advances to the desired setting. The charger supports GEL, AGM, WET, CALCIUM, and Lithium LiFePO4 batteries, allowing you to tailor charging parameters precisely.
This simple setup ensures your battery receives the correct absorption and float voltages, optimising charge efficiency and battery lifespan without complicated programming.

The charger includes short circuit protection, reverse polarity protection, over voltage protection, over temperature protection, and temperature compensation via an included sensor. These features safeguard both your batteries and the charger during operation.
For example, if batteries are connected incorrectly, the charger won’t operate and will display a fault. Temperature compensation adjusts charging current based on battery temperature, preventing overcharging and extending battery life.

The charger should be mounted as close as possible to the auxiliary battery, away from heat sources like turbos or exhaust pipes, and in a well-ventilated area. Use appropriate cable sizes and fit 50-75 amp fuses on both input and output sides for optimal safety and performance.
Following these installation guidelines ensures maximum charging efficiency, protects your wiring, and maintains safe operation even under heavy loads or harsh conditions.

Yes, the KickAss 40A DCDC Charger operates on input voltages from 9V to 32V DC, supporting both 12V and 24V vehicle electrical systems. It automatically manages cut-in and cut-out voltages for each system to protect your batteries and ensure efficient charging.
This flexibility makes it suitable for a wide range of vehicles and setups, from standard 12V caravans to larger 24V trucks or boats, providing reliable charging wherever you go.

The charger operates at approximately 93% efficiency at full load, delivering up to 40 amps continuous charging current and a maximum output power of 500 watts. This high efficiency means less energy is wasted, maximising battery charge and reducing heat generation.
With its IP66 rating, it’s also well protected against dust and water ingress, making it durable and reliable for rugged outdoor and off-grid environments.