KickAss 12V/24V 40A DCDC Charger with Solar MPPT & Pre-Wired Anderson Plug
Save more when you buy this as part of a KickAss kit.
View bundle deals →Charge your secondary battery from your alternator. Connect your DCDC charger easily with the 3-pin Anderson connector. Dustproof & waterproof, lithium compatible. Ideal for larger batteries.
Pickup currently unavailable at Acacia Ridge Store
1 Year Warranty
This product is covered by a 1 Year Limited Warranty.
Description
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.
Specifications
| Charger Model | KADCDC40A-AND |
| Input Voltage Range | 5-32V DC |
| Alternator Input Voltage Range | 9-32V DC |
| Solar Input Voltage Range | 10-32V DC |
| Maximum Input Current | 47A |
| Maximum Continuous Charging Current | 40A |
| Maximum Output Power | 500W |
| Fuse Size | 60A |
| No Load Current Draw | <15 mA |
| Efficiency | Approx. 93% when full load |
| Ambient Operating Temperature | -20°C to +80°C |
| Dimensions | 192 x 120 x 44 mm |
| Weight | 950g |
| IP Rating | IP66 |
| Certifications | PROP65, CE, FCC |
| Lead Acid Battery Capacity (WET, GEL, AGM, CAL) | 200–500Ah |
| LiFePO4 Battery Capacity | 120–500Ah |
| 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 |
| Minimum Auxiliary Battery Voltage | 0V |
| Cut In / Cut Out Voltage (Ignition override OFF, 12V) | CUT IN: 13.2V, CUT OUT: 12.6V |
| Cut In / Cut Out Voltage (Ignition override OFF, 24V) | CUT IN: 26.4V, CUT OUT: 25.2V |
| Cut In / Cut Out Voltage (Ignition override ON, 12V) | CUT IN: 12.2V, CUT OUT: 10.5V |
| Cut In / Cut Out Voltage (Ignition override ON, 24V) | CUT IN: 24.4V, CUT OUT: 21.0V |
User Manual and Support
KickAss has warehouses located on both the East and West Coast of Australia. Express orders are dispatched same business day if ordered before 12pm AEST. Standard orders are dispatched within 2-3 business days. Deliveries are made during business hours, Monday to Friday.
At KickAss, we take full control of our product journey - from concept to creation - by designing, engineering, and manufacturing our own batteries and 12V accessories in our wholly owned facilities located in Australia, China, and the USA. This end-to-end approach allows us to maintain strict quality standards, drive innovation, and deliver unbeatable value. By owning our production facilities, we ensure every product that carries the KickAss name is built tough, tested rigorously, and ready for off-grid adventure.
Change your mind? No worries, our quick & easy online or in-store returns process has you covered. Learn more.

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Frequently Asked Questions
What types of batteries can the KickAss 12V/24V 40A DCDC Charger safely charge?
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.
How does the KickAss 40A DCDC Charger protect my vehicle’s start battery?
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.
Can I charge my auxiliary battery using solar panels with this KickAss charger?
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.
How do I set up the charger for my specific battery type?
This simple setup ensures your battery receives the correct absorption and float voltages, optimising charge efficiency and battery lifespan without complicated programming.
What safety features are built into the KickAss 40A DCDC Charger?
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.
What are the recommended installation requirements for the KickAss 40A DCDC Charger?
Following these installation guidelines ensures maximum charging efficiency, protects your wiring, and maintains safe operation even under heavy loads or harsh conditions.
Will the charger work with both 12V and 24V systems?
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.
How efficient is the KickAss 40A DCDC Charger during operation?
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.