





KickAss Flexicharge 12V 4A ACDC Smart Battery Charger For Lead Acid, AGM & Lithium Batteries
Pickup available at Acacia Ridge Store
Usually ready in 1 hour
1 Year Warranty
This product is covered by a 1 Year Limited Warranty.
Description
KickAss Flexicharge 4A Smart 12V/6V Battery Charger is a reliable tool for maintaining and optimising battery performance. Featuring Smart Maintenance Charging, it delivers a steady 4A charge for long-term storage or infrequent use. With built-in diagnostics for battery health, starting power, and alternator performance, it prevents breakdowns and ensures your engine will always start reliably, making it ideal for all your vehicle maintenance needs.
Specifications
Assembled Dimensions | 18.5 (L) x 5.5 (H) x 9 (W) |
Input Voltage / Frequency | 220 - 240V / 50Hz |
---|---|
No-Load Power Consumption | <2.0W |
Maximum Input Current / Power | 0.75A / 75W |
Output Voltage | 6V / 12V |
Output Current | 1A / 4A |
Lithium Activation Mode | Yes |
AGM Recondition Mode | Yes |
In Lithium Model, the Charger Will Transfer from Float to Bulk When Battery Voltage Is | ≤ 13.2V |
Safety Protection Level | Reverse polarity protection, short circuit protection, over temperature protection & charge memory |
Australian Certification Number | CCS-240528-EA |
IP Protection Level | IP65 |
Recommended Battery Capacity (Ah) | 4 - 40Ah |
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.

The charger is controlled by a high-tech microprocessor that charges the battery in 9 separate stages. The microprocessor senses the requirements of the battery, and delivers the optimal current and voltage. This means your battery charges at maximum efficiency, every time.

This 4A AC to DC battery charger is designed as a maintenance charger, ideal for keeping your battery fully charged and in optimal condition over time. It provides a steady, low-current charge that prevents overcharging while maintaining the battery’s health, making it perfect for long-term battery storage.

This versatile battery charger can be configured to provide the optimal charging output for different battery sizes and chemistries. With adjustable charging currents of 4A and 1A, it’s perfect for delivering a steady charge for long-term storage or infrequent use.

This charger is compatible with most common battery chemistries, including AGM, Gel, Lithium, LiFePO4, and Lead Acid. Additionally, the adjustable amperage output allows you to cater to the unique requirements of your specific battery.

If your lithium battery has dropped below the safety voltage parameters of its BMS, you can use the charger’s Lithium Activation Mode and it will charge your lithium battery until it reaches the cut-in voltage and can re-start normal charging cycles.

The AGM recondition mode will restore the capacity and performance of your AGM batteries by breaking down any built up lead sulphate deposits. This extends the battery life and improves performance, especially after long periods of disuse or deep discharges.

The charger includes multiple protective features to protect your valuable battery, including reverse polarity protection, short circuit protection, and overheating protection.

- Battery Health Test
- Battery Starting Power Test
- Alternator Performance Test
Benefit: A one-stop shop to test your starter battery health, cranking power, and alternator performance of your vehicle that allows you to identify any potential issues in your vehicle early, preventing breakdowns and ensuring reliable starts.