This high-performance, deep-cycle LiFePO4 battery is designed for energy storage in 4WDs, caravans, and off-grid setups. Its key feature is its slimline footprint, making it perfect for installations where space is tight, such as behind the rear seat of a dual-cab ute. It’s built with A-grade prismatic cells and an internal Battery Management System (BMS) for safety and a long lifespan.

You can purchase the KickAss 12V 120Ah Slimline Lithium Battery directly online through our website, call our sales team on (07) 3123 4715, or find a KickAss Store near you.

You can view and download the official user manual here: KA12120SLIMXB-LION.

No. The 120Ah XB Slimline Lithium Battery is designed as a robust, high-value power source and does not include built-in Bluetooth connectivity or support for the KA Lithium App.

No. The 120Ah XB Slimline Lithium Battery does not feature the required communication ports to connect to a KickAss remote display unit.

To monitor information like State of Charge (SOC), current draw, and time remaining, you can install an external battery shunt. We recommend the KickAss 600A Smart Shunt with Battery and Tank Monitor for accurate, real-time system monitoring.

Below are the detailed technical specifications for the KickAss 12V 120Ah XB Slimline Lithium Battery.

Yes. You can connect up to four of these batteries in parallel to increase capacity, or up to four in series to increase voltage. You cannot mix parallel and series connections in the same bank.

Important:  Only connect batteries of the same model, capacity, and production batch for optimal performance.

No. This is a deep-cycle battery specifically designed for energy storage and powering accessories. It is not suitable for high-current cranking or engine starting applications and must not be installed under the bonnet.

Yes. For a secure and professional installation of the 120Ah XB Slimline Lithium Battery, we recommend the KickAss 120Ah Slimline Battery Tray.

You must use a battery charger with a specific LiFePO4 (Lithium) charging profile. The charger should have a maximum charge voltage of approximately 14.4V and must not exceed the battery's maximum continuous charge current of 120A. All KickAss AC-DC and DC-DC chargers are compatible.

The internal Battery Management System (BMS) may have activated Under Voltage Protection (UVP) because the voltage dropped below 10V. This is a safety feature to protect the battery from damage. To recover it, you need to use a compatible charger with a lithium activation or recovery mode.

1. Method 1 (Recommended): Use a KickAss AC charger with a dedicated "Lithium Recovery Mode".
2. Method 2: Connect the battery to a KickAss DCDC Charger. Our DCDC chargers have an automatic lithium recovery function that will wake the battery once it detects a charging source from the vehicle's alternator.

Note: Always disconnect all loads from the battery before attempting recovery.

If storing for an extended period, fully charge the battery first. To maintain its health and service life, it is recommended to fully charge it every three months. Store it in a cool, dry location between -20°C and 45°C.

1. Confirm your charger is set to a LiFePO4 / Lithium profile.
2. Check for BMS Protection: The battery may be in a protected state (e.g., Under Voltage, Over Temperature).
   • If the battery voltage is below 10V, follow the lithium recovery steps outlined above.
   • If the ambient temperature is below 0°C or above 60°C, the BMS will prevent charging. Move the battery to a location within its operational temperature range and allow it to cool down before attempting to charge again.
3. Ensure all cable connections at the battery terminals and the charger are clean, tight, and secure.