KickAss 12V 120Ah Deep Cycle Lithium Battery

Safety Information

• Always use the specified charger designed for the lithium battery. Using an incorrect charger may cause damage or create a safety hazard.
• Do not charge the battery beyond its recommended voltage or current limits. Overcharging can lead to overheating, fire, or explosion.
• Never charge the battery if it is damaged or swollen. Contact your supplier for support.
• Ensure the battery is installed in a well-ventilated area to prevent overheating.
• Do not expose the battery to extreme temperatures. Charge and operate the battery within the temperature range specified in this manual.
• Follow the installation instructions carefully. Incorrect connections can result in damage or hazardous conditions.
• Do not short-circuit the battery terminals.
• Do not disassemble or modify the battery. Tampering with the battery can result in safety risks and will void the warranty.
• Ensure all connected devices and loads are within the battery's specifications to prevent overloading.
• In case of a battery fire, use a Class D fire extinguisher. Do not use water, as it can worsen the fire.
• Keep the battery away from children and unauthorised personnel.
• Dispose of the battery according to local regulations and guidelines for hazardous waste.

Product Specifications

Dimensions

A diagram showing the KickAss 12V 120Ah LiFePO4 Lithium Battery with dimensions labeled: 316mm length, 211mm height, and 159mm width. A second view shows the battery with a handle, and a weight indicator showing 11.85Kg.

Included Components

• 1 x 12V 120Ah LiFePO4 Lithium Battery
• 2 x M8 X 16mm bolt with flat and spring washer

Optional Accessories

• KickAss N70 Tray (SKU: KAN70TRAY)
• KickAss Battery Linking Cables 2AWG 400mm (SKU: BALINK8400)

Product Features

A-Grade LiFePO4 Prismatic Cells

A-Grade Prismatic cells are batched during manufacturing to optimise battery performance when the cells are assembled in the battery pack. This batching allows the cells to charge and discharge at the same rate, ensuring you achieve the full design capacity of the battery and extending the life of the battery.

120Ah Usable Capacity

With 100% usable capacity, this battery is ideal for powering your off-grid setup for your weekend getaway. Average power consumption and estimated run time of typical devices used in an off-grid setup are referenced in Table A.

120A Continuous Charge and Discharge

The KickAss 12V 120Ah Deep Cycle Lithium Battery - LiFePO4 supports a 1C (120A) continuous charge and discharge current.

Parallel and Series Configuration

KickAss 12V 120Ah Deep Cycle Lithium - LiFePO4 batteries can be connected in either parallel or series configurations, but not simultaneously in both. Connect up to 4 batteries in series or 4 batteries in parallel.

Parallel Configuration

In a parallel configuration, the system voltage remains constant while the capacity (measured in Ah) and the total continuous charge and discharge ratings of the battery bank increase.

Series Configuration

When connecting batteries in series, the system voltage is increased, and the capacity measure in Ah and total continuous charge and discharge rating of the battery bank maintained.

4000+ Cycles @ 80% Depth of Discharge - 0.5C

The KickAss 12V 120Ah Deep Cycle Lithium Battery - LiFePO4 is rated for 4000+ cycles at a depth of discharge (DoD) of 80% at discharge rate of 0.5C. Reducing or increasing the average DoD of the battery will increase, or reduce the cycle life of the battery accordingly.

A line graph titled 'KA12120XB-LION Cycle Life at 25°C -0.5C' shows battery capacity percentage on the Y-axis (from 70% to 105%) and cycle count on the X-axis (from 0 to 5000). The line starts at 100% capacity and gradually decreases to approximately 80% capacity by 4000 cycles.

Battery Management System (BMS)

The Battery Management System (BMS) is a crucial component of the LiFePO4 battery, ensuring it's safe under all conditions. The BMS performs two primary functions:

Monitoring

Continuously tracks key parameters such as cell voltage, charge/discharge rates, and temperature to maintain safe operating conditions for the battery. If the BMS detects deviations from acceptable parameters, it will initiate protective measures to prevent unsafe operation. The BMS will resume normal operation once the recovery condition is met. Refer to the troubleshooting section of the manual for further details.

The BMS monitors the following parameters:

• Battery Pack Under/Over Voltage
• Cell Under/Over Voltage
• Continuous Over charge/Discharge Current Thermal Protection
• Pulse Overcharge/Discharge Current
• Short Circuit
• Charge Over/Under Temperature
• Discharge Over/Under Temperature

See the troubleshooting section of this manual for further information on system alerts.

Cell Balancing

Balances the voltages of individual LiFePO4 cells during charging to ensure even cell performance, thereby enhancing battery longevity.

Product Overview

Wiring Diagram

A diagram illustrating how to connect the battery terminals. It shows an M8 bolt, a spring washer, a regular washer, and a battery hook-up cable being attached to the battery terminal.

Parallel Wiring Diagram

Diagram showing four batteries connected in parallel, labeled 'BATTERY 004 SOC 100%' to 'BATTERY 001 SOC 100%', with 'LOAD +' and 'LOAD -' connections. Notes explain charging requirements and recommended cables.

Series Wiring Diagram

Diagram showing four batteries connected in series, labeled 'BATTERY 004 SOC 100%' to 'BATTERY 001 SOC 100%', with 'LOAD +' and 'LOAD -' connections. Notes explain charging requirements and recommended cables.

Product Installation

Battery Setup

Charging the Battery

To achieve optimal performance and ensure safe operation, it is essential to fully charge the battery and allow it to rest for 30 minutes before connecting any loads. This step is crucial for the proper functioning of the battery, particularly in parallel or series configurations.

For the initial charge, use an ACDC charger to ensure the battery receives a complete charge. Relying on a vehicle alternator or solar power for this process is not recommended, as these sources may not consistently provide adequate input. Issues such as the vehicle engine needing to be turned off or insufficient solar conditions could prevent a full charge.

Wired Connection

WARNING: Before connecting the battery, ensure it has been fully charged and allowed to rest for 30 minutes.

WARNING: Verify that all loads or devices to be powered by the KickAss LiFePO4 battery are turned off before starting the installation.

WARNING: Ensure any isolation devices used in the installation are switched off before beginning.

1. Position the battery in the desired mounting location.
2. Secure the battery in place using a battery tray or an equivalent mounting method.
3. Verify that all positive connections for devices and fuses are terminated correctly.
4. Verify that all negative connections for devices are terminated correctly.
5. Connect the main battery positive terminal to the main system fuse. Use a 13mm socket to tighten the M8 bolts supplied with the battery to 20Nm.
   • If multiple connections are required for the main battery positive terminal, connect each system positive to the main battery positive terminal. Use a 13mm socket to tighten the M8 bolts to 20Nm.
6. Connect the main system negative terminal. Use a 13mm socket to tighten the M8 bolts to 20Nm.
   • If multiple connections are required for the main battery negative terminal, connect each system negative to the main battery negative terminal. Use a 13mm socket to tighten the M8 bolts to 20Nm.
7. The system is now ready to be activated. Turn on any isolation devices and power on any connected devices.

Troubleshooting

BMS Protection and Expected Behaviour