Abyss Battery SEAL Series Lithium Battery Module

Preface

The SEAL series lithium batteries are specially designed for fishing boats and bass boats, featuring high protection, high performance, high reliability, and an attractive appearance. They offer advantages in safety, energy density, service life, and environmental protection. With an intelligent battery management system (BMS), they provide customers with a safe and stable power supply service.

This user manual introduces the product structure, parameters, basic procedures, installation methods, as well as operation and maintenance in detail.

Please follow these requests during installation, operation, and maintenance:

• Connect wires properly during installation; do not reverse connect. To avoid short circuits, do not connect positive and negative poles with a conductor (e.g., wires).
• Do not mix batteries from different manufacturers, types, or models, nor old and new batteries together.
• The SEAL lithium batteries do not support parallel connection, and all series of battery packs are prohibited from being connected in series.
• Ensure that the electrical parameters of the related equipment are compatible before use.
• If the battery is in storage for over 3 months, or has not been fully charged for 3 months, maintenance is required. Charge the battery to 100% SOC and keep the charger ON for more than 8 hours. If the battery continues to be in storage, it is advised to adjust the SOC to 20%~80%.
• For your safety, do not arbitrarily dismantle any components unless you are a specialist or authorized personnel. Device breakdown due to improper operation will not be covered under warranty.

The product has been strictly inspected before shipment. If you find abnormal phenomena such as swelling of the shell, please contact customer service. The use environment and storage methods impact the service life and reliability of this product, so environmental factors must be fully considered before installation and use to ensure the system works in a suitable environment.

Disclaimer: Due to continuous updates and improvements in products and technologies, the content in this document may not completely match the actual product. For product updates, please contact customer service.

2. Product Introduction

2.1 Brief Introduction

The SEAL series lithium batteries are available in two voltage platforms: 24V (FM3) and 36V (FN4). The positive electrode is made of lithium iron phosphate (LiFePO4) material. It features a high-performance and high-reliability BMS to manage cells, including protection functions for overvoltage, undervoltage, charge over-current, discharge over-current, over-temperature, low temperature, and short circuit. It also includes cell voltage balance, capacity calculation, SOC calculation, cycle life accumulation, and low temperature heating functions.

2.2 Features

• The positive electrode uses lithium iron phosphate (LiFePO4) material for good safety performance.
• Offers 4000 cycles at 25°C (77°F), 0.5C charge and discharge, 80% Depth of Discharge (DoD).
• High-performance BMS with over-discharge, over-charge, over-current, temperature, and other protection functions, including automatic charge/discharge management and single cell balance.
• Built-in thermal aerosol fire suppression system for high-efficiency, eco-friendly fire safety.
• Supports a maximum 100A discharge current (refer to Chapter 9 for specifications).
• Features a self wake-up function: the battery automatically wakes up and enters charging state when connected to an external charger, even if turned off.
• One-click start on the X3 display panel for easy ON/OFF control and monitoring (voltage, current, SOC, etc.).
• Low self-discharge rate: FM3 consumes less than 50mA in standby (powered ON), FN4 consumes less than 35mA (powered ON). When powered OFF, idle consumption drops below 0.05mA.
• Wide working temperature range for charging/discharging: 2°C to 63°C (35.6°F to 145.4°F).
• Built-in heater to warm the battery in low temperature conditions.
• Compact size, light weight, and high energy density.

2.3 Product Dimensions

2.4 External Interface Definition

2.4.1 CAN Interface Definition

2.4.2 COM Interface Definition

2.4.3 Indicator Light Definition

2.5 Optional Accessories

2.5.1 Cable Kit 1

2.5.1.1 Crimping of Positive and Negative Terminal Connectors

The connector consists of four main parts: plug body, cable sealing ring, locking clip, and rear cap.

Installation Steps:

1. Refer to the diagram for wire stripping. Recommended stripping length: 12 ± 1 mm.
2. Connector Crimping:
1. First, remove the rear cap, locking clip, and cable sealing ring from the plug body. Then slide them onto the stripped cable in the same order.
2. Insert the stripped copper wire into the crimping terminal and perform the crimping, as shown in the diagram.
4. Properly position the sealing ring and locking clip, then tighten the rear cap, as shown below.

2.5.1.2 Crimping of Charging Input Connector

The plug consists of the following main components: wire terminals, plastic housing, wire sealing ring, rear cap, and gel core sealing ring.

Installation Steps:

1. Pass the wire through the plastic housing, then the sealing ring, and finally the rear cap, as shown in the figure below.
3. Ensure the terminals are fully and securely inserted into the gel core section, as shown below.
5. Fit the sealing ring into place to ensure proper waterproofing and cable retention, as shown in the diagram below.
7. Tighten and secure the rear cap to complete the connector assembly, as shown below.

2.5.2 Cable Kit 2

2.5.3 X3 Display Panel

The X3 monitor is a 2.8-inch display panel developed for this series of lithium batteries. It displays real-time operating information and is equipped with a built-in Bluetooth module, allowing users to monitor battery status via a mobile APP. It is ideal for lithium battery systems in small fishing boats, offering compact size, high waterproof rating, cost-effectiveness, and high reliability for outdoor installations.

To use the X3 display panel as the lithium battery monitor, follow these steps:

1. Connect the X3 screen to the lithium battery using the included M12-8Pin communication cable.
2. To turn ON the battery: press and hold the round momentary switch on the screen for 3 seconds, then release.
3. Activate the Bluetooth function on your smartphone, connect the “HALI” APP to the X3 panel, and view detailed battery information. For APP download, please contact customer service.

For more information about the X3 display panel, please refer to the X3 user manual.

3. Product Installation

3.1 General Description

Do not install or use FM3 or FN4 battery in series or parallel!

Do not install or use damaged lithium batteries!

Please ensure correct polarity connection between the lithium battery, charger, and load!

3.2 Unboxing

Check the lithium battery for good condition upon unboxing. If the battery is damaged, please contact customer service. Verify that all accessories are complete according to the packing list. If accessories are missing, please contact customer service.

3.3 Positioning and Perforation

Choose a sturdy surface of appropriate size to place the battery tray. Tray dimensions are shown in Figure 3-1.

3.4 Installation Fixed

Use M4 × 15 self-tapping screws to secure the tray. Follow Figure 3-2 for screw locations.

Place the battery onto the tray and secure it using the provided straps.

3.5 Single Lithium Battery Wiring

3.5.1 Typical Wiring Diagram

3.5.2 Power Cable Wiring

Before wiring, make sure the remote switch or the X3 monitor is disconnected from the lithium battery, and the battery is powered OFF!

1. Remove the black rubber protective cover from the positive (+) terminal of the lithium battery.
2. First, connect cable L6 between the battery (+) terminal and the positive side of the circuit breaker. Then, connect cable L1 between the (+) terminal of the lithium battery and the positive input of the trolling motor. Ensure all connections are secure and tightened. (If a circuit breaker is installed, connect cable L1 between the trolling motor and the circuit breaker. After wiring is complete, securely reattach the protective cover on the breaker terminals.)
3. Remove the black rubber protective cover from the negative (-) terminal of the lithium battery.
4. Connect cable L2 between the trolling motor's negative terminal and the battery (-) terminal. Ensure a tight and secure connection.
5. Connect cable L3 between the output of external charger 1 and Charger Input 1 of the lithium battery. Ensure a tight and secure connection.
6. Connect cable L4 between the output of external charger 2 and Charger Input 2 of the lithium battery. Ensure a tight and secure connection.

3.5.3 Communication Cable Wiring

Use the M12-8Pin communication cable (L5) to connect the battery COM communication port with the X3 monitor.

3.5.4 Lithium Battery Power ON and OFF

When using the optional X3 screen, the battery can be powered ON/OFF using the round momentary switch on the screen. The specific operations are as follows:

• Power ON: Press and hold the round momentary switch on the X3 screen for about 3 seconds and release. The lithium battery will turn ON.
• Power OFF: Press and hold the round momentary switch until the shutdown confirmation popup window appears on the screen, then hold for about 3 seconds until the battery powers OFF.

3.5.5 Disconnect the Lithium Battery

1. Turn OFF all connected loads and chargers.
2. Power OFF the lithium battery.
3. Disconnect the communication cable between the X3 display panel and the battery.
4. Disconnect the cables between the lithium battery terminals (positive and negative) and the trolling motor or other loads.
5. Disconnect the cables between the lithium battery and external chargers.

4. Battery Maintenance

4.1 General Description

• Before cleaning and maintaining the lithium battery, ensure all loads and charging equipment are disconnected from the battery.
• Before cleaning and maintenance, place a protective cover on the terminal to prevent the risk of short circuit caused by contact.

Do not open or disassemble the lithium battery!

4.2 Security Check

Check the battery for cracks, deformations, leaks, or other damage. Verify that battery connection points are not loose and wire insulation is not damaged. If the battery is found to be damaged, it must be replaced immediately. It is forbidden to charge or use damaged lithium batteries. Do not touch any liquid leaked from a ruptured battery.

To enable the BMS to calculate the SOC more accurately and eliminate cumulative deviation, it is recommended to perform a full discharge (0% SOC) and full charge (100% SOC) every 3 months.

4.3 Surface Cleaning Method

To clean the lithium battery, wipe the outer surface with a soft, dry cloth or paper towel. Do not use liquids, solvents, or abrasive tools.

4.4 Battery Storage (Not in Use for Over 3 Months)

When the battery is not in use for over 3 months, it is advised to charge it to 20%~30% SOC every 3 months to maintain its health.

If the lithium battery is not used for a long time, please use the round momentary switch on the X3 monitor or remote switch to turn OFF the lithium battery and confirm it is OFF.

4.5 Use the Battery in a Low Temperature Environment

When the cell temperature drops below 2°C (35.6°F), the X3 monitor will display a "low temperature fault" warning. Connect the battery to a charger; the automatic heating function will activate to warm the battery up to a charging state. Please be patient, as the heating process may take up to 110 minutes before the battery enters charging mode.

4.6 Over-Discharged Battery

When the battery is discharged to low voltage protection and remains uncharged for 10 minutes, it will automatically shut down. Press and hold the remote switch or the round momentary switch on the X3 monitoring screen for 3 seconds and release to restart the battery. After restarting, please charge it within 10 minutes! When the battery detects an external charging voltage greater than the threshold (see Table 4-1), it will automatically wake up and start charging.

Please charge your battery as soon as possible when it is in low voltage protection, or it might cause over-discharged and permanent damage to cells if not recharged within 3 months. Using battery with damaged cells might cause fire, explosion, or other hazards.

4.7 Charge Only Mode

The battery supports a charge-only mode. When the battery is in the OFF state, the charger can wake up the battery and initiate charging, but the battery will not discharge. The charging voltage must follow Table 4-1. In charge-only mode, the running light on the battery will flash rapidly, as detailed in section 2.4.3.

5. Storage

Follow the storage instructions in this manual to increase the service life of the lithium battery during storage. Otherwise, the battery may be over-discharged and damaged. If the battery is found damaged during inspection, do not attempt to charge or use it.

• The optimum storage conditions are: 0°C~35°C (32°F~95°F), 20%~80% SOC, ≤65% RH.
• Acceptable storage conditions for a short time (within one month) are: -20°C~45°C (-4°F~113°F), 20%~80% SOC, <65% RH.
• Deviating from short-term storage conditions may affect the battery's cycle life.
• The storage self-discharge rate is less than 3%/month.

For longer storage periods, consider the following recommendations to optimize storage and minimize self-consumption:

• For up to 6 months: Adjust the State of Charge (SOC) to 20~30%.
• For up to 1~2 years: Maintain the SOC at 30~50%. Keep the ambient temperature between 0°C (32°F) and 35°C (95°F) to maintain battery health and performance.

When storing the lithium battery, please disconnect the remote switch or X3 monitor from the lithium battery!

6. Transportation

Before transporting lithium batteries, check all applicable local, national, and international laws and regulations. Lithium battery transportation falls under the ninth category of dangerous goods in the UN3480 standard. In some cases, the transportation of scrapped, damaged, or recalled lithium batteries may be specifically restricted or prohibited.

7. Disposal or Recycle

Please discharge the lithium battery to 0% SOC before discarding it. Use electrical tape or other insulating tape to insulate the positive and negative poles of the battery to prevent short circuits. Disposal and recycling of lithium batteries must comply with local, state, and federal laws and regulations. Lithium batteries can also be returned to the manufacturer for disposal.

8. FAQ

8.1 Lithium Battery Failure Quick Check

9. Specification