DATOUBOSS 12V 300Ah LiFePO4 Battery User Manual

1. Introduction

This manual provides essential information for the safe and efficient use of your DATOUBOSS 12V 300Ah LiFePO4 Deep Cycle Battery. This lithium iron phosphate battery is designed for various applications requiring reliable and long-lasting power storage, such as RVs, marine systems, solar energy setups, and off-grid power solutions. Please read this manual thoroughly before installation and operation.

2. Important Safety Instructions

Always follow these safety guidelines to prevent injury, damage to the battery, or other property. Failure to comply with these instructions may void your warranty.

2.1 General Safety Warnings

• Do not short-circuit the positive and negative terminals.
• Do not throw the battery into fire or water.
• Use only a standard charger that matches the output voltage of the lithium battery.
• Keep the battery away from children and pets.
• Do not disassemble, puncture, or modify the battery.
• Ensure proper ventilation during charging and discharging.

2.2 Integrated Battery Management System (BMS) Protections

The DATOUBOSS LiFePO4 battery features an intelligent 200A BMS to protect the battery from various conditions. The BMS will automatically shut down the battery if a problem is detected and will turn it back on once the condition is corrected.

• Overcharge Protection: Prevents damage from excessive charging voltage.
• Overdischarge Protection: Protects against deep discharge that could harm the battery.
• Overcurrent Protection: Safeguards against excessive current draw.
• Short-Circuit Protection: Automatically disconnects in case of a short circuit.
• High Temperature Cut-off: Disables operation if the internal temperature exceeds safe limits.
• Low Temperature Protection: Prevents charging or discharging at dangerously low temperatures.
• Active Cell Balancing: Ensures uniform charge across all cells for extended lifespan.

Figure 1: Intelligent BMS Protections

3. Product Overview

The DATOUBOSS 12V 300Ah LiFePO4 battery is a high-performance, deep-cycle energy storage solution. It utilizes Grade A lithium iron phosphate cells, offering superior energy density, stable performance, and a long operational life.

3.1 Key Features

• Integrated 200A Battery Management System (BMS) for comprehensive protection.
• Lightweight (approximately 31kg) and compact design for easy handling and installation.
• Utilizes Grade A LiFePO4 cells for enhanced safety and performance.
• Exceptional cycle life of 15,000+ cycles at 100% Depth of Discharge (DoD).
• Expected lifespan exceeding 10 years.
• Fast charging and discharging capabilities.
• No memory effect, allowing for flexible charging.
• Environmentally friendly, free from heavy metals, and non-toxic (SGS certified, RoHS compliant).

3.2 Applications

This battery is suitable for a wide range of applications, including:

• Recreational Vehicles (RVs) and campers
• Marine applications (boats, trolling motors, fish finders)
• Off-grid solar energy systems
• Home energy storage
• Emergency power supply and backup UPS
• Industrial and commercial uses

Figure 2: DATOUBOSS 12V 300Ah LiFePO4 Battery

Figure 3: Battery in an RV Application

4. Setup and Installation

4.1 Unpacking and Inspection

Upon receiving your battery, carefully unpack it and inspect for any visible damage. If damage is found, contact customer support immediately.

4.2 Connecting Batteries (Parallel and Series)

The DATOUBOSS 12V 300Ah LiFePO4 battery supports configurations of up to 4 batteries in parallel and 4 in series (Max. 4P4S). This allows for increased capacity and higher voltage systems.

• Parallel Connection: Connect positive terminals to positive terminals and negative terminals to negative terminals to increase total capacity (Ah) while maintaining the same voltage (12V).
• Series Connection: Connect the positive terminal of one battery to the negative terminal of the next to increase total voltage (V) while maintaining the same capacity (Ah).
• Series-Parallel (4P4S): For maximum energy storage, up to 16 batteries can be configured in a 4P4S arrangement, achieving a 51.2V 1200Ah system with 61440Wh of energy.
• Always use appropriate cables and connectors for your chosen configuration.
• Ensure all batteries are at a similar state of charge before connecting them in parallel or series.

Figure 4: Home Energy Storage System (4P4S Configuration)

Figure 5: RV Power Supply System

4.3 Charging

Use a LiFePO4 compatible charger that matches the battery's voltage and current requirements. The maximum charging current for a single 300Ah battery is 100A. Ensure the charger's output voltage is appropriate for a 12V LiFePO4 battery.

Figure 6: Battery Charging

5. Operation

Once installed and charged, your DATOUBOSS LiFePO4 battery is ready for operation. It offers a 100% depth of discharge, meaning you can use its full rated capacity without significantly impacting its lifespan. Monitor your system's voltage and current to ensure it operates within the battery's specifications.

6. Maintenance

DATOUBOSS LiFePO4 batteries require minimal maintenance due to their robust design and integrated BMS. Follow these guidelines for optimal performance and longevity:

• Regular Inspection: Periodically check battery terminals for corrosion and ensure connections are secure.
• Cleaning: Keep the battery surface clean and dry.
• Temperature Management: While the BMS provides temperature protection, avoid operating or storing the battery in extreme temperatures for extended periods. The optimal operating temperature range is generally between -20°C to 60°C for discharge and 0°C to 45°C for charge.
• Storage: If storing the battery for an extended period, ensure it is charged to approximately 50% State of Charge (SoC) and stored in a cool, dry place. The battery has an excellent low self-discharge rate.

Figure 7: Temperature Protection

Figure 8: IP65 Waterproof Rating

7. Troubleshooting

The integrated BMS handles most common issues by temporarily shutting down the battery. If the battery is not functioning as expected, refer to the table below. The BMS will automatically reset and resume normal operation once the fault condition is removed.

8. Technical Specifications

Figure 9: LiFePO4 vs. Lead-Acid Battery Comparison

9. Warranty and Customer Support

DATOUBOSS is committed to providing high-quality products and excellent customer service.

9.1 Warranty

This DATOUBOSS 12V 300Ah LiFePO4 battery comes with a 5-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.

9.2 Customer Support

If you encounter any issues or have questions regarding your battery, please do not hesitate to contact our professional customer service team. We offer 24-hour support to assist you.

• Contact Information: Refer to your product packaging or the DATOUBOSS official website for the most up-to-date contact details.
• Online Resources: Visit the DATOUBOSS brand store on Amazon or our website for FAQs and additional product information.

Figure 10: Warranty and Support Information