3s 20A 18650 Lithium Battery Protection Board

3S 15V 20A 18650 Lithium Battery Protection Board

A Battery Management System (BMS) or battery protection board is essential for safeguarding rechargeable lithium batteries, ensuring they operate within safe parameters. This 3S BMS board is specifically designed to protect and manage a series of three 18650 lithium batteries, providing comprehensive safety features to prevent overcharge, over-discharge, short circuits, and high-temperature charging.

Key Features

• Battery Configuration: Combines three 18650 batteries to form a single battery pack.
• Output Voltage: Provides up to 15V DC output.
• Current Capacity: Supports up to 20A continuous current.
• Protection Functions:
  • Overcharge Protection: Prevents the battery from being charged beyond safe limits.
  • Over-discharge Protection: Safeguards against excessively low battery levels.
  • Short Circuit Protection: Automatically disconnects in case of a short circuit to prevent damage.
  • High-Temperature Protection: Limits charging and discharging at elevated temperatures to prevent overheating.

Components

• Integrated Circuit Board: Manages protection and balancing functions for the battery pack.
• Sampling Resistor: Monitors current flow for accurate charging and discharging.
• Current Fuse: Provides additional protection by interrupting current flow in case of overcurrent situations.

Specifications

• Battery Type: Designed for 3S configuration with 18650 lithium batteries.
• Output Voltage: Up to 15V DC.
• Current Capacity: Supports up to 20A continuous current, suitable for heavy-duty applications.

Applications

This BMS board is suitable for various heavy-duty applications requiring a stable and protected power supply:

• Electric Vehicles: Small electric vehicles and mobility aids.
• Power Tools: High-power drills, saws, and other power tools.
• Industrial Equipment: Automation systems and machinery.
• Renewable Energy: Solar and wind energy storage systems.
• Backup Power: UPS systems and emergency power supplies.

Usage Notes

• Installation: Follow the manufacturer’s wiring diagram and guidelines for proper installation.
• Heat Management: Monitor board temperature during operation, ensuring adequate cooling to maintain optimal performance.
• Battery Maintenance: Ensure all three batteries in the pack are of similar capacity and charge level to prevent imbalance.
• Safety Precautions: Handle the board with care to avoid damaging sensitive components.

Safety Considerations

• Compatibility: Verify compatibility with 18650 lithium batteries before use.
• Current Limits: Avoid exceeding the maximum current rating (20A) for extended periods to prevent overheating and potential damage.
• Environmental Conditions: Operate within recommended temperature and humidity ranges for optimal performance and longevity.

This 3S 15V 20A BMS board ensures the reliable and safe operation of lithium battery packs, making it ideal for demanding applications where both power and protection are critical.

Package Includes:

1 x 3S 20A 18650 Lithium Battery Protection Board