3S 15A 18650 Lithium Battery Protection Board

3S 15V 15A 18650 Lithium Battery Protection Board

A Battery Management System (BMS) board, often referred to as a battery protection board, is crucial for maintaining the safety and longevity of rechargeable lithium batteries. This 3S BMS board is specifically designed to protect and manage a series of three 18650 lithium batteries, providing comprehensive safety features including overcharge, over-discharge, overcurrent, short circuit, and high-temperature protection.

Key Features

• Voltage and Current:
  • Combines three 18650 batteries to form a battery pack
  • Provides up to 15V DC output
  • Supports up to 15A current
• Protection Functions:
  • Overcharge Protection: Prevents the battery from being overcharged.
  • Over-discharge Protection: Protects the battery from deep discharge, which can damage the cells.
  • Overcurrent Protection: Limits the current to prevent damage from excessive current draw.
  • Short Circuit Protection: Automatically disconnects to prevent damage from short circuits.
  • High-Temperature Protection: Ensures safe operation by preventing charging and discharging at unsafe temperatures.

Components

• Integrated Circuit Board: Manages the protection and balancing of the battery cells.
• Sampling Resistor: Measures the current flow to help regulate charging and discharging.
• Current Fuse: Provides an additional layer of protection by blowing out in case of extreme overcurrent situations.

Specifications

• Configuration: Supports 3S (three batteries in series) configuration.
• Output Voltage: Up to 15V DC
• Current Capacity: Up to 15A continuous current

Applications

This BMS board is suitable for heavy applications that require a stable and protected power supply, such as:

• Electric Tools: Drills, sprayers, and other power tools.
• Lighting: LED lights and emergency lighting systems.
• Inverters: Small power inverters for various electronics.
• Backup Power: Uninterruptible power supplies (UPS) and other backup power systems.
• Portable Devices: High-power portable electronics and devices.

Usage Notes

• Correct Wiring: Ensure that the wiring is done according to the specified diagram to avoid short circuits and ensure proper functioning.
• Heat Management: Monitor the temperature of the board during operation, as prolonged exposure to high temperatures can affect performance and safety.
• Battery Matching: Ensure that all three batteries have similar capacities and charge levels to avoid imbalance and potential damage.

Safety Warnings

• Compatibility: This BMS board is designed specifically for 18650 lithium batteries. Do not use it with other types of batteries without verifying compatibility.
• Avoid Prolonged Overcurrent: Although the board supports up to 15A, avoid operating at the maximum limit for extended periods to prevent overheating and damage.
• Handling: Handle the board with care to avoid damage to the components, especially during installation.

This 3S 15V 15A BMS board ensures the safe and efficient operation of lithium battery packs, providing essential protection and management for high-demand applications.

Package Includes:

1 x 3S 15A 18650 Lithium Battery Protection Board