Lithium Battery Charger Protection Module (BMS) 5S (21V – 15A)

Product Overview

The BMS 5S 15A Lithium Battery Charger Protection Module is a Battery Management System (BMS) designed for 5-cell lithium-ion (Li-ion) or LiFePO4 battery packs. It provides essential overcharge, over-discharge, overcurrent, and short-circuit protection, ensuring the safe and efficient operation of 21V battery systems. With a 15A continuous discharge current, this module is ideal for electric tools, solar power storage, and other battery-powered applications.

Key Features:

• Supports 5S Battery Packs – Compatible with Li-ion (3.7V/cell) and LiFePO4 (3.2V/cell).
• 15A Continuous Discharge Current – Suitable for medium-power applications.
• Overcharge & Over-discharge Protection – Prevents battery damage and enhances lifespan.
• Overcurrent & Short Circuit Protection – Ensures safe operation and prevents failures.
• Cell Balancing Function – Distributes charge evenly across all cells.
• Compact & Lightweight Design – Easy to install in various applications.

Technical Specifications:

• Battery Configuration: 5S (5 cells in series)
• Supported Battery Types: Lithium-ion (3.7V per cell), LiFePO4 (3.2V per cell)
• System Voltage: 21V
• Continuous Discharge Current: 15A
• Overcharge Voltage Protection: ~4.2V per cell (Li-ion), ~3.65V per cell (LiFePO4)
• Over-discharge Voltage Protection: ~2.5V per cell (Li-ion), ~2.0V per cell (LiFePO4)
• Overcurrent Protection: Activated when exceeding rated current
• Short Circuit Protection: Yes
• Balance Function: Yes, passive balancing
• Operating Temperature: -20°C to 60°C
• Module Dimensions: Compact for easy integration

Applications:

• Electric Tools & Devices – Ensures battery longevity and safety.
• Solar Energy Storage – Optimized for renewable energy battery packs.
• Portable Power Banks – Ideal for DIY battery projects.
• E-bike & Scooter Batteries – Provides efficient power management.

Why Choose the BMS 5S 15A Module?

This BMS module offers reliable protection, enhanced safety, and cell balancing, making it an excellent choice for 5S lithium battery applications.