This Li-ion 18650 5S 20A Battery BMS Charger Protection Board is a Battery Management System (BMS) module designed for 5-series (5S) lithium-ion (Li-Ion) battery packs, commonly used in applications like electric vehicles, energy storage systems, and portable power supplies. This module offers comprehensive protection and balancing features to ensure safe and efficient operation of the battery pack.

Features :

• Cell Configuration: Designed for 5S Li-Ion battery packs, providing a nominal voltage of 21V (3.7V per cell).
• Continuous Discharge Current: Up to 18A, with a peak of 26A, suitable for high-power applications.
• Continuous Charge Current: Up to 15A, with a peak of 20A, ensuring efficient charging.
• Overcharge Protection: Monitors individual cell voltages, cutting off charging if any cell exceeds 4.25V ±0.025V.
• Overdischarge Protection: Disconnects the load if any cell voltage drops below 2.7V ±0.08V, preventing deep discharge.
• Cell Balancing: Employs passive balancing with a current of 56mA per cell to maintain uniform voltage levels across all cells.
• Thermal Protection: Operates within a temperature range of -10°C to 70°C, with built-in thermal shutdown to prevent overheating.
• Compact Dimensions: Measures 60mm x 40mm x 6.3mm, facilitating integration into various battery pack designs.

Specifications :

• Battery Type: Li-Ion (Lithium-Ion)
• Number of Cells: 5
• Nominal Voltage: 21V
• Maximum Charging Voltage: 21V
• Charging Voltage per Cell: 4.25V ±0.025V
• Discharge Cut-Off Voltage: 2.7V ±0.08V
• Continuous Discharge Current: 18A
• Peak Discharge Current: 26A
• Continuous Charge Current: 15A
• Peak Charge Current: 20A
• Cell Balancing Current: 56mA per cell
• Operating Temperature Range: -10°C to 70°C
• Dimensions: 60mm x 40mm x 6.3mm

Applications :

• Electric Vehicles (EVs): Ideal for managing battery packs in electric bikes, scooters, and small electric cars.
• Energy Storage Systems: Suitable for home or industrial energy storage solutions.
• Portable Power Stations: Enhances the safety and longevity of battery packs used in off-grid power supplies.
• DIY Projects: Useful for hobbyists building custom battery packs for various applications.