3S 50A Waterproof Daly Li-ion Battery Management System (BMS)

Overview:
The 3S 50A Waterproof Daly Li-ion BMS is designed for high-current lithium-ion battery packs with 3 cells in series. It supports continuous discharge currents up to 50 amps and features a waterproof design, making it ideal for applications exposed to moisture or harsh environments. This BMS provides comprehensive battery protection and cell balancing to ensure safety and longevity.

Technical Specifications:

• Battery Type: Lithium-ion (Li-ion / NMC)

• Cell Configuration: 3S (3 cells in series)

• Nominal Voltage: 11.1V (3.7V × 3)

• Maximum Charge Voltage: 12.6V (4.2V × 3)

• Overcharge Protection: ~4.25V per cell

• Over-discharge Protection: ~2.8V per cell

• Continuous Discharge Current: 50A

• Overcurrent Protection: Typically 60A or higher (model dependent)

• Short Circuit Protection: Yes, with auto-recovery

• Cell Balancing: Passive balancing

• Balancing Current: 30–60 mA per cell

• Ingress Protection: Waterproof housing (IP65 or higher, depending on model)

• Operating Temperature: -20°C to +60°C

• Port Configuration: Common or separate ports (model dependent)

• PCB Type: Encapsulated / waterproof coated or enclosed in sealed housing

Protection Features:

• Overcharge protection

• Over-discharge protection

• Overcurrent protection

• Short circuit protection

• Passive cell voltage balancing

• Waterproof design for outdoor and harsh environment use

Applications:

• High-power 3S Li-ion battery packs

• Electric vehicles and e-bikes

• Outdoor power equipment

• Solar energy storage with moisture exposure

• Portable power tools

• Marine and off-road vehicles