DALY BMS Li-ion 20S 72V 40A BMS Battery Management System for 18650 Battery Pack Balanced Charging Board

This 20S fixed-configuration BMS is strictly designed for Li-ion battery packs. It cannot be used with LiFePo4, Li-Metal, or LTO batteries. Built with high-quality MOSFETs and imported ICs, it ensures long cycle life and reliable performance.

Main Features & Protections:

• Overcharge Protection: Stops charging when cell voltage reaches 4.25V to prevent damage.
• Over-discharge Protection: Stops discharge when voltage drops to 3V, ensuring battery longevity.
• Overcurrent Protection: Protects the battery and devices from excessive current.
• Short-Circuit Protection: Shuts down the battery in case of circuit defects or damage.
• Temperature Protection: Safeguards the battery at high temperatures (up to 70℃) and low temperatures (down to -20℃).

Certifications:

ISO, FCC, RoHS, PSE, and CE approved – guaranteeing safety and quality compliance.

Applications:

Perfect for solar systems, RVs, electric bikes, skateboards, camping boats, power tools, lawn mowers, and household energy storage systems.

Advantages:

• Mechanical temperature sensor to protect batteries from overheating, overcharge, or over-discharge.
• Top-quality A-level protective IC from Seiko, Japan, with power balancing functionality.
• Strong load capacity with 40A constant discharge current and high-voltage resistant MOSFETs for efficient heat dissipation.
• Accurate voltage detection for each cell to prevent overcharge, over-discharge, and overcurrent issues.
• Reliable temperature protection during charging and discharging.
• Ultra-low power consumption (<50µA), ensuring minimal energy drain.
• High anti-corrosion, water-resistant, and ESD-conformal coated PCB for durability.

Package Includes:

• 20S Li-ion 40A 72V BMS
• Balanced wire sense cable (17-wire sense cable with connector)
• Instruction Manual