4S 20A NMC WITH BALANCE

The JLGW BMS NMC 4S 20A with Balance is a compact and reliable Battery Management System designed for 4-cell (4S) lithium-ion (NMC) battery packs. Built to support 20A continuous discharge, it provides stable power delivery along with essential protection features, making it suitable for electric tools, e-bikes, robotics, solar storage, and backup systems.

This BMS includes passive cell balancing, ensuring uniform voltage across all cells, which improves performance, safety, and overall battery lifespan.

Key Features

4S NMC Compatibility:
Designed specifically for 4-cell lithium-ion (NMC) battery packs.

20A Continuous Current:
Stable discharge capability for medium-power applications.

Passive Cell Balancing:
Maintains consistent voltage across all cells to extend battery life.

Comprehensive Protection:
Protects against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes.

Smart Monitoring Chip:
Automatic voltage and current monitoring for safe operation.

Compact Heat-Sink PCB Design:
Aluminum heat-sink layer improves thermal performance and durability.

Technical Specifications

Brand: JLGW
Model: BMS NMC 4S 20A WITH BALANCE
Battery Type: Lithium-ion (NMC)
Cell Configuration: 4S
Nominal Voltage: 14.8V
Max Charge Voltage: 16.8V

Continuous Discharge Current: 20A
Charge Current: 10A

Balancing: Passive
Balance Current: 42mA (typical)

Protection Functions:
Overcharge, over-discharge, overcurrent, short circuit, temperature protection

Operating Temperature: −20°C to +60°C

PCB Type: Blue aluminum heat-sink layer
Connectors: JST balance connector, B+/B− terminals

Applications

The JLGW NMC 4S 20A BMS is ideal for:

• E-bike battery packs

• Power tool batteries

• DIY robotics and automation projects

• Portable medical devices

• Solar energy storage systems

• UPS and backup battery packs

Why Choose JLGW NMC 4S 20A BMS?

Reliable Safety Protection:
Multiple protection layers prevent battery damage and failures.

Balanced Cell Performance:
Passive balancing maintains uniform cell voltages.

Efficient Power Handling:
20A continuous current for medium-power systems.

Compact & Durable Build:
Heat-sink PCB design improves thermal performance and longevity.

Installation Guide

Verify Compatibility:
Ensure the BMS matches your 4S NMC battery configuration.

Connect Properly:
Attach balance leads and main terminals securely.

Test Before Use:
Check pack voltage and protection functions before full-load operation.

Bulk Orders Available

Available in Patna, Bihar | PAN India Delivery

Whatsapp: 7992437327