JLGW BMS LFP 4S 6A

JLGW BMS LFP 4S 6A Hardware

Product Data Sheet

The BMS LFP 4S 6A by JLGW is a compact and reliable Battery Management System tailored for 4S (12.8V nominal) LiFePO4 battery packs. Engineered for low- to medium-current applications, this 6A BMS provides intelligent protection features for both charge and discharge cycles. Whether you are building a power bank, solar storage module, or small e-vehicle power system, this board offers safety, balance, and efficiency at an affordable price.

Technical Specifications

Specification	Details
Battery Type	LiFePO4 (Lithium Iron Phosphate)
Battery Configuration	4 Series Cells (4S)
Nominal Voltage	12.8V
Maximum Charge Voltage	14.6V (3.65V per cell)
Continuous Discharge Current	6A
Charging Current	Up to 6A
Overcharge Protection	~3.75V ± 0.05V per cell
Over-discharge Protection	~2.0V ± 0.1V per cell
Overcurrent Protection	Yes (Instant Trip)
Short Circuit Protection	Yes (Auto Recovery)
PCB Dimensions	Compact Layered Design
Manufacturer	JLGW

Key Features

• •

  4S BMS for LFP Chemistry Fully compatible with 12.8V LiFePO4 battery banks.

• •

  Safe Charging/Discharging Built-in overcharge, over-discharge, and short circuit protection.

• •

  Stable 6A Continuous Output Perfect for medium-drain applications like backup systems and portable power stations.

• •

  Efficient PCB Design Designed for smooth integration into battery enclosures with thermally optimized layout.

• •

  Extended Battery Life Balanced cell voltages extend the operational lifespan of LiFePO4 cells.

Applications

• •Solar Street Lights
• •Emergency Power Banks
• •Electric Tools
• •Small EV Packs
• •Medical Battery Packs
• •Industrial Automation Backups

The PCM LFP 04S/6A (JLGW) is a Battery Protection Circuit Module (PCM) designed for 4 series Lithium Iron Phosphate (LFP) battery packs, supporting a 6A continuous discharge current. This module is ideal for moderate-power applications such as energy storage systems, backup power solutions, or small electric vehicles. It provides essential protection features, including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe operation of the battery. The JLGW designation refers to the specific manufacturer or design. The PCM also helps balance the battery cells, maintaining consistent voltage across the pack and extending its lifespan.