BMS LFP 4S 15A WITH BAL WITH CONNECT (JLGW) (b35a)

JLGW BMS LFP 4S 15A WITH BAL WITH CONNECT Hardware

Product Data Sheet

The BMS LFP 4S 15A WITH BALANCE WITH CONNECT (JLGW) is a high-performance Battery Management System tailored for 4S (12.8V nominal) lithium iron phosphate battery packs. It combines reliable 15A discharge capability with smart passive cell balancing and an integrated connector, making it ideal for quick installations and battery builds in demanding environments.

Technical Specifications

Parameter	Value
Battery Chemistry	LiFePO4 (LFP)
Nominal Voltage	12.8V (4S Configuration)
Charging Voltage	14.6V
Continuous Discharge	15A
Maximum Charging Current	15A
Balance Function	Yes, Passive Balancing
Balance Activation Voltage	≈ 3.5V/cell
Overcharge Protection	Yes
Overdischarge Protection	Yes
Short Circuit Protection	Yes
Temperature Protection	Yes (NTC included)
PCB Color	Green
Form Factor	Compact with Screw Mount Holes
Connector	JST-style Connector Pre-Soldered

Key Features

• •

  Optimized for 4S LiFePO4 Batteries Reliable support for 12.8V battery configurations with safe charge/discharge operations.

• •

  High Current Capability Supports up to 15A continuous discharge, ideal for mobility and mid-range energy storage.

• •

  Built-In Cell Balancing Enhances battery life and efficiency by maintaining voltage balance among all cells.

• •

  Plug-and-Play Integration Comes pre-installed with a JST-style connector, reducing wiring complexity.

• •

  Advanced Protection Circuits Protects against overvoltage, undervoltage, short circuits, reverse polarity, and thermal overload.

• •

  Compact & Durable Design Space-saving design with screw mounts for firm PCB installation in enclosures or casings.

Applications

• •Solar Power Banks & Inverters
• •E-bikes & Electric Scooters
• •DIY 12V LFP Battery Packs
• •Smart Home Energy Storage Systems
• •Prototyping, Testing & R&D Projects

The PCM LFP 04S/15A WITH BALANCE WITH CONNECT is a Battery Protection Circuit Module (PCM) designed for 4 series Lithium Iron Phosphate (LFP) battery packs, supporting a 15A continuous discharge current. This module is ideal for moderate-power applications, such as energy storage systems, backup power solutions, and small electric vehicles. It features cell balancing, ensuring that the voltages of individual cells are kept in balance for optimal performance and longevity. The WITH CONNECT designation implies that the module includes easy connectivity for integration into the battery system. The PCM provides essential protection features like overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe operation of the battery.