BMS LFP 4S 30A JBD Electronic Appliances Circuit Board

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BMS LFP 4S 30A JBD Electronic Appliances Circuit Board

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MOQ : 10 Sets

BMS LFP 4S 30A JBD Electronic Appliances Circuit Board Specification

Silkscreen
White

Min. Line Spacing
0.15 mm

Insulation Resistance
>10^8

Min. Line Width
0.15 mm

Flame Resistance Level
UL94 V-0

Voltage Endurance
Withstands up to 60V

Test
100% E-Test

Board Type
PCB/PCBA for LiFePO4 batteries

Soldermask
Green

Hole Size
Min. 0.3 mm

Impedance
Controlled impedance design

Product Type
BMS (Battery Management System) Circuit Board

Base Material
FR4

Surface Finish
HASL Lead-Free

Copper Thickness
1 oz/ft2

Board Thickness
1.6 mm

Color
Green

Panel Size
Can be customized; Refer to the model for actual dimensions

Sensor Switch
Yes, built-in temperature sensor

Electrical Components
Premium quality SMD and DIP components (MOSFETs, balancing resistors, ICs)

Number Of Layers
2 Layers

Short Circuit Protection
Yes

Maximum Continuous Discharge Current
30A

Nominal Voltage (Pack)
12.8V (for LiFePO4 chemistry)

PCB Dimensions
Can vary, typically 85mm x 60mm (refer to datasheet/model)

Temperature Protection
Supported, with sensor interface

Weight
Approx. 80g

Application
Suitable for 12V LiFePO4 battery packs used in e-bikes, solar storage, portable power, etc.

Over-discharge Protection
Yes, typically 2.5V/cell

Balancing Function
Active/Passive balancing supported

Cell Configuration
4S (4 cells in series)

Overcharge Protection
Yes, typically 3.65V/cell

Communication Interface
UART/RS485 (select models)

Storage Temperature Range
-40C to 85C

Operating Temperature Range
-20C to 60C

BMS LFP 4S 30A JBD Electronic Appliances Circuit Board Trade Information

Minimum Order Quantity
10 Sets

Payment Terms
Cash in Advance (CID)

Supply Ability
500 Sets Per Month

Delivery Time
2-5 Days

Main Domestic Market
All India

About BMS LFP 4S 30A JBD Electronic Appliances Circuit Board

Product Specification

Voltage	220 V and also available in 440 V
Power Source	Electric
Automation Grade	Automatic
Material	Mild Steel and also available in Stainless Steel
Brand	VARSHA ENGINEERING
Phase	Single and also available in Three
Surface Finish	Color Coated
Minimum Order Quantity	1 Unit

Product Description

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All-in-One Protection and Battery Management

This BMS integrates essential battery management features: overcharge/discharge protection, short-circuit handling, and both active and passive cell balancing. It keeps each cell's performance aligned, extending the battery pack's lifespan while ensuring operation within safe voltage limits. The built-in temperature sensor provides real-time thermal monitoring, safeguarding both user and device from potential overheating.

Versatile Applications and Premium Build

Suitable for e-bikes, solar energy storage, and portable power units, this board is manufactured using high-grade FR4 material with a HASL lead-free finish. The design meets UL94 V-0 flame resistance standards, ensuring robust safety. The dual-layer PCB, white silkscreen, and green soldermask ensure both durability and clear assembly marking. Customizable panel sizes make it adaptable to various enclosure constraints.

FAQ's of BMS LFP 4S 30A JBD Electronic Appliances Circuit Board:

Q: How do I connect the BMS LFP 4S 30A JBD board to my 12V LiFePO4 battery pack?

A: To connect the BMS, wire each of the four LiFePO4 cells in series, ensuring correct polarity. Attach the cell balance leads to the corresponding positions on the board, and connect the main positive and negative terminals as designated. Always refer to the product's wiring diagram and datasheet for precise guidance.

Q: What protections are offered by this BMS circuit board?

A: This BMS provides comprehensive safety features, including overcharge (typically 3.65V/cell), over-discharge (usually 2.5V/cell), short circuit, temperature (with sensor interface), and active/passive balancing to maintain optimal cell voltages. These prevent battery damage and ensure safe, reliable operation.

Q: When should I use the active balancing function on this BMS?

A: Active balancing is beneficial whenever your battery pack frequently cycles or when cells become imbalanced over time. It redistributes charge among cells, improving pack performance and longevity. The BMS can automatically manage balancing during charge and discharge cycles as needed.

Q: Where can I monitor or configure the board's performance settings?

A: Some BMS models feature UART or RS485 communication interfaces, allowing you to monitor voltage, temperature, and balance status via compatible software or monitoring systems. Check your specific model for available communication ports and recommended software tools.

Q: What is the process for ensuring safe battery installation using this BMS?

A: Begin by verifying all cell voltages are within the recommended range. Connect the cells in series, attach the BMS as per wiring instructions, and secure all terminals. Test the assembled unit before use, verifying via E-Test or a multimeter to confirm correct operation. Follow guidelines on temperature and storage for consistent safety.

Q: How does the temperature sensor contribute to safety and performance?

A: The integrated temperature sensor monitors cell temperature, enabling the BMS to disconnect the pack if temperatures exceed safe operating limits (-20C to 60C). This prevents overheating, enhances longevity, and provides a critical safety layer during usage or charging.

Q: What are the key benefits of using this BMS for my LiFePO4 battery applications?

A: Using this BMS maximizes your battery's cycle life, improves pack safety, and delivers consistently balanced cell voltages. Its robust design, stringent quality control (100% E-Test), and compliance with international safety standards make it ideal for demanding applications like e-bikes and solar storage systems.

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