JBD 3S-4S 12V 50A-200A Smart BMS for LiFePO4 & NMC Li-ion (Lead Acid Replacement)

$23.80 USD
$34.80 USD
Bespaar $11.00 USD
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Model

Product Description

JBD SP04S075 is a high-current Smart Battery Management System designed for 3S-4S LiFePO4 battery packs. It supports 100A–200A continuous charge and discharge current, providing reliable battery protection and intelligent management for high-power lithium battery applications.

The SP04S075 adopts advanced battery monitoring technology with TI front-end acquisition IC and MCU control architecture. Key parameters can be adjusted through JBD PC software according to different battery requirements, making it suitable for customized battery pack solutions.

Key Features

  • Supports 3S-4S LiFePO4/NMC battery packs
  • 100A–200A continuous current options
  • Charge and discharge common port design
  • UART,RS485 and CAN communication
  • Support for series connection
  • 1 built-in NTC + 2 external NTC temperature monitoring
  • Passive cell balancing function
  • Adjustable protection parameters through PC software
  • Optional Bluetooth module, switch function, and battery pack series connection function

Protection Functions

SP04S075 provides multiple protection features to improve battery safety and reliability:

  • Cell overcharge protection
  • Cell over-discharge protection
  • Charge over-current protection
  • Discharge over-current protection
  • Short-circuit protection
  • High and low temperature protection
  • Cell voltage monitoring and balancing

The BMS automatically protects the battery pack by controlling the charge and discharge MOSFETs when abnormal conditions occur.

Communication & Monitoring

The SP04S075 supports intelligent communication options for battery monitoring and parameter configuration:

  • UART communication for PC monitoring
  • Optional RS485 communication
  • Optional CAN communication
  • Optional Bluetooth monitoring

Users can read battery data and adjust BMS parameters through JBD configuration software.

Applications

Suitable for:

  • Electric motorcycles
  • E-bike battery packs
  • Low-speed electric vehicles
  • DIY lithium battery projects
  • Lead-acid replacement applications
  • High-current LiFePO4 battery packs
Frequently Asked Questions
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Q1: How do I choose the right BMS model?
A: Please confirm your battery type, series number, continuous current,  communication requirements, and application scenario before ordering.Not sure which model to choose? Please contact Cara for professional model selection support.
Q2: What battery types are supported?
A: Please confirm your battery type, series number, continuous current,  communication requirements, and application scenario before ordering.Not sure which model to choose? Please contact Cara for professional model selection support.
Q3: What does “S” mean in BMS specifications?
A: “S” means the number of cells connected in series. For example, 8S means 8 cells in series.
Q4: What current rating should I choose?
A: The BMS current should be selected according to the battery pack load current and application. It is recommended to choose a BMS with enough current margin.
Q5: Does the BMS support communication functions?
A: Some smart BMS models support UART, RS485, CAN, Bluetooth, or WiFi communication. Hardware BMS models may not support communication.
Q6: Can you provide wiring diagrams and datasheets?
A: Yes. We can provide datasheets, wiring diagrams, and technical support for model selection and installation. If you are not sure which model to choose, please contact Cara for support.