JBD 3S-4S 12V 20A-80A Smart BMS for LiFePO4 & NMC Li-ion with Optional UART, RS485 & CAN Communication

$15.80 USD
$22.60 USD
$6.80 USD 혜택
결제 시 배송비 를 계산
  • Factory Direct

  • Tech Support

  • Worldwide Shipping

  • Secure payments

Model

Product Description

JBD-DH04SA01 is a compact Smart Battery Management System designed for 3S–4S LiFePO4/NMC battery packs. It provides reliable battery protection and monitoring with flexible parameter settings through JBD PC software.

This BMS supports 20A to 120A continuous current options and adopts a common port design for charging and discharging, making it suitable for various lithium battery applications.

Key Features

  • Supports 3–4 series LiFePO4 battery packs
  • Continuous current options: 20A / 30A / 40A / 50A / 60A / 80A / 100A / 120A
  • Common port design (same port for charge and discharge)
  • Multiple protection functions:
    • Over charge protection
    • Over discharge protection
    • Charge over current protection
    • Discharge over current protection
    • Short circuit protection
    • Temperature protection
  • Temperature monitoring:
    • 1 internal NTC
    • 2 external NTC
  • UART communication standard
  • Optional communication:
    • RS485
    • CAN
    • Bluetooth module
  • Adjustable parameters through JBD PC software
  • Compact PCB design for easy installation

Applications

  • LiFePO4 battery packs
  • DIY battery projects
  • Solar energy storage systems
  • Portable power stations
  • Electric vehicles and mobility devices
  • Battery replacement applications

Technical Specifications

Item Specification
Battery Type LiFePO4/NMC
Series Configuration 3S–4S
Continuous Current 20A–120A
Balance Current 80–140mA
Communication UART (Standard), RS485/CAN Optional
Temperature Detection 1 Internal + 2 External NTC
Working Temperature -20℃ to 75℃
PCB Size 122 × 62 × 14 mm
Frequently Asked Questions
Our customer support is available Monday to Sunday
View more
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.