13S 40A JBD Li-ion BMS (With Smart Communication & Protection)

Product Description:

The 13S 40A JBD Li-ion BMS is an advanced Battery Management System designed for 48V lithium-ion battery packs (13 cells in series). Known for its high reliability and intelligent features, this BMS supports smart communication protocols (such as UART, RS485, or Bluetooth via external module), along with standard protection and cell balancing. It is suitable for a wide range of applications including electric vehicles, solar energy storage systems, and other lithium battery-powered systems.

Key Features:

• 13S configuration (48V nominal lithium-ion pack)

• 40A continuous discharge current

• Smart BMS with UART/RS485/optional Bluetooth communication

• Compatible with lithium-ion (3.7V nominal per cell) chemistry

• Advanced protection: overcharge, over-discharge, overcurrent, short circuit, temperature

• Cell balancing for optimal performance

• Support for PC software and mobile app (via external Bluetooth module)

• Built-in EEPROM for data logging and configuration

• Separate charge and discharge port support (if specified)

Technical Specifications:

• Battery Type: Li-ion (3.7V nominal per cell)

• Series Configuration: 13S

• Nominal Battery Pack Voltage: 48V

• Maximum Charge Voltage: 54.6V

• Continuous Discharge Current: 40A

• Balance Current: ~30-60mA

• Overcharge Protection Voltage: ~4.20V ± 0.025V per cell

• Overdischarge Protection Voltage: ~2.8V ± 0.08V per cell

• Overcurrent Protection: Configurable

• Short Circuit Protection: Yes

• Temperature Sensors: Supported (NTC)

• Communication Interface: UART / RS485 / Bluetooth (external module)

• Software: PC interface via USB-to-UART adapter, Android app (Bluetooth)

Applications:

• Electric bikes and scooters

• Solar and off-grid battery storage systems

• Portable power systems

• DIY battery pack projects

• Backup power supplies and UPS systems