13S 40A JBD Li-ion Smart BMS (With Balance, Protection, and Communication)

Product Description:

The 13S 40A JBD Li-ion Smart BMS is a highly reliable and configurable Battery Management System designed for 48V lithium-ion battery packs (13 cells in series). This smart BMS offers advanced protection features, passive cell balancing, and supports multiple communication interfaces such as UART, RS485, and Bluetooth (via external module). Ideal for medium-power applications requiring intelligent monitoring and safety, including electric mobility, solar energy systems, and DIY battery packs.

Key Features:

• Supports 13S (48V nominal) Li-ion battery configuration

• 40A continuous discharge current

• Smart BMS with UART, RS485, and optional Bluetooth communication

• Protection against overcharge, over-discharge, overcurrent, short circuit, and overheating

• Passive cell balancing for improved battery health and cycle life

• Supports temperature monitoring via NTC sensors

• Real-time data monitoring and configuration via PC software or Android app

• Data logging and calibration through built-in EEPROM

• Optional separate charge/discharge port setup

Technical Specifications:

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

• Series Configuration: 13S

• Nominal 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: Yes (software configurable)

• Short Circuit Protection: Yes

• Temperature Protection: Yes (with NTC sensor)

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

• Software Support:

  • PC software via USB-to-UART adapter

  • Android mobile app (Bluetooth module required)

Applications:

• Electric bikes, scooters, and skateboards

• Solar and off-grid energy storage systems

• DIY 48V lithium battery projects

• Portable power stations and UPS systems

• Battery-powered tools and devices