15S-50A LiFePO₄ (LFP) BMS — JBD Model

Overview
The JBD 15S-50A BMS is built for 15-cell LiFePO₄ battery packs with a nominal voltage of 48V. It supports up to 50A of continuous discharge current and provides intelligent protection, cell balancing, and optional smart communication features to ensure battery health and safety.

Specifications

• Cell Configuration: 15S (15 cells in series)

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 48V (3.2V × 15)

• Maximum Continuous Current: 50A

• Peak Current: 70A to 90A (short burst)

• Balancing Type: Passive balancing

• Balance Current: Approx. 30mA to 100mA

• Protection Features:

  • Over-voltage protection

  • Under-voltage protection

  • Over-current protection

  • Short-circuit protection

  • Over-temperature protection

  • Under-temperature protection

• Communication (depends on model):

  • Bluetooth

  • UART / RS485 / CAN

• Operating Temperature: -20°C to +60°C

Features

• Cell-level voltage monitoring and balancing

• Automatic passive balancing during charge cycles

• Full protection for current, voltage, and temperature events

• Remote configuration and monitoring via Bluetooth (optional)

• Reliable, compact design for medium-power battery packs

Applications

• 48V LiFePO₄ battery packs

• Electric bikes and scooters

• Energy storage systems (solar/off-grid)

• Portable power stations and inverters

• DIY and commercial battery projects

Important Notes

• Designed for use with LiFePO₄ batteries only (3.2V per cell)

• Ensure proper wiring of balance leads and power connections

• Charger and load must match the 50A continuous rating

• Smart communication features vary by BMS version

• Adequate ventilation recommended for sustained high loads