17S-50A LiFePO₄ (LFP) BMS — DALY Model

Overview
The DALY 17S-50A BMS is designed for 17-cell LiFePO₄ battery packs in series, supporting continuous discharge currents up to 50A. It provides essential protection, passive cell balancing, and optional smart communication features to ensure safe and efficient battery management.

Specifications

• Cell Configuration: 17S (17 cells in series)

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 54.4V (3.2V × 17)

• Maximum Continuous Current: 50A

• Peak Current: Typically 70A to 90A (short bursts)

• Balancing Type: Passive balancing

• Balance Current: Approximately 30mA to 100mA

• Protection Features:

  • Over-voltage protection

  • Under-voltage protection

  • Over-current protection

  • Short-circuit protection

  • Over-temperature protection

  • Under-temperature protection

• Communication (model dependent):

  • Bluetooth

  • UART

  • CAN

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

Features

• Real-time monitoring of individual cell voltages

• Automatic passive cell balancing during charging

• Comprehensive protection for voltage, current, and temperature

• Optional Bluetooth app support for remote monitoring

• Robust and compact design suitable for mid-to-high power applications

Applications

• 54V LiFePO₄ battery systems

• Electric scooters, bikes, and light electric vehicles

• Solar energy storage and off-grid power systems

• Backup power and portable battery packs

• DIY high-voltage battery pack projects

Important Notes

• Use exclusively with LiFePO₄ (3.2V per cell) chemistry

• Proper wiring of balance leads and power terminals is critical

• Charger and load current must not exceed 50A continuous rating

• Bluetooth and smart features depend on the specific BMS model

• Adequate heat dissipation recommended for continuous high load use