20S-50A LiFePO₄ (LFP) BMS — DALY Model

Overview
The DALY 20S-50A BMS is designed for 20-series LiFePO₄ battery packs with a nominal voltage of 64V. It supports continuous discharge currents up to 50A and includes comprehensive protection, passive cell balancing, and optional smart communication features for safe battery operation.

Specifications

• Cell Configuration: 20S (20 cells in series)

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 64V (3.2V × 20)

• 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

• Individual cell voltage monitoring and balancing

• Automatic passive cell balancing during charging

• Full safety protections for voltage, current, and temperature

• Optional Bluetooth app support for remote monitoring (model dependent)

• Durable design suited for mid-power battery systems

Applications

• 64V nominal LiFePO₄ battery packs

• Electric bikes, scooters, and light electric vehicles

• Solar and off-grid energy storage solutions

• Backup power supplies and portable battery packs

• DIY 20S LiFePO₄ battery projects

Important Notes

• Designed exclusively for LiFePO₄ (3.2V per cell) chemistry

• Proper wiring of balance leads and main terminals is essential

• Charger and load currents should stay within 50A continuous rating

• Bluetooth and smart features depend on specific BMS model

• Adequate cooling recommended under continuous high loads