23S-40A LiFePO₄ (LFP) BMS — DALY Model

Overview
The DALY 23S-40A BMS is designed for 23-cell LiFePO₄ battery packs in series. It supports up to 40A of continuous current and provides core protections and balancing to ensure battery safety, efficiency, and long-term reliability.

Specifications

• Cell Configuration: 23S (23 cells in series)

• Battery Chemistry: LiFePO₄ (LFP)

• Nominal Voltage: 73.6V (3.2V × 23)

• Maximum Continuous Current: 40A

• Peak Current: Typically 60A to 80A for short durations

• 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 Options (model dependent):

  • Bluetooth

  • UART

  • CAN

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

Features

• Monitors each cell’s voltage in real time

• Automatic passive cell balancing during charging

• Built-in protections for voltage, current, and temperature

• Optional remote monitoring via DALY Smart BMS app

• Reliable and efficient DALY hardware design

Applications

• 72V nominal LiFePO₄ battery packs

• Electric vehicles (scooters, motorcycles, light EVs)

• High-voltage solar battery storage systems

• Portable or backup power systems

• DIY 23S battery builds requiring safe management

Important Notes

• Only compatible with LiFePO₄ battery chemistry

• All balance leads and main terminals must be connected correctly

• Ensure charger and load are within the 40A continuous current rating

• Bluetooth and other features require matching DALY model with interface support

• Cooling or ventilation may be necessary under continuous high load