TDT LiFePO4 4S 20A BMS 12.8V LiFePO4 With Balance

TDT LiFePO4 4S 20A BMS 12.8V with Balance – Battery Management System

Ensure the safety, performance, and longevity of your 4S LiFePO4 battery packs with the TDT 4S 20A BMS (Battery Management System). Designed for 12.8V LiFePO4 (Lithium Iron Phosphate) batteries, this smart BMS supports a 20A continuous discharge current and includes active balancing for optimal cell health and charging efficiency.

✅ Key Features:

• Compatible with 4S LiFePO4 Packs (12.8V nominal)

• 20A Continuous Discharge Current

• Overcharge, Over-discharge, Overcurrent, and Short Circuit Protection

• Temperature Protection (if thermistor supported)

• Cell Balancing Function to equalize voltage across cells, improving performance and lifespan

• Compact and lightweight – easy to integrate into custom battery packs

🔧 Specifications:

• Battery Type: LiFePO4 (Lithium Iron Phosphate)

• Series: 4S (4 cells in series)

• Nominal Voltage: 12.8V

• Continuous Discharge Current: 20A

• Charging Voltage: 14.6V max

• Balance Function: Yes (typically starts around 3.6V per cell)

• Protection Features:

  • Overcharge Protection

  • Over-discharge Protection

  • Overcurrent Protection

  • Short Circuit Protection

  • Balancing Protection

⚡ Applications:

• DIY LiFePO4 battery packs

• Solar energy storage systems

• E-bikes, e-scooters

• Portable power stations

• Marine and RV battery systems

This BMS is ideal for anyone building or maintaining a reliable and efficient 4S LiFePO4 battery system. Its integrated balancing and protective functions help extend the life of your battery and maintain safe operation under various conditions.