Descriptions :

4S 300A DALY Smart BMS – LiFePO4 with Bluetooth & Buzzer
The DALY 4S 300A Smart BMS is a heavy-duty Battery Management System engineered for 4-cell LiFePO4 battery packs. Compact yet powerful, it delivers exceptional performance and safety features:

• 300A Continuous Current – Handles high-power applications with ease.

• Bluetooth Monitoring – View real-time battery data and system status via mobile app.

• Built-in Buzzer Alarm – Instant fault alerts for enhanced safety.

• Full Protection Suite – Over-voltage, under-voltage, over-current, short circuit, and temperature protection.

• Intelligent Cell Balancing – Maintains uniform charge levels for optimal battery health.

Perfect for high-drain 12V LiFePO4 systems in marine, RV, solar, and powerwall setups.