DALY LiFePo4 4S 12V 40A Waterproof Battery Management System – BMS Protection Board

• Battery Configuration: 4S (4 cells in series)
• Nominal Voltage: 12.8V (3.2V per cell)
• Fully Charged Voltage: 14.6V (3.65V per cell)
• Continuous Discharge Current: 40A
• Peak Discharge Current: Typically up to 80A (brief bursts)
• Overvoltage Protection: Typically 3.65V per cell
• Undervoltage Protection: Typically 2.5V to 2.8V per cell
• Operating Temperature: Typically -20°C to 60°C (varies by model)
• Temperature Protection: Typically 60°C to 70°C
• Waterproof Rating: IP67 (or equivalent waterproof standard)
• Cell Balancing: Passive (or active, depending on the model)
• Short Circuit Protection: Yes
• Charger Current: Typically up to 20A (depending on design)

Applications:

1. Electric Vehicles (EVs):
   • The DALY 4S 40A BMS is ideal for electric bikes (e-bikes), electric scooters, and other low-to-medium-power electric vehicles. The 40A discharge current ensures the battery pack can meet the power demands of these vehicles.
2. Solar Energy Storage Systems:
   • For solar power storage, the DALY BMS ensures that the LiFePO4 battery pack is safely charged and discharged, maintaining optimal performance and longevity for off-grid or grid-tied solar systems.
3. Off-Grid and Portable Power Systems:
   • The waterproof design makes this BMS suitable for off-grid power stations, remote areas, and portable energy solutions where moisture, rain, and rugged environments are typical.
4. Power Tools:
   • Cordless power tools, such as drills, saws, and other high-drain tools, benefit from the 40A BMS because it can provide sufficient current while also protecting against overcurrent, overvoltage, and undervoltage conditions.
5. Marine and RV Applications:
   • This BMS is suitable for marine battery packs and RV battery systems where protection against harsh conditions and water ingress is crucial for reliable operation and battery health.