DALY NMC 7S 60A (498b) Waterproof Battery Management System-BMS Protection Board

The DALY NMC 7S 60A (498b) Waterproof Battery Management System (BMS) Protection Board is a high-performance protection board designed specifically for 7-series lithium-ion battery packs using NMC (Nickel Manganese Cobalt) chemistry. This BMS is engineered to handle higher power demands, making it ideal for applications that require efficient and reliable battery management. Below is a detailed breakdown of its key features and functionalities.

Key Features:

1. 7S Configuration:
   • The 7S configuration refers to 7 cells connected in series.
   • This setup results in a voltage range of 21V to 29.4V, where each cell operates between 3.0V (discharge cutoff) and 4.2V (fully charged).
   • Ideal for applications that require a 7S pack, such as electric bikes (eBikes), electric scooters, and energy storage systems.
2. 60A Continuous Discharge Current:
   • This BMS is capable of handling up to 60A of continuous current, making it suitable for high-power applications that require larger currents for motor operation or other high-demand systems.
   • It is designed to prevent overcurrent conditions, protecting both the battery and the device by disconnecting the load or charging system if the current exceeds safe limits.
3. Waterproof Design (IP65 Rating):
   • The BMS features IP65 waterproof protection, meaning it is resistant to dust and water splashes, making it suitable for outdoor use in various weather conditions.
   • This is particularly important for electric vehicles, solar systems, or portable power storage, where the battery may be exposed to moisture or environmental conditions.
4. Advanced Protection Features:
   • Overcharge Protection: Prevents the battery pack from being charged beyond the safe voltage (typically 4.2V per cell), which could damage the cells or lead to dangerous situations like overheating or fire.
   • Over-discharge Protection: Disconnects the battery pack when the voltage drops below a safe threshold (typically 3.0V per cell), preventing deep discharge that could permanently damage the battery and reduce capacity.
   • Overcurrent Protection: Monitors the current flowing from the battery and prevents damage by cutting off the current when it exceeds the set limits (60A in this case).
5. Cell Balancing:
   • The BMS includes passive cell balancing, which ensures that all cells in the battery pack are evenly charged. This is crucial for maintaining the battery’s performance, capacity, and lifespan, as it prevents overcharging or undercharging individual cells.
6. State-of-Charge (SOC) Monitoring:
   • The BMS may feature LED indicators or external communication ports (like UART or CAN bus) to monitor and report the state of charge (SOC), voltage, and temperature of the battery pack.
   • This allows for real-time monitoring of the battery’s health and performance, which is particularly useful in high-power applications where battery status needs to be constantly observed.
7. 498b Identifier:
   • The 498b is likely a model or version identifier, which could refer to specific firmware or feature configurations for this particular DALY BMS, designed to meet specific use-case requirements.

Applications:

• Electric Vehicles (EVs): The 60A continuous discharge current makes this BMS perfect for high-power electric vehicles such as electric cars, e-scooters, and e-motorcycles.
• Energy Storage Systems: It can be used for solar energy storage or off-grid power systems where high current demands are needed for charging and discharging.
• Electric Bikes (eBikes): Suitable for high-performance eBikes that require more power for motors and longer battery life.
• Portable Power Systems: Ideal for portable power stations where high power output is required to support various devices, especially in off-grid or outdoor environments.

Summary:

The DALY NMC 7S 60A (498b) Waterproof Battery Management System is an advanced BMS designed to provide high current protection for 7S lithium-ion battery packs. With its 60A continuous discharge capacity, waterproof design, and advanced protection features such as overcharge, over-discharge, overcurrent, short-circuit, and over-temperature protection, it is built to handle demanding applications.

Additionally, passive cell balancing ensures the battery pack remains balanced, maximizing its lifespan and performance. Its suitability for electric vehicles, solar systems, and high-power applications makes it an ideal choice for anyone needing a reliable and efficient BMS for a 7S NMC battery.