DALY NMC 7S 30A (10e0) Waterproof Battery Management System-BMS Protection Board

The DALY NMC 7S 30A (10e0) Waterproof Battery Management System (BMS) Protection Board is a protective device specifically designed for lithium-ion battery packs, particularly those using NMC (Nickel Manganese Cobalt) chemistry. This BMS ensures safe operation, efficiency, and longevity of battery packs by providing key protection and management features. Below is a detailed description of the DALY NMC 7S 30A (10e0) BMS:

Key Features:

1. 7S Configuration:
   • The BMS is designed for 7-series (7S) battery packs, meaning it supports a total of 7 cells connected in series.
   • For a 7S configuration, the voltage range typically spans from 21V (3.0V per cell) to 29.4V (4.2V per cell when fully charged).
2. 20A Continuous Current:
   • The BMS can handle a continuous discharge current of 30A, which makes it suitable for medium-power applications such as electric vehicles (EVs), electric bicycles (eBikes), and energy storage systems.
   • It also provides protection against overcurrent situations, preventing excessive current flow that can harm the battery or connected devices.
3. Waterproof (IP65 Rating):
   • This BMS comes with a waterproof design (rated IP65), ensuring protection against dust and water splashes. This is particularly useful in outdoor or all-weather environments like electric scooters, boats, or off-grid solar systems.
4. Protection Mechanisms:
   • Overcharge Protection: Ensures that the battery does not exceed the maximum voltage (typically 4.2V per cell), preventing potential overheating, cell damage, or fire hazards.
   • Over-discharge Protection: Prevents the battery from dropping below a safe voltage (typically 3.0V per cell), avoiding capacity loss and irreversible damage to the cells.
5. Cell Balancing:
   • Cell Balancing: This BMS is equipped with a passive balancing system that ensures all cells in the pack are charged equally. By maintaining uniform charge levels, it helps prevent overcharging of individual cells, which can reduce the overall lifespan of the pack.
6. State-of-Charge (SOC) Monitoring:
   • The BMS can monitor and report on the battery’s state-of-charge (SOC) to keep users informed of remaining battery life, often using LED indicators or external communication systems like UART for more detailed information.
7. 10e0 Identifier:
   • The 10e0 designation likely refers to a specific model or firmware version of the DALY BMS. It could indicate certain configurations or features unique to this version.
8. Communication Ports:
   • Some versions of the DALY BMS come with ports for external communication, such as UART or CAN bus, enabling remote monitoring, battery diagnostics, and real-time adjustments. However, the availability of these ports depends on the specific version.

Applications:

• Electric Bicycles (eBikes): Ensures safe operation while delivering adequate power for the motor.
• Electric Scooters: Ideal for small to medium electric scooters with a 7S battery pack configuration.
• Energy Storage Systems: Suitable for solar and off-grid energy storage where reliability is critical.
• Electric Vehicles (EVs): Provides protection and efficient battery management for electric cars and other electric vehicles.
• Portable Power Stations: Used in portable energy systems to safely manage charging and discharging cycles.

Conclusion:

The DALY NMC 7S 30A (10e0) Waterproof Battery Management System is an essential component for protecting 7S lithium-ion battery packs. With its 30A current capacity, waterproof construction, and comprehensive battery protection features (such as overcharge, over-discharge, overcurrent, short-circuit, and over-temperature protections), it ensures the longevity, safety, and performance of the battery pack. It is particularly useful for applications that require both outdoor and high-performance capabilities.