DALY NMC 7S 40A (12c0) Waterproof Battery Management System-BMS Protection Board

The DALY NMC 7S 40A (12c0) Waterproof Battery Management System (BMS) Protection Board is a high-performance battery management system designed specifically for 7-series (7S) lithium-ion battery packs using NMC (Nickel Manganese Cobalt) chemistry. This BMS offers advanced protection and management features, ensuring safe and efficient operation for various applications, including electric vehicles (EVs), energy storage systems, and more. Below is a detailed description of its key features and benefits:

Key Features:

1. 7S Configuration:
   • Designed for 7-series battery packs, meaning it manages 7 cells in series.
   • The system works within the typical voltage range of 21V to 29.4V (3.0V to 4.2V per cell).
2. 40A Continuous Current:
   • The 40A continuous discharge capacity is ideal for high-performance applications that require higher current demands.
   • This makes the BMS suitable for electric vehicles, high-power eBikes, and other heavy-load battery systems.
   • It also includes overcurrent protection to prevent excessive current from damaging the battery or the load.
3. Waterproof (IP65 Rating):
   • The BMS is designed with IP65 waterproof protection, making it suitable for use in harsh, outdoor environments where the battery pack is exposed to moisture, dust, and dirt.
   • This ensures reliable operation in various weather conditions, particularly for applications like electric scooters, solar storage, and outdoor power systems.
4. Advanced Protection Features:
   • Overcharge Protection: Protects the battery by disconnecting charging if the voltage exceeds safe levels, preventing overcharging which could cause damage to the cells or lead to fire risks.
   • Over-discharge Protection: Prevents the battery from discharging below a critical voltage (typically 3.0V per cell), which would damage the cells and reduce capacity.
   • Overcurrent Protection: Monitors the current and disconnects the system in case of excessive current flow, protecting the battery pack from damage due to overcurrent.
   • Short-circuit Protection: Cuts off power to prevent damage to the battery and associated circuitry in case of a short circuit.
   • Over-temperature Protection: Monitors the battery temperature and disables charging or discharging if temperatures exceed safe limits (typically over 60°C), protecting against overheating and potential thermal runaway.
5. Cell Balancing:
   • Equipped with passive cell balancing, this BMS ensures that all cells in the battery pack are balanced during charging. This prevents certain cells from becoming overcharged or undercharged, promoting better longevity and efficiency across the entire pack.
6. Communication and Monitoring:
   • Some versions of this BMS support communication protocols such as UART or CAN bus, enabling real-time monitoring of battery status, voltage, temperature, and other parameters. This can be useful for remote monitoring and diagnostics.
   • LED indicators may also be included to provide simple, visual status updates on the battery’s state, including charge level, faults, or protection states.
7. 12c0 Identifier:
   • The 12c0 designation refers to a specific firmware or configuration of this BMS model, indicating a customized version for certain usage patterns or features unique to this specific model.
8. Applications:
   • Electric Vehicles (EVs): With its high discharge capacity of 40A, this BMS is well-suited for higher-power applications like EVs and large eBikes.
   • Energy Storage Systems: This BMS is ideal for managing battery packs in solar energy storage systems, where higher currents are needed for charging and discharging.
   • Electric Scooters: Suitable for high-power scooters that require efficient battery management to ensure safety during high-power discharges.
   • Portable Power Systems: Can be used in portable power systems and off-grid applications where reliability and protection are critical.

Summary:

The DALY NMC 7S 40A (12c0) Waterproof Battery Management System is an advanced and highly efficient BMS designed to manage and protect a 7S lithium-ion battery pack. With its 40A continuous discharge capability, waterproof IP65 design, and essential protection features (overcharge, over-discharge, overcurrent, short-circuit, and over-temperature protection), it ensures the safety, reliability, and performance of high-power battery packs.

Its passive balancing function improves battery longevity by ensuring uniform charge levels across cells, and its communication support enables real-time monitoring and diagnostics. This BMS is ideal for use in demanding applications such as electric vehicles, solar storage, and other high-performance energy systems.