Daly 4S 30A Li-Ion Battery BMS With Balancing And Waterproof

The Daly 4S 30A Li-Ion Battery BMS (Battery Management System) with Balancing and Waterproof features is an advanced circuit designed for managing the charging and discharging process of lithium-ion batteries. Here’s a detailed description of its key features:

1. 4S Configuration:

• The system is designed for a 4S (4-series) configuration, meaning it manages 4 cells connected in series to form a battery pack, resulting in a nominal voltage of 14.8V (3.7V per cell) and a fully charged voltage of 16.8V (4.2V per cell).

2. 30A Continuous Discharge Current:

• It can support a continuous discharge current of 30A, suitable for applications requiring moderate power, such as electric bicycles, scooters, or small electric vehicles.

3. Battery Balancing:

• The BMS includes an active/passive balancing function that ensures each cell in the pack maintains an equal charge level. This helps to extend the lifespan of the battery, preventing overcharging or deep discharging of individual cells, and ensures the safety of the system.

4. Waterproof Design:

• The BMS is housed in a waterproof enclosure, making it suitable for use in environments where the battery pack might be exposed to moisture or light rain. This feature increases the durability and safety of the battery management system.

5. Overcharge & Overdischarge Protection:

• The system protects the battery pack from overcharging (when voltage exceeds safe levels) and overdischarge (when voltage drops too low), which could otherwise damage the cells or reduce the battery’s lifespan.

6. Overcurrent Protection:

• It includes overcurrent protection, ensuring that the system will automatically shut off if the current exceeds the rated limit (30A), preventing the risk of thermal damage or fire.

7. Short Circuit Protection:

• The BMS is designed to detect and prevent short circuits, helping protect the entire battery pack from sudden, dangerous electrical faults.

8. Temperature Protection:

• It can monitor the battery temperature, preventing overheating by limiting current or shutting down if the temperature exceeds safe levels, reducing the risk of thermal runaway.

9. Low Voltage Protection:

• The BMS will disconnect the load or charging current if any cell’s voltage drops below a certain threshold, preserving the battery’s health.

10. Communication Function:

• Some versions may support communication protocols (like UART or CAN), allowing users to monitor the system, view battery status, and make adjustments remotely.

11. Small and Compact:

• The design of the BMS is compact, making it easy to integrate into battery packs for small electric devices or vehicles without taking up excessive space.

Applications:

• This BMS is ideal for applications such as e-bikes, electric scooters, solar energy storage systems, and other small devices that use lithium-ion batteries. Its protection features ensure that the battery pack operates safely and efficiently.

Summary:

The Daly 4S 30A Li-Ion Battery BMS with balancing and waterproof capabilities is a reliable, durable, and safe option for managing a 4-cell lithium-ion battery pack. Its advanced protection features (overcharge, overdischarge, overcurrent, short circuit, temperature monitoring) make it an excellent choice for a variety of battery-powered devices.