DALY LFP 8S 80A 3.6V BMS, Lithium Battery

The DALY LFP 8S 80A 3.6V BMS is a Battery Management System (BMS) designed for managing 8-cell lithium iron phosphate (LiFePO4) battery packs. Here’s an overview of its features and specifications:

Key Features and Specifications:

1. Battery Configuration:
   • 8S Configuration: The BMS is designed for an 8-series lithium iron phosphate (LiFePO4) battery pack, meaning it supports 8 individual cells connected in series.
   • 3.6V Nominal Voltage: Each LiFePO4 cell operates at a nominal voltage of 3.6V, which gives the battery pack a nominal total voltage of 28.8V (3.6V x 8 cells). The fully charged voltage is typically 29.2V (3.65V per cell), and the cut-off voltage is around 24V (3.0V per cell).
2. Current Rating:
   • 80A Continuous Current: The BMS can handle 80A of continuous discharge current, making it suitable for higher-power applications compared to the 60A version. This means it can support larger motors or power loads without overheating or triggering protection features.
   • Peak Current: The BMS can handle higher surge currents for short periods, typically up to 160A (double the continuous rating), though exact values can depend on the specific model.
3. Protection Features: The DALY LFP BMS includes multiple layers of protection to ensure safe operation of the lithium battery pack:
   • Overcharge Protection: Protects the pack from charging beyond the maximum voltage, which could lead to cell damage. The overcharge limit is typically 3.65V per cell.
   • Overdischarge Protection: Prevents deep discharge of the cells, which can damage them. The BMS will disconnect the load if the voltage of any cell drops too low, typically below 2.5V to 2.8V per cell.
   • Overcurrent Protection: Disconnects the load if the discharge current exceeds the rated limit, preventing excessive current draw that could lead to overheating or battery damage.
   • Short-circuit Protection: The BMS will disconnect the battery if a short circuit is detected, protecting both the cells and the circuit from damage.
   • Temperature Protection: Monitors the battery temperature and disconnects the system if temperatures rise beyond safe levels to prevent overheating or thermal runaway.
4. Cell Balancing:
   • Active Cell Balancing: The BMS ensures that all cells in the battery pack remain balanced by keeping their voltages equal. Balancing is crucial for maintaining the overall health of the battery pack, preventing individual cells from being overcharged or overdischarged, which can shorten the lifespan and performance of the pack.
5. Communication:
   • CAN Bus or UART Communication: Depending on the model, the DALY LFP 8S 80A BMS may include a CAN Bus or UART communication interface. This allows for data transmission between the BMS and other devices such as battery monitoring systems, energy management systems, or external controllers. This feature is useful for monitoring state-of-charge (SOC), voltage, current, and temperature data remotely.
   • State-of-Charge (SOC) Monitoring: Many versions of the BMS feature built-in SOC tracking to provide real-time information about the battery’s charge status.
6. Applications: The DALY LFP 8S 80A BMS is suitable for various high-power applications, such as:
   • Electric Vehicles (EVs): It’s ideal for electric bikes, scooters, and small electric cars that require a higher current rating.
   • Energy Storage Systems (ESS): Used in off-grid solar energy storage systems or backup power applications where higher capacity and power are required.
   • Portable Power Stations: Can be used in solar-powered portable generators, power banks, or other large battery storage solutions.
   • Marine and RV Applications: For applications requiring reliable power sources, such as electric boats, RVs, and off-grid living.

Summary:

The DALY LFP 8S 80A 3.6V BMS is a high-performance battery management system for 8-cell LiFePO4 battery packs, offering protection features like overcharge, overdischarge, overcurrent, short-circuit, and temperature protection. It supports continuous discharge currents of up to 80A, making it suitable for higher-power applications. It also provides cell balancing to ensure the health of each cell in the pack and offers communication features for monitoring and integration with other systems. This makes it a versatile solution for electric vehicles, energy storage systems, and portable power stations.