Deye 5kWh high-voltage (HV) battery is a lithium-ion battery, specifically a LiFePO4 (Lithium Iron Phosphate) battery, designed for energy storage in solar power systems. It typically has a nominal voltage of 51.2V and a capacity of 100Ah, resulting in a usable energy of 5.12kWh. These batteries are known for their long lifespan, high cycle life (often exceeding 6000 cycles), and safety features. Here's a more detailed breakdown: Key Features and Specifications: Battery Chemistry: LiFePO4 (Lithium Iron Phosphate). Nominal Voltage: 51.2V. Capacity: 100Ah. Nominal Energy: 5.12 kWh. Cycle Life: Typically > 6000 cycles at 25°C, 0.5C/0.5C, and 90% Depth of Discharge (DoD). Operating Temperature: Charge: 0°C to 55°C; Discharge: -20°C to 55°C. Communication: CAN2.0 and RS485. Scalability: Can be connected in parallel to increase capacity. Installation: Rack mount (3U) or floor/wall mounted. Safety Features: Over-voltage, under-voltage, over-current, short-circuit, and temperature protection, as well as an intelligent Battery Management System (BMS). Certifications: UN38.3, CE, IEC62619. Benefits of using a Deye 5kWh HV battery: Long lifespan and high cycle life: The LiFePO4 chemistry and design contribute to a long operational life, reducing the need for frequent replacements. Safety: The BMS and multiple protection features ensure safe operation and prevent damage to the battery. Efficiency: High energy density and efficient charging/discharging contribute to optimal performance. Scalability: Multiple batteries can be connected in parallel to meet larger energy storage needs. Wide operating temperature range: Suitable for various environments. Compatibility: Designed to integrate seamlessly with various inverters and solar systems. In essence, the Deye 5kWh high voltage battery is a robust, safe, and efficient energy storage solution for residential and commercial solar power systems.