SoC represents the percentage of the battery’s current stored energy relative to its maximum available capacity, usually expressed as 0% (fully discharged) to 100% (fully charged). SoC is a key indicator for measuring the remaining energy of the battery, similar to the fuel gauge in a car. In the battery industry, SoC is a core parameter in the Battery Management System (BMS), used for guiding energy scheduling, charge-discharge control, and system safety protection. Accurate SoC estimation is crucial for extending battery life, improving system efficiency, and ensuring operational safety, especially in applications such as electric vehicles and energy storage systems.
