State of Charge (SOC) is the remaining capacity of a battery expressed as a percentage of its full capacity, analogous to a fuel gauge. Accurate SOC estimation is essential for predicting available runtime and for managing charge and discharge limits. Data center battery monitoring systems track SOC continuously so operators know real autonomy time and can schedule energy-storage dispatch without over-discharging cells.
Category: Power Infrastructure · Subcategory: UPS & Energy Storage · Part of the AIDC Technical Terminology reference.