PerformanceUp to date · Jan 15, 2026

State of Charge (SoC)

The current charge level of a battery expressed as a percentage of its total capacity, similar to a fuel gauge. 100% SoC means fully charged; 0% means fully discharged.

Related Terms

Depth of Discharge (DoD)

The percentage of a battery's total capacity that is used during a discharge cycle. Most modern batteries allow 90-100% DoD.

Battery Storage

A system that stores excess solar energy for use when the sun isn't shining, providing backup power during outages.

← Back to full glossary