SOC (State of Charge)
The current charge level of battery storage in percent; daily cycles typically use a 10–90% range.
SOC (State of Charge) indicates the current charge level of the battery storage as a percentage of its nominal capacity. For daily cycles, manufacturers generally recommend a 10–90% range — this is the usable capacity, ~80% of the nominal value.
Deeper discharge (a lower bottom SOC) makes more energy available per cycle but accelerates cell aging. The optimal range depends on the cell chemistry and the application; for industrial LFP, 10–90% is a good compromise between service life and utilization.
Related sizing concepts are in the knowledge base.
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