What unit of measure is used to indicate a battery cycle?

The appropriate unit of measure used to indicate a battery cycle is the ampere-hour. This unit quantifies the total electric charge a battery can deliver over time. Specifically, one ampere-hour represents the ability to provide one ampere of current for one hour. Battery cycles often refer to the charging and discharging processes that a battery undergoes, and the capacity of a battery is typically expressed in ampere-hours, reflecting how long it can power a device at a specified current. Thus, for understanding battery performance and longevity, ampere-hours are a critical measure helping to assess how many cycles a battery can effectively fulfill its capacity before its performance declines.