What unit is battery capacity typically measured in?

Battery capacity is typically measured in amp-hours (Ah), which quantifies the amount of electric charge a battery can deliver over a specified period of time. Essentially, one amp-hour indicates that a battery can provide a continuous flow of one ampere for one hour before it is fully discharged. This measurement is crucial when assessing how long a battery can power a device under specific load conditions.

The other units listed do not represent battery capacity: volts measure the electric potential, amperes measure the rate of flow of electric current, and ohms measure electrical resistance. Thus, amp-hours is the appropriate and relevant unit for conveying how much energy a battery can store and deliver during its operation, making it the correct choice in this context.