What type of current is typically stored in a 9-volt battery?

A 9-volt battery typically stores direct current (DC). This is because batteries, including a 9-volt battery, produce a steady flow of electricity in one direction, which is characteristic of direct current. DC is used in many applications, such as powering small electronic devices, where consistent energy flow is essential for operation.

Alternating current (AC) is generated for household power supplies and changes direction periodically; it is not stored in batteries. The terms "voltage current" and "charged current" are not standard terminologies in electrical engineering; hence they do not accurately describe the nature of the current stored in a battery. Therefore, the correct classification of the current type in a 9-volt battery is direct current.