Which type of current is produced by batteries?

Batteries produce Direct Current (DC) because they generate a unidirectional flow of electric charge. In a DC circuit, the electric current flows consistently in one direction, which is characteristic of how batteries operate. The chemical reactions occurring within a battery create a potential difference, causing electrons to move from the negative terminal towards the positive terminal, thus resulting in a steady flow of current.

In contrast, Alternating Current (AC) reverses direction periodically, which is not the case with battery power. Pulsating Current (PC) often refers to a form of DC that varies in magnitude but not in direction, which does not apply to the constant voltage produced by a typical battery. Variable Current (VC) suggests a change in flow that can occur in both AC and DC, but again, this does not accurately describe the steady and directed nature of current from a battery. Thus, Direct Current (DC) is the correct classification for the type of current produced by batteries.