How do we measure the push of the battery?

The "push" of a battery, often referred to as its voltage or electromotive force (EMF), is measured in volts using a multimeter. This measurement indicates the potential difference between the battery's terminals and reflects the energy available to drive an electric current through a circuit. Additionally, the battery's capacity, usually measured in ampere-hours (Ah), can also provide insights into how much current a battery can deliver over a specific time period.