How does a 1.5 volt battery compare to a 9 volt battery?

A 1.5-volt battery provides a lower voltage compared to a 9-volt battery, meaning it delivers less electrical potential energy. This difference in voltage affects the type of devices each battery can power; 1.5-volt batteries are commonly used in small electronics like remote controls and toys, while 9-volt batteries are used in devices that require higher power, such as smoke detectors and guitar pedals. Additionally, 9-volt batteries typically have a larger physical size and capacity compared to 1.5-volt batteries.