Final answer:
The larger the battery number does not necessarily mean longer usage time.
Step-by-step explanation:
The statement, 'The larger the battery number, the longer the usage' is False.
The battery number, usually referred to as the battery's voltage, does not directly determine the battery's usage time. The usage time of a battery depends on its capacity, which is measured in milliamp-hours (mAh). A higher capacity battery will provide longer usage time, regardless of the battery's voltage.
For example, a battery with a lower voltage but higher capacity may last longer than a battery with a higher voltage but lower capacity.