We can see how circuits work, and represent them with some simple diagrams ... you can even put in a switch that can temporarily break the circuit. All circuits need a power source to work.

You can put all kinds of other components in the circuit, to be powered by the cell. Like a motor. Or you can even put in a switch ... power small devices such as a calculator. This circuit ...

Below you can see its functional block diagram taken from the official datasheet. As a final step, here is a practical example of an integrated power switch circuit that is enough to quench the thirst ...

To snub the switch, you can choose the capacitance that causes the 2-W resistor to dissipate half of its power rating (i.e., 1 W): All approaches to snubber-circuit implementation rely on measurement.