Primary Cells

Primary batteries are disposable batteries that cannot be recharged. Primary batteries are usually made of a metal that can be easily oxidized, such as zinc or lithium. The oxidation of the metal creates an electrical current that powers the battery. Primary batteries are used in a variety of devices, including flashlights, remote controls, and toys. They are also used in some medical devices, such as heart monitors.

Primary batteries have a number of advantages over rechargeable batteries. They are typically less expensive, and they do not require a charger. However, they also have a number of disadvantages. They have a shorter lifespan than rechargeable batteries, and they cannot be used again once they are depleted.