ARRL Technician Practice Exam 2025 - Free Technician License Practice Questions and Study Guide.

Carbon-zinc batteries are commonly classified as non-rechargeable batteries. They are designed for single-use applications and lack the necessary chemistry to efficiently handle the charging process without suffering from degradation in performance. When these batteries are depleted, they cannot be restored to their original state, which makes them unsuitable for applications requiring recharging.

In contrast, lithium-ion, nickel-cadmium, and lead-acid batteries are all specifically designed to be rechargeable. Each of these battery types utilizes different chemistries and mechanisms that allow for the reversal of chemical reactions through the application of an electric charge, enabling them to be used multiple times. Thus, identifying carbon-zinc as the non-rechargeable option emphasizes the different characteristics and purposes of various battery technologies.