Technician 2022-2026T6A11

Which of the following battery chemistries is not rechargeable?

B
Answer
Electronic components and circuits
Type
A
Nickel-cadmium
B
Carbon-zinc
C
Lead-acid
D
Lithium-ion

Answer Notes

Carbon-zinc batteries, often sold as standard or 'heavy-duty' AA, AAA, C, or D cells, are primary cells. This means they are designed to be used exactly once and then discarded, as their internal chemical reaction cannot be safely or effectively reversed. In contrast, Nickel-cadmium, Lead-acid, and Lithium-ion are all secondary cells. You can pass an electrical current backward through them to reverse the chemical reaction and recharge the battery for repeated use. Attempting to recharge a carbon-zinc battery is dangerous and can cause the cell to leak corrosive battery acid or even rupture.
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Which of the following battery chemistries is rechargeable?
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What type of switch is represented by component 3 in figure T-2?