Answer
Aug 20, 2025 - 09:35 AM
The letters on a battery typically indicate its size and type. For example, AA, AAA, C, and D refer to the battery's physical dimensions and shape, while other designations like CR2032 or LR44 indicate specific types, often used for button or coin cell batteries. Additionally, letters can also denote the battery's chemistry, such as "NiMH" for nickel-metal hydride or "Li-ion" for lithium-ion.
