What does battery capacity describe?

What does battery capacity describe?

• A. The amount of current a battery can produce for 1 hour
• B. The energy stored in watt-hours (Wh)
• C. The maximum voltage the battery can reach
• D. The total weight of the battery

Answer: (A)

Battery capacity is about how much charge the battery can store and how long you can draw current from it. It’s usually expressed in ampere-hours (Ah or mAh), which links the amount of current you can pull to the time you can pull it. For example, if a battery has 3 Ah, drawing 1 A would let you run for about 3 hours, while drawing 2 A would run you about 1.5 hours. This is why the idea of “the amount of current you can produce for one hour” is a practical way to think about capacity—it’s the total charge available over that hour. The other options describe energy stored (watt-hours), the voltage limit, or weight, none of which define capacity.

Battery capacity is about how much charge the battery can store and how long you can draw current from it. It’s usually expressed in ampere-hours (Ah or mAh), which links the amount of current you can pull to the time you can pull it. For example, if a battery has 3 Ah, drawing 1 A would let you run for about 3 hours, while drawing 2 A would run you about 1.5 hours. This is why the idea of “the amount of current you can produce for one hour” is a practical way to think about capacity—it’s the total charge available over that hour. The other options describe energy stored (watt-hours), the voltage limit, or weight, none of which define capacity.