19/08/2025 4:55 am
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I was told in school that a capacitor can store charge, and I know a battery also stores charge. Out of curiosity, does that mean we can use a capacitor instead of a battery for powering a circuit, at least for a short time?
If so, how practical is it, and what are the main differences between how a capacitor and a battery store and release energy?
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20/08/2025 4:57 am
When I was in school, I also thought a capacitor could replace a battery. But later I learned it’s not possible because a capacitor stores energy electrostatically and discharges it very quickly, which makes it useful only for short bursts. A battery, on the other hand, stores energy chemically and can deliver it steadily for a long time.
