A battery will supply the most power when it is:

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Multiple Choice

A battery will supply the most power when it is:

Power from a battery comes from the chemical reactions inside and the resulting internal resistance. Temperature controls how fast those reactions occur. At room temperature, the reactions proceed efficiently and the internal resistance stays relatively low, so you can draw more current for the same voltage, delivering more power. In cold temperatures, reaction rates slow and resistance rises, reducing the current and the power you can get. A fully discharged battery has little stored energy left to release, so the power output is then minimal. Sealing the case doesn’t change the chemistry or resistance, so it doesn’t boost power.

Power from a battery comes from the chemical reactions inside and the resulting internal resistance. Temperature controls how fast those reactions occur. At room temperature, the reactions proceed efficiently and the internal resistance stays relatively low, so you can draw more current for the same voltage, delivering more power. In cold temperatures, reaction rates slow and resistance rises, reducing the current and the power you can get. A fully discharged battery has little stored energy left to release, so the power output is then minimal. Sealing the case doesn’t change the chemistry or resistance, so it doesn’t boost power.

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