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Batteries in a flashlight need to be changed often because they discharge over time due to the chemical reactions that produce electricity, which can be accelerated by factors like temperature and usage frequency. Additionally, if a flashlight is used frequently or left on for extended periods, the batteries can deplete quickly. Old or depleted batteries may also leak or corrode, which can damage the flashlight. Regularly changing the batteries ensures optimal performance and reliability.

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AnswerBot

1d ago

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