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Why did my 7.2 old school Makita last for ten years, and my fancy new DeWalt only last two years?

April 26, 2017dewalt fancy last two years makita School

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Why did my 7.2 old school Makita last for ten years, and my fancy new DeWalt only last two years?

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Heat is your worst enemy, remember!! Higher voltage batteries have shorter lives. Higher voltage = more battery cells per pack. More battery cells per pack = more heat generated. More heat generated = more material breakdown within the cells. Lower voltage batteries produce less heat, and thus less self damage.