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Allowing that the battery in question is in good condition: the answer is yes, but to a small amount.

Large heavy batteries cost more in fuel to move around than small light batteries.

But since a small battery may weigh 12 pound less than alarge heavy battery for the same car the difrence is tiny.

Abattery that is faulty may cause much higher fuel consuption as the charging system will work to charge a attery that can not be charged.

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11y ago

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