a: cold battery ~
b: dead battery


"A cold battery is like a dead battery. The voltage drops and the engine will not start when that happens. The electrolysis reaction inside the cell is proportional to temperature. The colder it gets the less potential there is across each cell.
Warming the battery (to pre-frozen temp) will increase the reaction and raise the voltage. So if the battery is dead in the morning, you can either warm it up or jump start the car."

Writer: Not Stated
Date: Feb 9 2019 10:36 AM

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