Most of us at one time or another will experience battery trouble with a vehicle.
Nine times out of ten, that trouble will happen on a day that is either extremely cold or extremely hot. Temperature extremes can have a negative impact on battery performance in many different applications. This is because lead-acid batteries generate power through a chemical reaction process. Chemical reactions are sensitive to temperature and humidity among other factors.
The reaction taking place inside your car battery can be simplified as the transfer of ions between lead and lead dioxide plates...