Otherwise, serious damage will occur. Always select a battery that has enough cranking power and reserve capacity to get the job done. Consider the vehicle manufacturer's recommended capacity to be a minimum capacity guideline. Along with electrical accessories, temperature also has a dramatic effect on battery performance. Vehicles that are operated in extremely hot or cold climates will need a battery that's rated well above the minimum O.E. recommendation.
Temperature has a dramatic effect on a battery's ability to crank an engine .
Not only does cold rob batteries of power, it also stiffens motor oil, making engines harder to start. So do yourself a favor, select the higher capacity, more powerful batteries you'll need to tackle demanding climates. Wear safety glasses. Special care must be taken when installing a battery to avoid a serious explosion or accident. If available, a computer memory saver should be used to save the vehicle's memory and avoid having to reprogram.