The temperatures here in south Florida are high and I don’t think I need a large battery capacity to start my car even in the winter. The technician also said that the heat causes the battery to lose capacity and installing a high-capacity battery will result in a longer battery life. I don’t want to have a large-capacity battery hurting my car. What is your suggestion?”
Halderman:
If you can afford the larger capacity battery in the size that fits your car, I would recommend that you take the advice of the technician to use a battery that is more than you need. The technician was also correct that heat is harmful to batteries; that is why batteries, when placed under the hood, usually have an insulated pad or cover to help keep engine heat from for the battery. The larger-capacity battery will not harm your car as the starter and all the electrical accessories use just what is needed. It does not result in an increased current flow from the battery. However, the life of the battery may improve and should be serviceable for a longer period of time compared to the same size battery, but with a lower capacity.
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