At this time of the year, the heat can kill your car’s battery, but there are some things you can do to make it last a bit longer.
To get the most life out of a battery, CentricAuto.com suggests the following:
Be sure the electrical system is charging at the correct rate; overcharging can damage a battery as quickly as undercharging.
If your battery is the type that needs to be topped off, check it regularly, especially in hot weather. Add distilled water when necessary.
Keep the top of the battery clean. Dirt becomes a conductor, which drains battery power. Further, as corrosion accumulates on battery terminals it becomes an insulator, inhibiting current flow.
Always replace a battery with one that’s rated at least as high as the one originally specified.