NAPA AutoCare Centers of Dekalb County

Car Batteries Feel Summer Heat Too


Your car battery is essential to your car’s life. Contrary to the popular thought, batteries are more likely to fail in the summer than in the winter. As summer approaches, get the KNOW HOW on protecting your battery from that summer heat.


Car batteries do not last forever even under normal conditions. Your battery should be replaced every 5-7 years depending upon the instructions printed on the battery label. There are two main causes of a shortened battery life: hot weather and overcharging.

KNOW HOW: Heat accelerates chemical activity and higher temperatures in the summer speed up internal corrosion. This is especially true when the battery reaches high internal heat.

KNOW HOW: Batteries contain liquid and extreme heat evaporates the liquid. Cars need fluids during extreme heat that can act as a lubricant and coolant. Low levels of fluids will damage the internal structure of the battery.



A few signs of a failing battery includes: dim headlights and/or interior lights, accessories failing to operate, and the “check engine” or battery light coming on. If you notice any of these signs, visit your local NAPA AutoCare Center to have your battery checked out.

KNOW HOW: To prevent a dead battery ask your local NAPA AutoCare expert to check your electrical system when you get your car serviced to ensure your battery is not overcharging.

KNOW HOW: Keep the top of your battery clean. Dirt and engine grease can cause your battery to drain.

KNOW HOW: Check your battery and electrical system every 3-6 months, especially if your battery is more than 3 years old.