Suwanee, Decatur & Marietta Auto Repair

The alternator and car battery are pivotal to starting your vehicle’s engine. However, it can be difficult to distinguish a charging problem vs. a starting problem. Today, we are bringing you the key differences between a car battery and an alternator and their failing symptoms. Functions of a Car Battery The car battery is responsible for holding chemical energy which eventually gets converted to electrical energy to power the engine. It starts the ignition system and is a major power source for the rest of the car. When the battery is getting used, it gets recharged by the alternator. However, the battery deteriorates over time. It is recommended that you replace your vehicle’s battery every 3-5 years. Signs of a Bad Battery 5 years or older Slow engine starts Corrosion on the battery - typically looks white, blue, or green and clings onto the battery terminals Frequent jump starts Battery Warning Light Illuminated Functions of an Alternator The alternator direc ... read more