The proper function of a vehicle's systems and components depends on power provided by the battery. If the power source fails, you could be stranded at home or in the middle of running errands. Fortunately, knowing when to get a new battery from a used auto parts retailer can keep you on the road safely and with minimal inconvenience. Here's how to tell when yours is damaged or running out of juice.

4 Signs of Auto Battery Failure 

1. Clicking Sounds

When you insert your key and turn the ignition, the battery sends an electrical signal to the starter's motor. If the battery has low voltage, it may not provide enough current for the starter motor to crank the engine. This often causes the starter relay to click as it unsuccessfully attempts to turn the motor. Replacing the battery with one that has a resting voltage of at least 12.6 volts can provide sufficient current to start your vehicle.  

2. Slow Cranking

You might notice that the engine cranks slowly once you turn the key in the ignition, meaning your auto battery has just enough voltage to start your vehicle. When this occurs, you should replace the battery immediately since it might not have enough voltage to crank the engine at all the next time you get behind the wheel. 

3. Physical Changes 

Temperature fluctuations can cause the battery casing to bulge or swell. Moisture exposure may corrode the battery terminals, and leaking battery acid can leave a film on the casing. Since these physical damages may reduce voltage and present fire hazards, replacing the battery can ensure proper operation and promote safety. 

4. Electrical System Issues 

When an auto battery lacks sufficient voltage, your headlights may appear dim. Additionally, your vehicle's power locks, windows, and stereo system may function intermittently or stop working altogether since the failing battery can't send enough current to them. 

Getting a new battery can help you see the road clearly while driving at night. This is a major safety upgrade, as it helps you prevent accidents. You'll also be able to use your power locks, windows, and stereo system without trouble. 

When you need to replace your auto battery, contact Stewarts Used Auto Parts. They provide used auto parts and junk car removal to clients throughout the Barkhamsted, CT, area. Call this salvage yard at (860) 379-7541 to ask about batteries in stock, and visit the website to learn more about how they can help keep your vehicle fully functional with dependable used auto parts.