Your car relies on an auto battery to start the engine and power electrical features, like the radio and headlights. Although this component is essential to a vehicle, many drivers don’t know how the cell operates or what they need to do to maintain it. If you’re a first-time car owner, use this guide to help you get informed.

FAQ About Auto Batteries

How do they work?

Like any cell, your car’s battery relies on a chemical reaction to generate electrical power. Most auto batteries use plates of lead and lead dioxide submerged in a powerful acid. This acid causes the plates to interact, generating electrons that flow through the terminals and to your car’s engine.

What’s the green substance forming on the terminal?

This substance signals corrosion, and it reduces battery efficiency and causes it to fail. Corrosion occurs when hydrogen gas escapes the sulfuric acid inside the cell. This problem is often caused by undercharging the battery, which is common if you only use your car for short trips.

When do I need to replace it?

A car battery will typically last four or five years, but this life span can be shortened if the cell is repeatedly drained or undercharged. Signs that it’s time to swap the battery include dim headlights, trouble starting your car, and the need for frequent jump-starting.

How do I get rid of my old one?

Since batteries contain lead and a powerful acid, they can’t be placed in the trash. Luckily, their components can be recycled. Many auto stores accept old cells, making it easy to dispose of them safely when you buy a new one.

If you need to replace your vehicle’s battery, head to Larry’s Auto Parts in Honolulu, HI. This NAPA Auto Parts® franchise has  provided Oahu drivers with high-quality tools, parts, and accessories to handle a variety of DIY car repairs. Call (808) 734-2147 to inquire about their inventory or place an order.