What is a car battery replacement?
The battery in a vehicle is designed to power all the electrical components in your vehicle.
In simple terms, your car battery is the device that essentially starts a chain reaction inside your vehicle’s engine bay to start your car. The battery sends an electric current to your starting motor, which engages your vehicle’s ignition and fuel systems.
But when your car battery ages and its capacity decreases, you might run into problems on the road, including trouble starting your car as well as issues with the vehicle’s electrical components. When this happens, you’ll need to replace it.
There are two main types of batteries: flooded and AGM batteries.
Most modern cars use flooded cell batteries, which have a liquid electrolyte and can be replenished with distilled water
Sealed versions where the liquid doesn’t need replacing have become popular in recent years
How do I know if my car battery capacity is decreasing or dead?
There are a few tell-tale signs that your car battery needs replacing:
Your car won’t start: As your car battery ages, the cranking amps required to start it can drop. If they fall below the threshold needed to start your battery (and thus your car) and you can’t jump start it, you won’t be going anywhere until you replace your battery.
Warning light: If you see a battery warning light illuminated on your car’s display, that’s a sign that your battery is failing. Bring your car to a mechanic to run tests to see how much life (if any) your battery has left to live.
Electrical components not working: Another key sign of battery failure is if any key electrical components—your vehicle’s anti-theft system, for example—stop working. Usually, this happens as a battery decays and its voltage output drops.
How often should a car battery be replaced?
As with any other vehicle part, the battery will eventually need replacing—usually every four to seven years. When your car battery ages and its capacity decreases, you might run into problems on the road, including trouble starting your car and issues with the vehicle’s electrical components.
Can I replace my car battery myself?
Replacing your car’s battery is a simple process that takes just a few tools and a few minutes. Whether you have auto repair experience or not, you can easily find instructions on the web for disconnecting an older battery and reconnecting a new one.
If you’re not comfortable performing a battery change or you have an electric vehicle (EV), it’s best to ask for help from a professional.
Replacing an EV battery is more complicated and likely can’t be done at home. Instead, you’ll need to book a replacement service with a professional. In most cases, your electric car battery will be covered under the warranty offered by your dealership.