How long do electric
car batteries last?


Are you worried about your EV's battery losing its power over time?

Along with ‘Range Anxiety’, electric car batteries have become a major concern for those thinking about buying an electric vehicle (EV). Purchasers worry about how long the battery will last and if it will lose its power over time.

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Just like the battery in your phone or laptop, the batteries in electric cars can lose the ability to hold a maximum capacity over time. But don't worry - experts are here to explain everything you need to know about electric car battery life.


Why does an electric car battery lose charge?

Electric car battery life matters. Having a basic understanding of how it works can help prevent overcharging and letting it completely drain to zero percent.

The battery in an electric car works by storing energy that powers the car's motor. Every time you drive your electric car, the battery goes through cycles of being used (discharged) and then recharged when you plug it in. Over time, these cycles can wear down the battery, reducing its ability to hold a charge. This means you might not be able to drive as far on a single charge as you could when the battery was new.


How long can I expect an electric car battery to last?

Most manufacturers offer warranties for their batteries that last between five to eight years. However, technical experts predict that electric car batteries can last anywhere between 10 to 20 years before they need to be replaced.

The good news is unlike your phone or laptop batteries, electric car manufacturers have designed their batteries to be more durable and last longer by using techniques like buffering, which means you can't use the full amount of power stored in the battery, and water-cooling systems to keep the battery from getting too hot.


Here's how to make your car battery last longer.

To ensure your EV battery lasts as long as possible, there are a few things you can do:

1. Charge your battery between 20% and 80%: Charging your battery within this range can help extend its lifespan. However, try not to let the battery drop below 50% too often, as this can cause it to deteriorate faster.

2. Avoid overcharging: Overcharging your battery can cause chemical changes that affect its ability to hold a charge. Try to reduce the number of charging cycles your battery goes through.

3. Keep your car out of extreme temperatures: Extreme cold or heat can damage your battery and reduce its range.


Why does an electric car battery lose its charge?

Most EV  batteries are lithium-ion based, which means they go through cycles of being charged and discharged. Over time, these cycles can reduce the battery's ability to hold a charge, which means your electric car won't be able to travel as far on a single charge as it used to.

But don't worry too much about having to replace your electric car battery. On average, electric car batteries last around 10 years, with some lasting up to 20 years. And even if your battery starts to lose its capacity over time, it's usually due to normal wear and tear from extended use.


How long is a manufacturer's car battery warranty?

If you do experience any issues with your electric car battery, it's a good idea to check your warranty first. Most warranties will cover any defects or faults in the battery, so you might be able to get it replaced for free. Also, most EV manufactures allow the warranty to be transferred to another owner, so you should be fine buying a used electric car.

So, in conclusion, electric car batteries can last a long time – usually around 10 years or more. With proper care and maintenance, you can help extend the life of your electric car battery and enjoy many years of driving emissions-free.


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Article posted on: 12 April 2024. Author: Ken

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