How often should I change the battery in my Toyota Prius?

I've had my Toyota Prius for 3 years now and I'm not sure when it's necessary to change the battery. I've heard mixed opinions, some saying it should be changed every 5 years while others say it can last up to 10 years. I want to make sure I'm taking the best care of my car and not overspending on unnecessary maintenance.

The lifespan of a Toyota Prius battery can vary depending on driving habits and environmental factors, but it's recommended to have it checked every 5 years and replaced every 10 years.

You can monitor the battery health of your Prius through the Hybrid System Indicator. If it drops below 80%, it's time to bring it in for a check-up.

As a general rule, it's better to err on the side of caution and have it checked every 5 years. Replacing the battery earlier can prevent potential problems and save you money in the long run.