Learn how to diagnose and replace a bad car battery by following these steps. If your car is having a hard time starting or there are any electrical/lighting issues then it might be a good idea to check your car's battery health. Unfortunately, these days even good brands of normal "lead-acid" batteries only last a few years (3yrs on average). Sometimes, it can be an alternator issue, but more likely than not it's a bad battery. If you have any questions comment below or feel free to reach out via email - [email protected] Thanks for watching!