We test and review what we think is the best car battery tester, plus other options at different price points at AutoGuide.com.

If you need to charge your car's battery and you don't have a charger, don't panic. There are several ways to charge it that don't involve one.

Every car has a red “alternator” or car battery symbol in the instrument panel that illuminates when the ignition is switched on.

John Paul, AAA Northeast's Car Doctor, answers a question from a reader wondering what caused a battery failure.

If the benefits of a clean car battery sound good to you, then cleaning them is pretty straightforward and can be done with things you probably have lying around the house right now.

How long does a car battery last? A fully charged or new car battery can be reasonably expected to last three to six years. What is the average lifespan of a car battery?

A weak battery can wreak havoc with all sorts of sensors, and this could mean you're very likely to see an orange "check engine" light appear on your instrument cluster as the car records a fault.

Can I safely keep my battery charger connected to the charging post to maintain all established memory settings?

As an example, my wife’s car is a 2015, and when the battery was eight years old, one day it just about started. I should have replaced it sooner. With my vehicles, I tend to test batteries often.

Explore top car battery maintainers and chargers with tips on selecting the best one to keep your vehicle's battery charged efficiently.

Whether you're preserving a classic or just avoiding that dreaded click, keep your car powered up with our picks for the best battery chargers and maintainers.

Key Takeaways: Choosing the right car battery is vital for reliable vehicle performance, especially in demanding conditions. There are tons of quality battery companies out there, but the brand ...