Shopping for a car battery? Read about types, features, and other must-know topics in our car battery buying guide to make an informed choice.

Why size matters: Battery group size determines fit, terminal placement, and power output. Using the wrong size can cause poor connections or prevent installation entirely. Avoid costly mistakes: ...

Replacing a car battery was one of the first things I learned to do on a car. I’ve probably replaced a dozen batteries under various conditions—in my garage, outside in the snow, in a store parking ...

The cost to replace an electric car battery that’s out of warranty can range from about $5,000 to about $20,000, but the odds of needing to replace one are low. This page includes information about ...

A car battery, even the best one, won't last forever. When it's time for a new one, you can change your car battery yourself. Here's how to do it. Your car’s battery is what makes everything in your ...

We rank the top 10 car battery brands in the US for 2026 based on consumer reports and independent testing data.

ECU relearning period: Replacing a car battery resets the ECU, which must relearn driving habits, temporarily lowering fuel efficiency. Variable recovery time: The time to regain normal MPG depends on ...

Every battery needs a 12-volt car battery, even that newfangled electric car you're driving around. 12-volt car batteries continue to be the biggest part of the $100-billion auto battery market, and ...

There’s a lot to consider when buying an electric vehicle: Which models are best? How much range is enough? How does charging work? Along with these variables, maintenance costs are another facet of ...

Car batteries rely on a chemical reaction to start vehicles. The age of your battery plays a huge role in its voltage and ability to start a vehicle in lower temperatures. Winter is almost here, and ...