Cold weather kills car batteries fast. If yours is 3+ years old, watch for these warning signs before you're stranded. Here's how to spot a failing battery ...

Not so with battery-electrics.Their vigour is determined by the so-called State of Health (SoH). It is the key value for assessing the state of the most expensive component in an electric car.Battery ...

A car battery is a crucial component that plays a vital role in the operation of a vehicle. Its primary function is to provide electrical energy to start the engine and power various electrical ...

️ Editor's note: This article was updated with new information in December 2025. Dead batteries are a predictable reality for any car that spends more time parked than driven. Battery discharge does ...

Consumer Reports tests batteries for life, reserve capacity, and cold performance. Some batteries perform admirably, but ...

These are the best car batteries for cold weather, based on Consumer Reports' extensive tests. Plus, expert advice on car ...

The Topdon BT200 Battery and Charging System Tester showed up at exactly the right time. I’ve gotten a couple of sporadic check engine lights from a low-voltage code with no noticeable difficulty ...

You try to turn on your car, and it just won’t start. Maybe the dashboard doesn’t even light up. A likely cause: The 12-volt battery is dead. All cars lose a little battery power when parked. If you ...

Batteries lose capacity over time. The process can be slowed down, but it’s inevitable, so after a few years, your EV won’t provide quite as much range as when it was new. The battery will lose about ...

My “unicorn” Volvo V90 plug-in hybrid wagon is almost four years old. Here’s how healthy its high-voltage battery is.