A hybrid has two batteries, and the bigger one matters more than most drivers realize. Here's what can happen when it fails, plus signs to watch for.

What's the difference between a parallel, series, and plug-in hybrid, and why do you need to know? Everything about the technology and the vehicles for the shopper or the merely curious.

When your new-car research includes hybrids, you may come across some unfamiliar technical terms. Here's what you need to ...

Your car's 12-volt battery is one of its most vital components. It's responsible for sending electricity to the starter motor, which, in turn, sends power to the ignition system and cranks the engine.

While there’s no way to predict exactly how long the battery will last - how much you use the EV, how you charge it and the ...

The Porsche 911 GTS T-Hybrid runs two kinds of power: gasoline for the long haul, electrons for the instant hit. A compact 400-volt, 1.9-kWh high-voltage battery up front feeds an electric exhaust ...