A charged battery is a happy battery. Keeping your car's battery properly charged is essential to long life and reliability. When you drive, your car's charging system keeps your battery topped up.

Not all cars are meant to be driven every day. If you own a special vehicle, such as a classic or sports car, you probably keep it tucked away somewhere until you're in the mood to take it for a spin.

️ 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 ...

A battery can feel “fine” right up until it isn’t. Cold weather cuts output. Short trips don’t refill the charge. Let a car sit for two weeks, and the first start can turn into a sad click. If your ...

Cold snaps turn “fine” batteries into dead weight, especially if your car sits. A smart battery maintainer keeps charge steady so you start clean tomorrow. Battery maintainers prevent dead starts, ...