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 ...

Discover 5 best car batteries for cold weather, key specs, and tips to prevent winter no-starts, helping drivers choose long-lasting car batteries in cold climates.

For the test, Consumer Reports used a freezer to cool the car batteries to 0° F. They then rated them based on how long they can provide enough amperage to start a car in the cold. This way, ...

️ 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 ...

Your car’s battery might seem like a “set it and forget it” part, but when it fails, it can leave you stranded, potentially costing you hundreds of dollars in tow fees or a visit to the mechanic to ...

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 ...

Every car needs a battery to help it start and power its electronics. Here's how many volts this all-important component ...

Parasitic drains can be extremely annoying, but they're not impossible to identify. Here are some ways to find a parasitic drain in your car.

A battery management system (BMS) monitors and controls batteries in vehicles such as more-electric aircraft and electric cars. It needs to undergo rigorous tests under nominal and extreme conditions ...