Consumer Reports tests batteries for life, reserve capacity, and cold performance. Some batteries perform admirably, but these five aren't up to snuff.

How well a battery withstands repeated charge-discharge cycles in high temperatures. A higher score means better reliability and voltage retention over time. How long a battery can power a car if the ...

Unlock to see our ratings and compare products side by side Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more ...

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 ...

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 ...

Your car battery has to work harder in frigid Ohio temperatures. Here's why it happens, how to avoid battery issues, and how ...