Modern cars have swapped regular keys for key fobs, and most of them use a CR2032 button cell battery. How can you tell if it's weak? How long do they last?

The Consumer Product Safety Commission (CPSC) recently adopted comprehensive new safety and labeling requirements for consumer products containing button cell and coin batteries (or products intended ...

Lithium button cells can cause severe injury or death if swallowed. Many makers coat their batteries in a bitter substance to discourage ingestion. Energizer has now added a marker dye to make it ...

A "button cell" battery is held between a thumb and index finger. If small children swallow them, the batteries can get stuck in the esophagus and cause life-threatening injuries. (Stephanie Pilick / ...