It happens to the best of us. You realize that your car keyfob battery is low, but you figure you have plenty of time left before it dies, and usually you do. But inevitably, it will run out of power ...

Add Yahoo as a preferred source to see more of our stories on Google. Image credit: Wikimedia Dead fob battery in a parking garage at midnight? That sinking feeling hits different when you’re miles ...

Your car key fob is a small but mighty device. Have you ever wondered what would happen if it died while you were, say, at the grocery store? How do you start your car (or even get into your car!) ...

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?