It started as one of those annoyances that feels almost cute—until it doesn’t. The key fob that normally unlocks the doors with a satisfying blink suddenly did nothing. No beep, no lights, no drama… ...

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 ...