One shopper called it a “lifesaver.” ...

Few things can ruin your day as suddenly as trying to start your car and being met with the dead silence of a dead battery. If you’re unlucky, your best bet is to find someone else with a functional ...

️ 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 ...

You try to turn on your car, and it just won’t start. Maybe the dashboard doesn’t even light up. A likely cause: The 12-volt battery is dead. All cars lose a little battery power when parked. If you ...