Diehard makes the toughest auto batteries you can buy. They’re built to withstand the most extreme conditions. So what happens when the toughest car battery maker introduces Alkaline batteries for the home? Will they be tough enough? Will they stand the test? To find out we re-created the original Diehard torture test commercial from thirty years ago- put a car on a frozen lake, left it for hours and hours and went to see if it would still start. The only twist was, this time it was a remote control car, with mini Diehard batteries. And yes, it still started.