Diehard Ad Sears

The DieHard acid test:

1. The Sears DieHard is the most powerful car battery of its size in America.

Here's a way you can test your battery. Make it wipe windshields, burn lights, play radios, heat heaters, cool air conditioners, defrost windshields, roll windows up, blow horns and, oh yes, have it make 1500 or more engine starts a year... for five years. If it passes, it's a good battery. If it's a Sears DieHard, it's America's most powerful car battery, according to this, and a few other tough tests. In every standard power test, established by the Society of Automotive Engineers, the Sears DieHard beats every other battery of its size, of any make. There's a very simple reason for this... simple that is, after you find out how to do it. The best way to make a battery more powerful is to make it bigger. But if it were bigger, it wouldn't fit in your car. So we made it bigger on the inside. Instead of a thick, heavy rubber case, the DieHard has polypropylene walls which are 50% thinner (though 60% stronger at 0° F). This makes more room for bigger plates, more acid. And that makes more power. Want proof? Sears bets the DieHard will pass the five year Acid Test. Otherwise it wouldn't be backed by a Sears no-nonsense five year guarantee. You see, when Sears guarantees, Sears guarantees.

The Sears 5-year guarantee: "Free replacement within 90 days of purchase if battery proves defective. After 90 days we replace the battery, if defective, and charge you only for the period of ownership based on the regular price less trade-in at the time of return, prorated over number of months of guarantee."

Where can you buy a DieHard? Two thousand places. All Sears, Roebuck and Co. stores. 93.7 million places really, if you remember you can order by phone. And you can Charge It on your Sears Revolving Charge.