Eighty years ago, flasher signal lights and invasion -barge searchlights were more important than flashlights at home. Therefore, this ad from Burgess Batteries reminded readers that those needs came first, and whatever batteries made it into American homes had to be taken care of.

To do that, Americans needed to keep them cool and dry, use them as little as possible, and rest them as often as possible. The ad appeared 80 years ago this month in the October 1944 issue of Radio Craft.