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Thomas Edison had it right when he said that his nickel-iron batteries would last 100 years

Peter J. DeMar

This paper tells the story of some Thomas Edison nickel-iron batteries manufactured between 1924 and 1931 removed from a remote site in the Adirondack wilderness. We took possession of 80+ nickel-iron cells of two different AH sizes with three different model designations. These were 150 and 300 AH cells at the five hour rate. Some had electrolyte, some had none, and some had leaks. By following instructions in original Thomas Edison manuals, every cell recovered back into fully functional cells that perform above their published rated capacity when following IEEE1106. Just maybe Edison was right with his boast that these batteries would last 100 years.

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