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Aspirin in auto Batteries? 1

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Barthbill

Aerospace
Joined
Dec 15, 2002
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Location
US
There is a lot of folklore about an aspirin in each cell of a dead battery giving it new life.

Does anyone know of the scientific explanation for this?
 
Folklore.
Auto batteries are lead acid. Specifically lead (pB) and lead oxide (pBO2) and dilute sulferic acid (H2SO4). Two units of acid combine with 1 each lead and lead oxide to form lead sulfate and water, releasing electrons. Charging reverses the chemistry. A depleted battery therefore has used up both its acid and its lead. Addition of more acid, either battery acid or aspirin, can give a temporary boost. But since there is no additional lead, it is TEMPORARY.

Blacksmith
 
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