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What is the end state of the electrolyte (liquid) when a 12V lead acid battery is discharged?

What is the end state of the electrolyte (liquid) when a 12V lead acid battery is discharged?

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Asked by Sjones, Last updated: Dec 18, 2024

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3 Answers

Bergeront Tiffney

Bergeront Tiffney

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Bergeront Tiffney
Bergeront Tiffney, Computer Engineer, M. Tech, Southeast Montgomery

Answered May 01, 2019

Lead sulfate is the end state of electrolyte (liquid) when a 12v lead acid battery is discharged.
When a battery is being discharged, the sulfuric acid in the electrolyte is being depleted so that the electrolyte look more like water.

This electrolyte has charged ions of sulfate and hydrogen, as the sulfate ions are negatively charged, and the hydrogen ions are positively charged.

The remaining sulfate combines with the active materials on the plate to form lead sulfate. The reaction of the positive ions and the negative ions form the lead sulfate.

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John Adney

John Adney

John Adney
John Adney

Answered Feb 15, 2017

Lead sulphate
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John Smith

John Smith

John Smith
John Smith

Answered Feb 10, 2017

Water (H20)
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