Question

how is lead used in a car battery

Answer 1

Lead–acid batteries lose the ability to accept a charge when discharged for too long due to sulfation, the crystallization of lead sulfate.

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Answer 2

Question:-

How long do lead acid car batteries last?

Answer:-

Batteries used in cars are lead-acid batteries. They produce voltage by having plates of metal (made of lead-based alloys) immersed in an electrolyte solution (a mix of 65% water and 35% sulphuric acid) in six cells. ... The battery's Ah (ampere-hours) rating is the measure of how much electrical current it can deliver.

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