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How do Car Batteries Work?

A car battery or an automotive battery in general is built on lead-acid battery technology. This technology basically converts chemical energy into electrical energy and has been there for decades. It is reliable for the harsh environment of vehicles like extreme temperature swings and vibrations.

Lead-acid batteries for cars or SUVs are made of specialized hard plastic shell which contain Lead oxide plates and Sulphuric acid as electrolyte. This in fact is an arrangement of six cells of 2.1 volts each connected serially to give an output of 12.6 volts in fully charged condition.

how-car-batteries-work-blogThe Chemical Process

In a lead acid car battery, electrical current is created during the discharge cycle as the lead oxide plates absorb sulphate from the diluted sulphuric acid solution. When the battery is charged, the process is reversed. Current is pushed through the positive terminal into the plate pack, causing it to shed the sulphate it absorbed during discharge.

Chemicals and metals are added to the lead oxide of the plates in order to stabilize them and to slow down their rate of degradation under extreme usage.

Typically a car/SUV battery lasts anything between 3 to 4 years.

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United Auto Centre
SCF 413, Motor Market Complex, Manimajra
Chandigarh, Chandigarh, India 160101
Phone: 172 273 7453 , 172 507 5169
Email: info@unitedautocentre.in

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