In a vehicle whose battery requires periodic maintenance, which checking and care task must be carried out?

Question

DentroTest · Accepted Answer

Batteries that require maintenance need periodic checks of the electrolyte level (a mixture of distilled water and sulfuric acid) inside their cells. This liquid must cover the lead plates by approximately one centimeter. If the level drops because of evaporation, it must be topped up exclusively with distilled water, never with tap water, since the minerals and limescale damage the plates. In addition, it is essential to keep the terminals clean and protect them with petroleum jelly or a specific grease to prevent sulfation and ensure good electrical contact. Blocking the holes in the caps is very dangerous, since they must allow the free escape of the gases generated during charging.

In a vehicle whose battery requires periodic maintenance, which checking and care task must be carried out?

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