Which technician is correct regarding what should be added to a battery when the electrolyte level is low?

When addressing low electrolyte levels in a battery, Technician A's guidance is correct if they recommend adding distilled water to the cells. The use of distilled water is crucial as it does not contain impurities or minerals that could negatively impact the battery's performance or lifespan. Lead-acid batteries, for instance, require the electrolyte to be at an optimal level for effective chemical reactions, and topping up with distilled water ensures that the battery maintains its functionality without introducing harmful substances.

If Technician B suggests adding anything other than distilled water or fails to specify it, their recommendation would not be appropriate because using tap water or other fluids could lead to contamination and potential battery damage. By recognizing Technician A's correct recommendation to use distilled water, it becomes clear how crucial it is to understand the specifics of battery maintenance.