Technician A says that a lead acid battery uses straight Hydrochloric acid for electrolyte. Technician B says that a lead acid battery uses straight sulfuric acid for electrolyte.

Technician B is correct

It is safe to say that Lead acid uses sulfuric acid. When fully charged, the electrolyte consist of 40% concentrated sulfuric acid and the remainder consist of mostly water. However, as it discharges, both the positive and the negative plates turn into lead sulfate with the electrolyte loosing much of its dissolved sulfuric acid and water.

Technician A is correct because i tried Technician B and it was wrong so its Technician A