Both Technician A and Technician B is correct. because the basic fundamental behind the storage of energy in the batteries is its electrolytic ions which create the potential difference we get on its terminals.
Step-by-step explanation:
- When the electrolyte level is low we put distilled water in a battery to maintain the electrolyte level and not the fresh electrolyte( solution of water and acid) itself. The water present in the electrolyte is converted to hydrogen and oxygen gases.
- As we know clean drinking water is poor in dissolved salts and ions which will not be able to hold the required electric potential in the electrolyte of the battery.
- Whereas a solution of acid and water is added to the battery as its electrolyte which has a good quantity of hydronium cations and the corresponding compound's anion serving as a medium to store the potential difference.