Who is correct regarding battery discharge in vehicles?

In the context of battery discharge in vehicles, Technician B's statement is correct because it often includes an accurate understanding of how batteries discharge under various conditions, such as temperature, load, and battery age.

A vehicle battery will typically discharge more rapidly under greater electrical loads and higher temperatures, while low temperatures can also affect the battery's performance. Technician B likely emphasizes the impact of these factors, providing insight into how to manage battery health and capacity effectively, which is crucial for maintaining a vehicle's starting and electrical systems.

Understanding battery discharge dynamics is essential for technicians when diagnosing electrical issues or advising on maintenance practices for extending battery life. This knowledge helps to prevent failures and ensures the vehicle operates reliably.