Technician A says that a higher CCA battery always has a higher open circuit voltage than a lower CCA battery. Technician B says that the reserve capacity rating of a battery indicates the exact length of time a truck can be driven with a failed charging system. Who is correct?

Question

Quizplus · Accepted Answer

The Cold Cranking Amps (CCA) rating of a battery does not determine its open circuit voltage; both high and low CCA batteries typically have the same open circuit voltage when fully charged. The reserve capacity rating indicates how long a battery can supply a certain amount of current, not the exact time a vehicle can be driven with a failed charging system.

Technician a Says That a Higher CCA Battery Always Has