As compared to constant-current system, the constant-voltage system of charging a lead acid cell has the advantage of___________?
A. Reducing time of charging
B. Increasing cell capacity
C. Both (a) and (b)
D. Avoiding excessive gassing
The capacity of a battery is expressed in terms of____________?
A. Current rating
B. Voltage rating
C. Ampere-hour rating
D. None of the above