During the use of the battery, in order to balance the capacity loss caused by the start-up and discharge of the battery, it is necessary to carry out a continuous and long-term constant voltage charging of the battery, which is called ().

During the use of the battery, in order to balance the capacity loss caused by the start-up and discharge of the battery, it is necessary to carry out a continuous and long-term constant voltage charging of the battery, which is called ().
A . Charging
B . Self-discharge
C . Equalizing Charge
D . Charging test

Answer: A