The correct answer is C. remains constant.
In constant-current charging, the charging current is kept constant until the battery reaches a certain voltage, called the cut-off voltage. At this point, the charging current is reduced to a trickle charge to maintain the battery’s charge.
The supply voltage in a constant-current charging method remains constant throughout the charging process. This is because the charging current is kept constant, and the voltage across a resistor is proportional
42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube