The constant voltage charging method is one of several charging methods for rechargeable batteries. It is a relatively simple method in which the constant charging voltage of the charger is applied to the accumulator
via a current limiter. The charging voltage remains constant during the initial charging phase of a discharged battery. As the charge increases, the difference between the charge voltage and the battery voltage decreases, resulting in a reduced
.zero when there is no voltage difference between the charge voltage and the battery voltage.
If the charge voltage from the charger is less than or equal to the final charge voltage of the battery, the battery cannot be overcharged.