Charging Apparatus, Charging Program, and Charging Method

A charging apparatus, a charging method, and the like that can prevent deterioration in a battery by appropriate current adjustment and shorten charging time are provided. A charging apparatus performs charging of a battery with a constant current until a voltage of the battery reaches a predetermined voltage and, after the predetermined voltage is achieved, performs charging of the battery while controlling the current so as to keep the voltage constant. A deterioration measuring unit detects a deterioration condition in the battery . A current and voltage adjusting unit specifies an additional current in accordance with the deterioration condition. A power supplying unit supplies the additional current to the battery in addition to the constant current. Such a deterioration condition is specified by a voltage difference or a temperature difference detected by supplying a single amount of current for a certain period.