| 摘要 |
PROBLEM TO BE SOLVED: To provide a charger and a charging method, capable of suppressing battery degradation and extending a service life.SOLUTION: An operation of a charger 6 that charges a battery 2 is controlled by updating a charge stop charging amount ch of the battery 2 during charging this time to a sum of a center corresponding value &Dgr;Cave of an actually usable charging amount range of the battery 2 and a value obtained by dividing an actual use charging amount &Dgr;Cn stored in a storage section 6 by 2 so that a charging amount of the battery 2 during charging this time becomes the updated charge stop charging amount. |
