BATTERY PACK CHARGING SYSTEM

摘要

A charging system capable of charging a battery in a full charged state or a n almost fully charged state while preventing performance degradation of the battery attributed to heat generation caused by the charging. The battery pa ck charging system (1) comprises a temperature sensing means (15) for measuring the battery temperature, a charging means (12), and a control means (13) for controlling the charging means (12) according to the battery temperature, an d the control means (13) performs temperature feedback charging with a quantit y dependent on the temperature (.DELTA.T/.DELTA.t) as a desired value (Y). The battery can be charged in a fully charged state or an almost fully charged state while preventing performance degradation of the battery attributed to heat generation caused by the charging.