Patent ID: 6225786
Filing Date: 2001-05-01
Classification: H01M,H02J,Y02E

Abstract:
A battery charger dividing and charging a battery consisting of a plurality of battery cells, characterized by comprising:a storage device storing a map, in which an allowable current value, with which the battery can be charged while a temperature rise of the battery is being suppressed, is mapped based on a battery temperature value and a battery temperature rise value;a temperature detecting section for detecting a present battery temperature;a temperature rise value outputting section for obtaining the temperature rise value from the temperature detected by said temperature detecting section;an allowable current value retrieving section for retrieving the map of said storage device based on the temperature detected by said temperature detecting section and the temperature rise value outputted from said temperature rise value outputting section, and for obtaining said allowable current value;a charging section for charging said divided battery with the allowable current value retrieved by said allowable current value retrieving section; anda charge switching section for alternately switching divided blocks to be charged by said charging section.