Battery charger and charging method

Details Battery charger and charging method Battery charger and charging method

1999-02-26

2000-06-13

Berhane, Adolf Deneke

Electricity: battery or capacitor charging or discharging

Battery or cell charging

With thermal condition detection

320153, H02J 704

Patent

active

060753471

ABSTRACT:
A battery charger and a charging method capable of charging a battery for a short period of time while suppressing battery temperature from rising. The current temperature of the battery is detected (in step S12) and a temperature rise is calculated from the detected temperature (in step S14). An allowable current map is then retrieved from the detected temperature and the obtained temperature rise, an allowable current with which the battery can be charged while suppressing battery temperature from rising is obtained (in step S16) and the battery is charged with the allowable current (in step S20). Since the allowable current which the battery can be charged with, while suppressing battery temperature from rising is retrieved using the map which the allowable current is mapped, based on battery temperature and battery temperature rise, and charging current is controlled, it is possible to charge the battery for a short period of time while suppressing battery temperature from rising.

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