Method for distinguishing a standard battery from an ultrafast b

Details Method for distinguishing a standard battery from an ultrafast b Method for distinguishing a standard battery from an ultrafast b

1997-10-24

1999-05-18

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Means to identify cell or battery type

320125, H01M10/44;10/46

Patent

active

059053585

ABSTRACT:
In a charging system having a battery (104) with a high rate protection switch (120), and a charger (102) having a disable switch (221) that cooperates with a control switch transistor (224) to alternatively enable and disable the high rate protection switch, a method is employed by the charger to determine the presence or absence of the high rate protection circuit and apply an appropriate charge regime. The method includes applying a test current, then measuring the battery voltage while trying to disable the high rate protection circuit. If the voltage is sufficiently higher during such time, compared to normal operation, then the battery is charged at an ultrafast rate.

REFERENCES:
patent: 5057761 (1991-10-01), Felegyhazi, Sr.
patent: 5471128 (1995-11-01), Patino et al.
patent: 5576612 (1996-11-01), Garrett et al.

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