Remaining battery capacity meter and method for computing remain

Details Remaining battery capacity meter and method for computing remain Remaining battery capacity meter and method for computing remain

1995-11-21

1997-11-25

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

For charge or liquid level

320 48, H01M 1048, G01R 3130

Patent

active

056910789

ABSTRACT:
An inexpensive, high precision accumulation type remaining battery capacity meter and method are provided, whereby the remaining capacity of the battery is determined by computing an accumulated discharge value and is displayed in steps on a display unit. The meter includes a memory device with at least one data table relating the terminal voltage of a battery discharging at a predetermined discharge current or discharge power to the remaining capacity of the battery. The data table is used to correct the computed remaining capacity displayed on the display unit. Corrections are only made within a specified range so that abnormal change in the displayed capacity is prevented.

REFERENCES:
patent: 5479085 (1995-12-01), Honda et al.
patent: 5518835 (1996-05-01), Simmonds

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