Apparatus for detecting a remaining capacity of a battery in a p

Details Apparatus for detecting a remaining capacity of a battery in a p Apparatus for detecting a remaining capacity of a battery in a p

1994-12-29

1997-03-04

Regan, Maura K.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324427, 324433, 340636, 320 48, 364483, G01N 27416

Patent

active

056083246

ABSTRACT:
A controller of a card radio modem connectable to a data terminal measures two kinds of a battery voltage under a different load condition of the card radio modem. The controller determines the kind of battery and detects the remaining time of accuracy, based on the kind of the battery. In addition, the controller calculates an available capacity of a file data to be transmitted and received during the remaining time. When the available capacity is smaller than a capacity which is necessary to transmit and receive, the controller generates an alarm to inform an operator. The controller displays the available capacity or remaining time on a display.

REFERENCES:
patent: 4914393 (1990-04-01), Yoshido
patent: 5248929 (1993-09-01), Burke
patent: 5321392 (1994-06-01), Skakoon et al.
patent: 5365221 (1994-11-01), Fennell et al.
patent: 5371682 (1994-12-01), Levine et al.
patent: 5424722 (1995-06-01), Inada et al.
patent: 5455499 (1995-10-01), Uskali et al.

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