System for indicating a low battery condition

Details System for indicating a low battery condition System for indicating a low battery condition

1993-04-12

1994-11-15

Cosimano, Edward R.

Boots, shoes, and leggings

320 43, 320 48, 324430, 340636, G06F 1520

Patent

active

053654536

ABSTRACT:
A system for accurately predicting impending battery failure in battery powered electronic and electrical devices. The system continually monitors changes in battery voltage responsive to load changes and calculates a ratio of the change in voltage to the change in load. When the ratio exceeds a certain threshold value, indicating that the impedance of the battery has risen to near its final value, a user warning indication is generated.

REFERENCES:
patent: 2864055 (1958-12-01), Kordesch et al.
patent: 3946299 (1976-03-01), Christianson et al.
patent: 4743855 (1988-05-01), Randin et al.
patent: 5119011 (1992-06-01), Lambert

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