Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1990-12-03
1992-07-14
Snow, Walter E.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324426, 324427, 320 48, 340636, G01N 2746
Patent
active
051306590
ABSTRACT:
A battery monitor is disclosed for indicating the projected time until the battery reaches a lower threshold value indicative of the energy capacity of the battery. The battery monitor includes a microprocessor which iteratively reads the value of the battery voltage. The microprocessor then determines the rate of discharge of the battery and projects the future values of the battery voltage as well as the projected time at which the battery voltage attains the threshold voltage. This projected time is then displayed on a visual indicator, such as an LCD display. In an alternate embodiment, warning lights are selectively illuminated to indicate a full charge, medium charge and low charge conditions.
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Snow Walter E.
Solis Jose M.
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