Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1980-09-15
1987-05-12
Tokar, Michael J.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324433, 340636, G01N 2746
Patent
active
046653708
ABSTRACT:
A method and apparatus for testing the battery and the related circuitry of an internal combustion automobile every time the vehicle is started. The test is automatic and the results are available for visual interpretation at the discretion of the operator. The cranking motor furnishes the load for the battery and an electronic apparatus automatically measures the condition of the battery every time the engine is started. The battery tester compares the unloaded voltage of the battery with the voltage under load. If the difference is larger than a preset value, or if the voltage drops below a fixed level, an indicator on the dashboard of the vehicle shows that the battery is low in charge, or it is in a faulty condition, or because of faulty conductors its power is not being delivered to the engine.
REFERENCES:
patent: 4028616 (1977-06-01), Stevens
patent: 4080560 (1978-03-01), Abert
patent: 4237198 (1980-12-01), Eby et al.
patent: 4316185 (1982-02-01), Watrous
M. Weinstein, "Guard Your Battery With PM's Charge Checker", Popular Mechanics, vol. 151, No. 5, May 1979, pp. 84, 86, 264.
Mentag Robert G.
Tokar Michael J.
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