Vehicle battery polarity indicator

Details Vehicle battery polarity indicator Vehicle battery polarity indicator

1978-11-20

1980-08-12

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 2, H02J 704

Patent

active

042175348

ABSTRACT:
Battery jumper cables provide an effective means to connect a charged battery to a discharged battery. However, the electrodes of the batteries must be properly connected for charging to occur and to avoid damage to the batteries. A battery polarity indicator is interposed between a set of battery jumper cables to provide a visual/aural indication of relative battery polarity as well as a safety circuit to prevent electrical connection where polarities are reversed.

REFERENCES:
patent: 3258672 (1966-06-01), Godshalk
patent: 3281816 (1966-10-01), Raymond
patent: 3308365 (1967-03-01), St. John
patent: 4166241 (1979-08-01), Grant

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