Safety device to prevent excessive battery drain.

摘要: A safety device (10) is wired in series with selected accessories (16) a wiring circuit for vehicle. starter motor (14) parallel the so that bypasses (10). The includes voltmeter (18) wich can detect predetermined minimum battery voltage, and breaker (20) which interrupts current to after time period if voltage reached. When engine (30) running, disabled prevent inadvertent interruption of (16). If desired, manual override switch (22) be used bypass insure supply emergency situations. In another embodiment, programmed microprocessor activates electronic switches disconnect battery.