LOW BATTERY VOLTAGE ALERT SYSTEM
First Claim
1. A system for alerting a low battery charge condition in a jump-starter, the system comprising:
- a first battery comprising a rechargeable lead-acid battery, a positive terminal, and a negative terminal, wherein the first battery is configured to provide a first battery voltage across the positive terminal and the negative terminal;
a voltage comparison circuit electrically connected to the positive terminal and the negative terminal, wherein the voltage comparison circuit is configured to compare a reference voltage to the first battery voltage;
an alert circuit electrically connected to the voltage comparison circuit and configured to generate an output signal for a speaker; and
a switch configured to toggle between an enabled state and a disabled state,wherein the alert circuit is configured to cause an audible alert when the first battery voltage is less than the reference voltage and when the enabled state is true.
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Accused Products
Abstract
Certain embodiments of the present invention provide a system for alerting a low battery charge condition in a jump-starter. In an embodiment, the system is portable. The system includes a first battery. The first battery is configured to provide a first battery voltage across a positive terminal and a negative terminal of the first battery. The system also includes a voltage comparison circuit that is electrically connected to the positive terminal and the negative terminal of the first battery. The voltage comparison circuit is configured to compare a reference voltage to the first battery voltage. The system includes an alert circuit electrically connected to the voltage comparison circuit and configured to generate an output signal for a speaker. The system also includes a switch configured to toggle between an enabled state and a disabled state. In an embodiment, the switch includes a stopper tap. The alert circuit is configured to cause an audible alert when the first battery voltage is less than the reference voltage, and when the enabled state is true. When the enabled state is false (or the disabled state is true), the alert circuit will not cause the audible alert. In an embodiment, the system includes a display circuit to visually indicate the first battery voltage.
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Citations
20 Claims
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1. A system for alerting a low battery charge condition in a jump-starter, the system comprising:
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a first battery comprising a rechargeable lead-acid battery, a positive terminal, and a negative terminal, wherein the first battery is configured to provide a first battery voltage across the positive terminal and the negative terminal; a voltage comparison circuit electrically connected to the positive terminal and the negative terminal, wherein the voltage comparison circuit is configured to compare a reference voltage to the first battery voltage; an alert circuit electrically connected to the voltage comparison circuit and configured to generate an output signal for a speaker; and a switch configured to toggle between an enabled state and a disabled state, wherein the alert circuit is configured to cause an audible alert when the first battery voltage is less than the reference voltage and when the enabled state is true. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for detecting a low battery charge condition, the method comprising:
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toggling with a switch to enable an audible alert and to disable the audible alert; measuring a first battery voltage, wherein the first battery voltage comprises a difference between a voltage of a positive terminal of a first lead-acid rechargeable battery and a voltage of a negative terminal of the first lead-acid rechargeable battery; establishing a reference voltage; comparing the first battery voltage to the reference voltage; determining if the first battery voltage is less than the reference voltage; and generating an audible alert when the first battery voltage is less than the reference voltage and when the switch is toggled to enable the audible alert. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system for communicating a low battery charge, the system comprising:
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a means for toggling between an enabled state and a disabled state; a means for measuring a first battery voltage, wherein the first battery voltage comprises a difference between a voltage of a positive terminal of a first lead-acid rechargeable battery and a voltage of a negative terminal of the first lead-acid rechargeable battery; a means for establishing a reference voltage; a means for comparing the first battery voltage to the reference voltage; a means for determining if the first battery voltage is less than the reference voltage; and a means for generating an audible alert when the first battery voltage is less than the reference voltage, and when the switch is toggled to enable the audible alert. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification