Patent ID: 6891350

Claim:
A jump start circuit for electrical connection between a DC power source and a jump start post, said jump start circuit comprising: an electromechanical switch configured to be coupled between said DC power source and said jump start post, said switch having a closed state and an open state; a resistive element coupled between said DC power source and said jump start post, said resistive element being positioned in parallel with said switch; means to monitor the voltage of said DC power source and said jump start post; means to process the voltage measurements; means to close said switch based on detection of a first predetermined condition, said first predetermined condition comprising at least one of said voltage of said DC power source and said voltage of said jump start post being within a predefined range for a predefined period of time; and means to open said switch based on detection of a second predetermined condition said second predetermined condition comprising at least one of said voltage of said DC power source and said voltage of said jump start post exceeding a threshold value for a predefined period of time.