Jumper cable integrated starting power supply device, and starting and igniting method

A jumper cable for a starting power supply, comprising:

• input terminals configured to be connected with a battery portion of a starting power supply;
• output terminals configured to be connected to a load;
• and
• a controlling device comprising;
• a main charging circuit connected in circuit between the input terminals and the output terminals, the main charging circuit comprising at least one switch;
• a bypass charging circuit connected in circuit between the input terminals and the output terminals, the bypass charging circuit being configured to output an output voltage;
• and
• a microcontroller connected to the main charging circuit and the bypass charging circuit,
• wherein the microcontroller is configured to output a driving signal when it is detected that a relative relationship between the output voltage and an input voltage of the bypass charging circuit meets a preset loading condition, and the main charging circuit is selectively switched on based on the driving signal of the microcontroller and connects the battery portion to the load.

A starting power supply device for a vehicle, comprising:

• a battery portion;
• output terminals configured to be connected to a vehicle or vehicle battery;
• a switching circuit connected in circuit between the battery portion and the output terminals;
• a bypass module connected in circuit between the battery portion and the output terminals;
• and
• a first microcontroller connected to the switching circuit and the bypass module,
• wherein the first microcontroller is configured to output a driving signal based on an output voltage of the bypass module and a voltage of the battery portion, and the switching circuit is selectively switched on based on the driving signal of the first microcontroller and connects the battery portion to the vehicle or vehicle battery.