Why Can't the Jump Starter Start the Car?

As a convenient car rescue tool, the jump starter can help when the car is difficult to start and achieve emergency starting. However, many people will encounter the situation that the car cannot be started when using the emergency starting power supply. So, what exactly causes this problem?

Power supply problem

Low power: Emergency starting power supply is low and cannot provide sufficient starting current.

Jump starter failure: The jump starter itself has circuit problems or battery performance degradation.

Connection problem

Poor connection: The jump starter and the car battery are not connected firmly, or the contact is poor, resulting in the inability of current to flow.

Improper operation: The vehicle is not started quickly after connection, and the power supply is lost; or the negative connection of the battery is not removed, resulting in the inability to start the battery after the power is replenished.

Car battery problem

Battery power failure: The car battery has not been used for a long time or is aging, the power is seriously insufficient, and the emergency starting power supply cannot provide enough power.

Battery damage: The battery may be damaged due to over-discharge, sulfation, etc., and cannot accept charging or store power.

Other issues

Insufficient starting current: The jump starter starting current is not enough to match the vehicle displacement, or the low temperature requires a higher starting current.

Engine failure: The engine has a mechanical or electrical failure and cannot start even if the power supply is sufficient.

Power management module failure: The power management module fails, preventing the emergency power supply from starting.

In summary, when the car emergency starting power supply cannot start the car, you can check the power supply itself, the connection method, the car battery and other related factors to find out the problem and solve it in time. If the above methods cannot solve the problem, it is recommended to contact a professional car maintenance personnel for inspection and repair. In order to ensure that the critical moment can be started smoothly and maintain the charging needs of daily electronic devices, we should choose products with good reputation for performance and durability. I recommend our YD products, 12V Jump Starter has good compatibility and effect, which can well meet our daily needs.