What are the symptoms of poor battery contact?
1 Answers
Symptoms of poor battery contact in a car include overheating battery terminals or sparking. Poor battery contact can lead to unstable idling, damage to the battery, and may also harm the generator. The main grounding wire from the battery to the car body is a thick power ground wire, usually connected to the car frame, which carries the current flow from various parts of the vehicle. Additional information is as follows: 1. Cause: Due to the battery terminals being prone to corrosion and sulfation, this grounding wire often has poor contact with the battery. Poor engine grounding can result in the starter and generator not working properly, and sensors failing to detect accurate signals. The spark plugs may not produce strong sparks, directly affecting the engine's power. Loose grounding points can also cause sparks, and the resulting arcs can damage components. 2. How to determine poor battery contact: From the positive terminal of the battery, one wire is directly connected to the starter, and another is connected to various electrical devices via a current-limiting chip and fuses. If the starter can operate but most electrical devices do not work, it may be due to a blown current-limiting chip. However, if the entire electrical system loses function, it could be due to poor contact at the battery terminals or loose cables.
