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What are the symptoms of poor battery contact?

2 Answers

LeElias

07/29/25 12:06am

When there is poor contact in the battery, the common symptoms include overheating or sparking at the battery terminals. Poor battery contact in a car can also lead to unstable idling, damage to the car battery, and harm to the vehicle's alternator. It is essential to maintain good contact. Below is some information about car batteries: 1. A car battery, also known as a storage battery, is a type of battery, typically a lead-acid battery. The lifespan of the battery is closely related to the vehicle's driving conditions. 2. Under normal driving conditions without electrical leakage, the battery can generally last for more than three years. When the battery is low on charge, it should be promptly removed and recharged using a charger. 3. Avoid parking the car in open parking lots for extended periods. If the car is not used for a long time, it is necessary to warm up the engine periodically and ensure the battery is fully charged before use.

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StAyla

08/12/25 4:22am

I've encountered battery connection issues several times, especially noticeable during winter driving. The main symptoms include difficulty starting the engine - when turning the key, the car only makes clicking sounds without starting, giving the impression of a dead battery when the battery itself might still have sufficient charge. Another alarming situation is sudden engine stalling while driving, particularly when turning or braking, causing nerve-wracking vibrations. Flickering lights are also a common warning sign, with headlights or dashboard lights fluctuating unpredictably, and even the AC airflow becoming intermittent, indicating unstable current transmission. Additionally, when inspecting battery terminals under the hood, visible corrosion or looseness is often present, with white or green rust around the terminals that feel warm to the touch. Overheating may even produce a burning smell, posing significant risks that require immediate attention. My routine solution involves cleaning the terminals and tightening them, but it's always best to visit a repair shop for a thorough battery circuit inspection. Regular maintenance should include periodic terminal cleaning to prevent dirt buildup. These experiences remind me to pay attention to details to ensure driving safety.

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