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Why is the Tesla charging sound extremely loud?

2 Answers

BarrettAnn

07/29/25 7:20am

Tesla charging produces a discharge sound. The Tesla coil is a device that uses a transformer to step up ordinary voltage, then discharges from the terminal via two-pole coils. In simpler terms, it's an artificial lightning generator. Here's an extended introduction: 1. Introduction to Tesla coil: The Tesla coil (also called a Tesla coil) is a simple-structured, high-voltage generator with super arc-pulling capability, invented by the famous American physicist and inventor Nikola Tesla. 2. Composition of Tesla coil: It consists of an induction coil, two large capacitors, and a mutual inductor with only a few turns in the primary coil. This device can generate high-voltage current with very high frequency, but the current of this high voltage is extremely small and does not produce significant physiological effects on the human body.

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McVincent

08/12/25 10:39am

When driving my Tesla, I noticed that loud charging noises are quite common, mainly caused by the cooling system working at full capacity. Especially during fast charging, the battery needs to quickly dissipate the heat generated during charging, leading to high-speed operation of fans and water pumps, which produces significant noise. Normal cooling sounds are like a whooshing airflow, not particularly harsh. However, if the noise is extremely loud, like a tractor, it could be due to aging fan blades, foreign objects stuck in the system, or excessively high ambient temperatures causing the cooling system to overwork. I recommend first checking around the charging port for any leaves or dust blocking the fan, and try to charge in shaded, well-ventilated areas whenever possible. During hot summer days, fast charging noise tends to be louder, and switching to slow charging can help alleviate this. Persistent abnormal noises may shorten the fan's lifespan or even affect battery temperature control, so if the noise remains excessively loud, it's best to visit a professional service center for diagnostics, checking the fan and coolant status to ensure optimal cooling performance. The battery management system is designed intelligently, maintaining the right temperature is crucial for prolonging battery health, but getting used to the louder noise is still necessary.

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