What are the causes of Volkswagen battery drain?

1 Answers
DeAdelyn
07/29/25 4:28pm
Here are the reasons for Volkswagen battery drain: Battery short circuit or aging: When the battery has been used for a long time, especially in some cars that are still using the original battery after four or five years, the active substances inside the battery will gradually detach, causing short circuits in the battery plates. This leads to self-discharge and battery drain, which is the most common type of leakage phenomenon. Damage to vehicle electronic equipment: There are countless sensors, wiring harnesses, and electrical appliances in the car. When these electronic components malfunction, especially if there is grounding or short-circuiting in the internal circuits, it can cause battery drain and result in the battery losing power.
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