Can the electric vehicle charger be dried after getting wet?
3 Answers
The electric vehicle charger can be dried after getting wet, but it must be disassembled to ensure the circuit board and electronic components are thoroughly dried. After drying, let it cool naturally before use. Below are specific details about electric vehicle chargers: 1. Classification of chargers: They can be divided into two main categories based on the presence or absence of a power frequency (50 Hz) transformer. Freight tricycle chargers typically use chargers with power frequency transformers, which are bulky, heavy, and consume more power but are reliable and inexpensive. Electric bicycles and electric motorcycles usually use switching power supply chargers, which are energy-efficient and highly efficient but more prone to failure. 2. Correct operation of switching power supply chargers: When charging, first connect the battery, then plug in the power supply. After charging is complete, first disconnect the power supply, then unplug the battery. If the battery is unplugged first, especially when the charging current is high (red light), the charger is very likely to be damaged. 3. Charger classification: Common switching power supply chargers are further divided into half-bridge and single-ended types, with the latter subdivided into forward and flyback types. Half-bridge chargers are more expensive but perform better, often used in chargers with negative pulses. Single-ended chargers are cheaper and have a higher market share.
I used to have an electric bicycle, and that time when the charger accidentally got wet was really scary. I immediately used a hairdryer to dry the surface for a long time, but when I plugged it in, sparks flew and it almost caught fire. Moisture can seep into the circuit board and corrode the wiring—drying it only treats the symptoms, not the root cause, as residual moisture inside can accelerate the risk of a short circuit. Electronic devices are most afraid of water, especially chargers that handle high currents, as damp environments can easily cause fires or electric shock accidents. Since then, I’ve strictly followed storage rules—never leaving it outdoors in the rain, and immediately stopping use and replacing it if it gets wet. Safety comes first—don’t take chances. A new charger only costs around a hundred bucks, but your life is worth far more. Regularly checking for aging seals is also crucial, and developing good habits can save you from big trouble.
I frequently deal with similar faults. If a charger gets wet, never just blow-dry it casually. Water can seep into precision components and damage the insulation layer. Even if the surface appears dry, moisture may remain inside, which can cause a short circuit or burn-out once high voltage is applied. It's advisable to first disconnect the power and let it air-dry thoroughly for several days. Before testing, use a multimeter to check the circuit's continuity. If any abnormalities are found, consult a professional technician for repair or replacement. This is the proper way to handle electronic devices—otherwise, trying to save money might damage your vehicle or even cause personal injury. For daily storage, choose a dry location, and inspecting the equipment after rainy weather is key to prevention.
