Laptop charger for Lenovo 19V4.74A 90w Power Adapter

Laptop charger for Lenovo 19V4.74A 90w Power Adapter

• The power adapter has a variety of parameters, so you can't use the adapter for charging at will. Before selecting a power adapter, make sure the adapter interface matches the device and the output voltage must be the same as the rated input voltage of the load (mobile device). In the case of active voltage stabilizing elements used in the power supply, the output value is constant even if the mains voltage fluctuates. For example, a small transformer in the market, such as a power supply equipped with a walkman, will not fluctuate the output of the power supply if the mains fluctuate.

• Precautions: 1. Discharge static electricity during cleaning: clean the power supply regularly for the dispenser and charging interface. When cleaning, use a wet cloth, or an anti-static cloth, do not use dry cloth. 2, waterproof and moistureproof: as an electronic product, accidental water or long time not used when exposed to the humid air, will cause varying degrees of corrosion or oxidation of its internal electrical components. 3, anti-fall and anti-shock: the power adapter is actually a fragile part, the internal components can not withstand beating. In particular, do not drop, knock or vibrate the power adapter. Rough handling of the adapter can damage the internal circuit board.
  

• Shenzhen Waweis Technology Co., Ltd. is a high-tech enterprise engaged in r&d, production and sales of notebook adapters. Main: switch power supply, power adapter, charger, LED power supply and other products professional production and processing. The products have passed UL, CE, FCC, KC, PSE, SAA, GS and other certifications. The products produced by the company have perfect protection function, stable performance, safe and reliable. With professional r & d, production and sales experience, the company has accumulated strong technical advantages and rich market resources in the field of power adapters. The company is now able to provide a full range of alternative adapters for the world's major brands of notebook computers.

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