Notebook power adapter selection method

1, choose a good brand:

     The principle is to choose the same type of brand, if not, it can only find other brands. Now many of the laptop online power adapter sold are cut corners of substandard products, normal use should be no problem, in the event of an accident will burn your laptop, save dozens of pieces but burn thousands of notebook worth the candle. (Cut corners, the common practice of chaos standard power, such as the actual only 19V3.42A, but the standard 19V4.74A, this will lead to charging is very slow, or even damage the battery and laptop, there are some protection removed, this more horrible, there Accidentally burn the laptop.)

    I suggest you ample funds, you can buy a professional brand notebook power adapter (that is, only the professional laptop charger brand, not what the power to do that kind of professional-brand products only Will cause damage to the battery and laptop, but also advanced protection circuit.) Such as outeccbattery and so on.

2, distinguish clearly use:

     Home and office notebook power adapter used to sell a home to buy (AC), the car with a laptop power adapter, buy a car, you want to use the aircraft on the basis of the car On the plane with a plane on it. At home, in the car, in the airplane, all want to take care of, buy a combo, or triple. However, if you do not want to have multiple weights in your computer bag, you can put one at home, one in the car and one in your office so that you do not have to bring it in, plug it in and plug it in, .

3, distinguish between voltage, current and interface

     Look at the original laptop which brand, the original charger behind the label is written on the number of V, how many A (generally written in OUTPUT behind), the charger connector is round or square, or porous, Do my heart probably a few, will not buy the wrong, or even fooled.

     Adapter output voltage and laptops are the best voltage required for the same, if different, then as close as possible laptop voltage, control within ± 5% error, this is because the laptop inside the regulator circuit generally have margin design , When the input voltage changes within a certain range, can work normally and stability; beyond this range, the voltage is too low, the computer may not work even unstable lighting machine; voltage is too high, the computer may burn the regulator circuit. Such as an Acer notebook, which requires 15V, 3.36A input, but with the IBM 16V, 3.36A adapter can be used with it properly.