Choose the right brand
Many are cutting corners online selling substandard products, the normal use of what should be no problem, once an accident occurs it will burn your laptop, saved tens of thousands of pieces of the block was burnt notebook harm than good, (jerry common there are standard practice chaotic power, such as real only 19V3.42A, AC Adapter For Toshibabut standard 19V4.74A, this will lead the charge very slowly, or even damage the battery and notebook computers. still put some protection removed, this is more terror, unexpected will burn off the laptop.)

Under the circumstances suggest that you have sufficient funds, you can buy a professional brand Toshiba PA3755E-1AC3 AC Adapter (that is, only a professional brand for notebook charger, rather than what kind of power do so single-minded brand of professional products for batteries and will not laptop damage, and advanced protection circuitry.) such Icharger, Acharger (AATUU brand), etc. (However, these brands are sold in Europe and America, the domestic retail rarely found)

Points clear purpose
Wants to household and office use to sell a home to buy (AC use),Toshiba PA3755E-1AC3 AC Adapter you want to use the car, you buy a car, you want to use on the plane with a car on the basis of a aircraft head on it. Home, car, airplane, wants to take into account, to buy a combo or triple. But if you do not want a computer bag and more weight, and you can put one in the house, put a car, office, put one, so you can not bring bring, plug to plug go, more convenient, but also to the people around him with .

Distinguish between voltage, current and connector
Look at the original laptop is which brand, the label behind the original chargers to write how much V, the number of A (usually written on the back OUTPUT), charger connector is probably the round or square, or porous, his heart probably do a few, they are not buying the wrong even been fooled.

For instance, your wife is 18.5V 3.5A charger output 18.5V That must buy, as for the current higher than 3.5A all OK. But if your business is best not to 18.5V recommended, although you can charge the special circumstances of emergency can be recharged, a long time will damage the battery and notebook computers. That voltage must be accurate (not the way high or low), the current can be high (but the higher the more expensive).
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