19V 3.42A notebook can use 20V 4.5A power adapter?
It is best not to use, the voltage is too large easy to burn the power, damage to the notebook, it is recommended to use the same voltage.
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19V3.42A notebook is possible with 20 volts 4.5A power adapter, but is not recommended for a long time to use, so as to avoid the high voltage and current is too large, causing the computer fever, burn the battery or computer motherboard.
Computer with electrical appliances need to pay attention to the following two points:
First, the charging voltage, the charger charging voltage and the original or slightly higher.
Second, the charging current to the same with the original charger or slightly higher, up to no more than 0.5 amps.
Yes, the high power problem is not big, low to die
