Laptop power supply 20V 3.5A can use 20V 4.5A power adapter Mody, what impact?
The current will be great ... ... a long time on the bad
It's ok. As long as the voltage is appropriate on the line. Current value refers to the maximum current that can be output. How much depends on your computer. Or, with a big no harm, can only be better, if you can use a small, but a little longer charging time.
can.
For a constant voltage power adapter, the following requirements can be replaced:
The replacement of the new power adapter output voltage is the same as or similar to the output voltage of the original power adapter.
Replacement of the new power adapter maximum output current is not less than the original power adapter maximum output current.
Replacement of the new power adapter with the original power adapter interface definition and shape the same.
Replacement of the new power adapter Other non-major electrical performance indicators, not less than the original power adapter of the corresponding indicators.
Notebook original power adapter nominal rated current of 3.5A, indicating that the laptop itself does not exceed the input current of 3.5A, for the rated current of 4.5A power adapter, the drive is no problem in this load.
