will my laptop still work if i buy a new adapter with 0.5v less volt output, but same input?

Question

okay, so my laptop lead adapter is going, and i need a new one

the one im currently using for my laptop says
"input 100-240V 50-60hz 1.7A"
and "output 20v 3.25 A"

but i have had a look on ebay and though i CAN find ones witht he same input, i can't find any that go up to 20v, usually around18-19.5v for output, are the highest rating i can find

so i was wondering if i bought one that was 18v, 19v or 19.5v output and 100-240v input, would it still work?

please help me, i am desperately needing a new lead and i cant find any info anywhere. thanks for you're time.

Answer 1

Input voltage standard for North America is 110 VAC 60 Hz.
The ouput amps are more important than the exact voltage.
Voltage is nominal, & will be reduced internally anyway.
So get the closest value that you can.
Just make sure the polarity & connector are the same.