Replacing 19.5v 4.7A instead 19v 4.74A, will it work?

[vodevil17]

My old Acer laptop charger doesn't work. It is 19V, 4.74A, 90W. I have in my house an originale Sony charger 19.5v, 4.7A, 90W. So the differences are that 0.5V and 0.04A. Will it work?

 

[Robert Ban]

Well, from my experience, That 0.5V is withn margain of 5%, but, still if voltage goes up it might burn the charger controller.
Soo, Personally I wouldnt.

 

[vodevil17]

Ok.. This laptop isn't mine. So I just need to check if the charger is the real problem of this laptop. I need to insert and turn on the laptop. After it, I need to reinstall everything. To leave the laptop working for the weekend.

After the weekend because I got to go out my city, I will buy a charger 19v, 4.74a.

Should I risk?

 

[Robert Ban]

For short of checking yes, long term no.
Same for charger of phone, trust me Ive seen it many times.
5V straight vs 5.25-.30V
5v 5 years of use no bulged battery,
5.25-5.3V (this is with margain of 5%), battery gets bulged after 1 year.