My notebook ac adapter seems to be faulty, Is it safe to replace it with another ac adapter?

[HandsomePlate40]

Hello,

I opened my notebook today and plugged it in and then a notification showed up telling me that my adapter isn't working properly, after that I ran HP diagnostics on windows and the result was FAILED , Then I ran it in the UEFI but it passed??

This is just confusing me and the first prompt didn't appear again after a few restarts and disconnecting the charger multiple times. If the ac adapter is actually faulty is it a problem if i use another one? The "faulty" ac adapter had an output of:

19.5V 3.33A  65W

The new one has : 19.5V  2.35A  45W

Also if i use the new one will it slow down my computer? Because I use Boost Converter to speed up my notebook

Thanks!

[banhien · Accepted solution]

@HandsomePlate40 

HP Elitebook 820 G3 is a series of many different models/products. Your machine has 65W AC Adapter, probably you need a 65W for its configuration. 45W might be OK but it may not charge your machine when in use. Normally machine itself will tell you that is OK or not.

Regards.