Question Correct AC adapter replacement for HP EliteBook 8470w

[jords.fjords]

Yeah I know it's a laptop maybe here somebody knows better about voltage and etc.

So, I have this kind of old laptop
https://support.hp.com/us-en/document/c03414602

for which I'm searching a new adapter but I'm confused wth the different voltage numbers.

In the link at section "Electrical specifications" it says 18.5V but at the section "Power specifications" it says 19V
Which is the right one?

And I guess it's a 90W adapter or 65W?
Input AC current 1.5A?

So maybe someone could help me the right power/current/voltage to look at when searching for a new adapter for this computer. (input/output)

Thanks!

 

[helpstar]

Do you have the old ac adapter? Have a closer look at this, there should all values be written on it.

18.5V or 19V is not that important, but I think 19V is the usual value.
If you are not sure if it needs 65W or 90W, just get the 90W so it will have enough power either way. All other values are not important.

The manual states that both specified ac adapter versions will work:
Operating voltage and current
18.5 V dc @ 3.5 A - 65 W –
or
19.0 V dc @ 4.74 A - 90 W

Would get the 90W anyways

 

[jords.fjords]

Do you have the old ac adapter? Have a closer look at this, there should all values be written on it.

18.5V or 19V is not that important, but I think 19V is the usual value.
If you are not sure if it needs 65W or 90W, just get the 90W so it will have enough power either way. All other values are not important.

The manual states that both specified ac adapter versions will work:
Operating voltage and current
18.5 V dc @ 3.5 A - 65 W –
or
19.0 V dc @ 4.74 A - 90 W

Would get the 90W anyways

Thank you for your answer!
No, sadly I don't have the original. Then it would be no problem.
Where did you saw 4.74 A ? What manual?

Anyways, that's a relief to finally know

 

[Phillip Corcoran]

Original Adapter Model: HP 90W Smart AC Adapter.

OEM replacement from HP:

UK: https://store.hp.com/UKStore/Merch/Product.aspx?id=H6Y90AA&opt=ABU&sel=ACC

USA: https://store.hp.com/us/en/pdp/hp-90w-smart-ac-adapter-p-g6h43aa-aba--1

 

[helpstar]

It was written in the maintenance and service guide:
https://content.etilize.com/User-Manual/1025670901.pdf

 

[jords.fjords]

Original Adapter Model: HP 90W Smart AC Adapter.

OEM replacement from HP:

UK: https://store.hp.com/UKStore/Merch/Product.aspx?id=H6Y90AA&opt=ABU&sel=ACC

USA: https://store.hp.com/us/en/pdp/hp-90w-smart-ac-adapter-p-g6h43aa-aba--1

Thank you for your answer