Charge from 65w power bank at 19V, 3.42A

[rdskn]

If I charge HP laptop with 65W Power bank at 19V, 3.42A when the specs require 65W 19V 3.33A, will it work ok and is there a risk of damage if done continuously for year or more?

Will the voltage is slightly lower, the current is higher. Is that likely to damage laptop.

Are there voltage spikes from such power banks that can damage laptop? Or do they have circuitry to prevent that?

I saw youtube by Geat Scott who said his laptop had regulating chips connected to the power in whose specs allow for voltages upto 28V.  Is that true for HP laptops?

[Huffer]

Its the voltage that is critical so 19v 3.42 amp will be fine. I have not heard of spikes from power banks. They are already turing AC into DC so there is circuitry that should smooth out any incoming spikes. Its not the laptop that has regulators allowing higher voltage its the power brick. I would stick with a power supply that puts out the same voltage as the power adapter provided with the laptop and preferably use the provided HP adapter. 

[rdskn]

Just to check, the power bank is 19V but HP charger is 19.5V.  So the 0.5V undervoltage and 0.1A over current vs spec will power laptop and not cause long term damage.  The power bank delivers 65W but slighlty lower voltage and higer current.

Asixxsix Portable Charger Power Bank, 65W 30000mAh PD Fast Charging Power Bank with 12V 15V 19V DC Output, 5V USB Output & Type C Output, Aluminium Alloy Shell, for Phone PC PSP MP3 MP4

[Huffer · Accepted solution]

I wondered why the math did not work out. Watts is volts x amps so if the volts are the same and the watts are the same so should the amps be. You have clarified we are talking about a 19v vs. a 19.5 v power supply. You want to push the envelope here... a half volt may not seem much but I am not going to go out on a limb and say it is going to be fine. You will not get any reputable technician to do that.