Advice on a power bank for a HP spectre x360 15"

[PhilippeR1]

Hi,

I have just bought a spectre x360 15-eb1006nf. The overall impression is rather good but I am not entirely satisfied with the battery and I'd like to buy an external power bank just in case.  Before I do, I'm trying to find out two things and I hope that someone could point me in the right direction.

I'm considering a 100W PD USB-C power bank (Krisdonia AC Powerbank Chargeur Portable 27000mAh 130W).

But I want to make sure it will work and I don't know :

- if my spectre can be charged by its USB-C port (and I don't know where to find the information, I tried but to no avail) ;

- if the output power of the power bank will be sufficient, either through the USB-C port or through the DC port, given the spectre adaptor provides 135W (when fast charging) ; note that I wouldn't care about fast charging when the computer would be plugged to the power bank.

Could someone help me, please?

[Huffer · Accepted solution]

Your USB-C ports include Power Delivery so the laptop can be charged by the USB-C port. However, the delivered AC adapter is 135w which is quite powerful and is going to mean you need a really large powerbank. You already suspect that, I see. Best course is not to run the laptop on the powerbank power unless it is 135w +/- or more, but plug it in with the laptop off to charge the battery. The Krisdonia device you ask about is likely to be able to charge the battery and run the laptop while powered on. 

https://support.hp.com/hr-en/document/c07033777

[PhilippeR1]

Thank you very much for your answer.

[PhilippeR1]

Just for the record, I bought a battery with a USB-C PD 100W port to charge my laptop and it works ! I can even recharge it while it's on (though admittedly, I don't push it, I just browse the wed, watch netflix and / or use libreoffice.