Compatible power bank solution for HP pro book 440 G&

[RichardDP]

I'm trying to find out if my HO Probook 440 G7 and be charged via the USB C port by a powerbank.

The symbols at the port show  SS, trident and DP. As I understand it, DP is Display port, not Power Delivery.

According to the Quick Specs guide, the Probook has a  "USB 3.1 Type-C™ Gen 1 (Power delivery, DisplayPort™ 1.2)"

I need to be able to charge my Probook off-grid (as in a field), away from any AC or vehicle power source and ideally I'd like to use a portable powerbank.

I'm in the UK and I can't get a definitive answer from any supplier!

[Paul_Tikkanen]

According to chapters 1, 2 and 3 of the service manual, your notebook supports charging via the USB-C port with a 65W USB-C power adapter.

Maintenance and Service Guide HP ProBook 440 G7 Notebook PC

HP only offered wall mounted USB-C adapters.

See chapter, 3 page 25.

[RichardDP]

Thank you Paul! Does the powerbank also have to also be 19.5v (3.33A) or is that given in that 19.5 x 3.33 = 65? Sorry if this is an obvious question, but Physics lessons are a distant memory for me

[Paul_Tikkanen]

You're very welcome.

The parts list just indicates 65W.

it does not specify voltage, amperage, etc.

I found the HP 65W USB-C charger part number listed in the manual on eBay and it has the complete specs:

HP L32392-001 20V 3.25A 65W Genuine Original AC Power Adapter Charger | eBay

Output Current  3.25 A

Output Watt(s)  65W

Voltage  20V

[RichardDP]

Yes, I'm finding a lot of power adapters, but not many power banks. Do you know if 65w is a minimum requirement or could I use a 100w power bank? There seem to be not that many 65w options

[Paul_Tikkanen]

Unfortunately, that I would not know.