Hey everyone,

This is my first post and I'm working on a little hobby project to see how portable I can make this little Itx PC I have. Around 120W
The external Power supply converts AC to 12V 10A.
I have a power bank that has 50000mAh and It Has 6 Output Ports. One 20V/3A for Laptops, one 12V/2.5A for Digital Cameras, Two 5V/2.1A and Two 5V/1A For Most of Smart Phones

So in my limited understanding of electricity I was thinking that the problem would be the pc draws more amps than the power bank can handle. Can I use the 20 V output and use a DC/DC converter to raise the amps closer to 10 thus dropping the Volts? Is a step up converter a possibility 'not sure how they work just seen them on amazon'

If it helps the power bank is a ''MAXOAK 50000'' and the power supply is ''picoPSU-150-XT + 102W Adapter Power Kit''
It wouldn't let me post the Amazon links

 

I also found this if it is an option.

''
DC to DC 4.5-30V to 1-30V 12A Buck Converter Step Down ''

 

Converters are ok as long as you understand that you can't use more wattage than the battery or psu providing it, so in your requirement 20V@3A is 60W, so you can convert it to 10V @6A or 40V @1.5A, that's assuming it's a 100% efficient converter, at best it's probably 95%.