is there a powerbank that could power an mini pc that uses 400 watts at max

[Ihobonu3]

The title says it all

[5x5]

For a minute or two? probably. Then it would erupt in flames.

[Moonzy]

2 minutes ago, Ihobonu3 said:

The title says it all

at some point a "powerbank" would be a battery box

you could look at some battery boxes with 12v 100Ah batteries (weights 30KG/65Lbs) and a 500W inverter

 

and that should power your pc for... -maths-

about 2.5-3h, assuming high conversion efficiency

[Guest]

You mean some sort of uninterruptible power supply?

 

[Bombastinator]

The phrase “power bank” can be vague.  If you mean something that can fit in your pocket or even on your back see @5x5’s response.

 

Do you mean a UPS?  They’re generally somewhere between the size of a shoebox and a refrigerator.  Used to use deep cycle lead acid batteries though there are those that use liion.  They’re rarely good for more than a few hours.

[jaslion]

8 minutes ago, Ihobonu3 said:

The title says it all

A ups or a battery box with appropriate inverter could do that. Not for long tho a couple hours at most. If you want to game or something away from a power socket a laptop + ups or battery box would do you a lot better.

[NZKshatriya]

Tesla powerwall.