Really stupid theoretical project I would like to try

[coolxm]

QWell this may sound stupid but I would like to try it, 

So I was thinking of building a pc but my dad wants it to be portable so I tought of the bright I Dea to build it in a backpack like with the pc water cooled with radiators on the outside and the battery low and close to the back (cause ergonomics) but what battery should I use? It should be able to stay on for maybe 4 hours. That's really the only problem I have, I already tought about the pc itself, I can put it in a console case that ltt used on a stream. Also how much would it weigh

Ps; yes I know laptops exist but this is an experimental thing that I would like to try out

[TheBean]

before i read the laptop part i was literally going to scream laptop to you. 

 

but to answer, you would need a UPS to provide enough wattage to power a desktop pc for 4 hours. those are very heavy. i dont think you can do this.

Edited March 24, 2019 by Saksham

[Meic]

My PC (i7 6700 + 1050TI) pulls ~100W from the wall in normal use.  So for 4 hours you need a 400Wh battery. This does not include screen so let's round up to say 500Wh.

 

A quick google for a 500Wh portable UPS: https://lithiumbatterycompany.com/product/500wh-portable-lithium-ups-power-supply/

According to the specs this is 7.9LB (3.6KG)

[coolxm]

10 hours ago, Meic said:

My PC (i7 6700 + 1050TI) pulls ~100W from the wall in normal use.  So for 4 hours you need a 400Wh battery. This does not include screen so let's round up to say 500Wh.

 

A quick google for a 500Wh portable UPS: https://lithiumbatterycompany.com/product/500wh-portable-lithium-ups-power-supply/

According to the specs this is 7.9LB (3.6KG)

Thx

[coolxm]

10 hours ago, Meic said:

My PC (i7 6700 + 1050TI) pulls ~100W from the wall in normal use.  So for 4 hours you need a 400Wh battery. This does not include screen so let's round up to say 500Wh.

 

A quick google for a 500Wh portable UPS: https://lithiumbatterycompany.com/product/500wh-portable-lithium-ups-power-supply/

According to the specs this is 7.9LB (3.6KG)

https://www.amazon.co.uk/1000W-power-inverter-battery-electricity/dp/B00AEVHTNG this one is cheaper would this one work also? 

[UrbanFreestyle]

6 minutes ago, coolxm said:

https://www.amazon.co.uk/1000W-power-inverter-battery-electricity/dp/B00AEVHTNG this one is cheaper would this one work also? 

no that is a power inverter to change battery 12v to the correct voltage for mains power. you would need that PLUS a battery.

[coolxm]

16 minutes ago, UrbanFreestyle said:

no that is a power inverter to change battery 12v to the correct voltage for mains power. you would need that PLUS a battery.

OH well ok