car battery

[MichaelK03]

https://www.amazon.com/ExpertPower-EXP12180-Rechargeable-Battery-Bolts/dp/B00A82A3RK/ref=sr_1_25?keywords=10+hour+rechargeable+battery&qid=1556123729&s=gateway&sr=8-25

 

Can I run my pc of that for a few hours before I would need to recharge it. I have a 450 watt power supply I think and I would get one of the things that got jumper cable type clips that go to a normal plug in.

[3 Lions]

Why? 

[Spotty]

No. Not without an inverter. Computer PSUs run off mains AC 110-240V power and won't work with a 12V DC car battery alone.

[MichaelK03]

12 minutes ago, LinusTechTipsFanFromDarlo said:

Why? 

I got stuff happening and im gonna need a alternate way to power my pc 

[3 Lions]

Just now, MichaelK03 said:

I got stuff happening and im gonna need a alternate way to power my pc 

Well unfortunately a car battery won't work as @Spotty said.  

[MichaelK03]

1 minute ago, LinusTechTipsFanFromDarlo said:

Well unfortunately a car battery won't work as @Spotty said.  

do you know of any other ways that are some what inexpensive I have looked at generators and solar panels a generator might work but they are loud and expensive.

[3 Lions]

4 minutes ago, MichaelK03 said:

do you know of any other ways that are some what inexpensive I have looked at generators and solar panels a generator might work but they are loud and expensive.

To power a desktop PC you've only got one option and that is to use the main supply in your house, otherwise you should get a laptop but even then to charge the battery you need to be plugged into the mains. 

Edited April 24, 2019 by LinusTechTipsFanFromDarlo

[Spotty]

8 minutes ago, MichaelK03 said:

I got stuff happening and im gonna need a alternate way to power my pc 

What sort of conditions are you looking at? Camping for the weekend? Take a laptop, tablet, or phone... Or simply go without and enjoy nature.
Or more along the lines of being homeless? In which case then sell the PC.

[MichaelK03]

5 minutes ago, Spotty said:

What sort of conditions are you looking at? Camping for the weekend? Take a laptop, tablet, or phone... Or simply go without and enjoy nature.
Or more along the lines of being homeless? In which case then sell the PC.

im 16 and my parents are trying to limit my to 2 a few hours a games a week that my just sound like im overreacting but I have put over 2000 dollars in that pc and im not going to let then do that 

[Spotty]

1 minute ago, MichaelK03 said:

im 16 and my parents are trying to limit my to 2 a few hours a games a week that my just sound like im overreacting but I have put over 2000 dollars in that pc and im not going to let then do that 

lol...
Here you go.
 

 

[MichaelK03]

3 minutes ago, Spotty said:

lol...
Here you go.
 

 

yeah no ill build a small hydro dam in the creek first 

[Inzelux]

Unless you're very tech savy, I doubt there is a "easy" solution for you out there.

Theoretically, if you get a "good enough" car battery, it should be possible to operate your PC off of it, as nothing in a computer needs current larger than 12Vs, BUT

 

You need an inverter which can convert the 12V electricity to 110-230V which your power supply needs to function.

OR

You need a power-supply which "natively" will accept 12V electricity, which with some electrical competence, should be possible to solve with some wiring and splicing into a socket which the PSU will accept. (Disclaimer: I do not know if this actually works, I guess you'll have to look into overall capacity provided pr. port on the output side of the PSU.)

 

 

 

With that said though, I do not know for how long a single "general use" 12V car battery would last with a 2000USD system connected to it. 

Half an hour, max, maybe? Perhaps someone with more electrical insight could provide some estimates, as I do not know how current conversion affects performance / power draw.

 

 

Honestly, I would probably reccomend you to sort a deal out with your parents. They're most likely right about you playing too much video games.. 

Edited April 24, 2019 by Inzelux
wise words..

[MichaelK03]

28 minutes ago, Inzelux said:

Unless you're very tech savy, I doubt there is a "easy" solution for you out there.

Theoretically, if you get a "good enough" car battery, it should be possible to operate your PC off of it, as nothing in a computer needs current larger than 12Vs, BUT

 

You need an inverter which can convert the 12V electricity to 110-230V which your power supply needs to function.

OR

You need a power-supply which "natively" will accept 12V electricity, which with some electrical competence, should be possible to solve with some wiring and splicing into a socket which the PSU will accept. (Disclaimer: I do not know if this actually works, I guess you'll have to look into overall capacity provided pr. port on the output side of the PSU.)

 

 

 

With that said though, I do not know for how long a single "general use" 12V car battery would last with a 2000USD system connected to it. 

Half an hour, max, maybe? Perhaps someone with more electrical insight could provide some estimates, as I do not know how current conversion affects performance / power draw.

 

 

Honestly, I would probably reccomend you to sort a deal out with your parents. They're most likely right about you playing too much video games.. 

thanks for the reply but I found a pad lock that I will use on the breaker box that my dad cant cut through so I got power figured out.

[Princess Luna]

Not without serious modding... you need a common power bank or even better a laptop.

[mariushm]

No, you can't use a car battery because car batteries are "designed" for short burst of lots of power, like turning on the engine.

While car runs, the battery is basically almost not used...car's alternator produces electricity.

 

You can use batteries optimized for sustained / continuous discharge, those used in UPSes.

They're often called VRLA or sealed/ maintenance free batteries ... here's a bunch of them at a distributor: https://www.digikey.com/short/ppd0md

 

you can't power pc straight from battery, you need a device called INVERTER which converts 10..14v DC from your battery into 110v AC or 230v AC the computer power supply expects.

This conversion is not perfect, maybe 85-90% efficient so a small part of energy is just lost as heat.

 

Anyway... let's say you go with a battery from link above, say this one: https://www.digikey.com/product-detail/en/panasonic-bsg/LC-R127R2P/P078-ND/12538

see datasheet on page there: https://na.industrial.panasonic.com/sites/default/pidsa/files/panasonic_vrla_lc-r127r2p.pdf

and you have a nice chart there :

so let's say your pc consumes 100w .. this means the inverter will consume around 110-120w to produce those 100w for pc.

you know the voltage on battery will be between 10v and 12v ... so 120w / 12v = 10A

So you go on x asis at 10 and look up where the 40c line intersects and then you look to the left and you get the estimated time...

basically chart says this battery, if pc consumes 100w all time like an incandescent lightbulb, will completely discharge in less than 30m

of course ps won't consume exactly 100w all time, may only consume 50w or 30w ...but this gives you a starting point.

9You can use one of those cheap power meters on amazon to figure how much your pc consumes in an hour and then use that as average power consumption

for ex your pc consumed 0.2kwh in 1h ... that's 200w ...so average of 200w/12v = n A

 

[DeaconFrost]

1 hour ago, MichaelK03 said:

 im not going to let then do that 

If they own the house you live in, then turning 18 and moving out might be your only option.  At 16 years old, your parents call the shots.

[MichaelK03]

16 minutes ago, DeaconFrost said:

If they own the house you live in, then turning 18 and moving out might be your only option.  At 16 years old, your parents call the shots.

unless I have a padlock they cant cut though my dad might kick me out but my mom wont let him so im covered there