Is this not an excellent product? Power on the road

[Marcos]

http://www.ebuyer.com/customer/produ...128344&_LOC=UK



How are these not more popular? Also makes you wonder, why dont car manufacturers put a power socket or two into a car's interior as standard/option? using this product's technology

[Steve B]

does it not drain your battery something rotten?

[Funkstar]

my god that is cheap. These things used to be £100 - £150.

They are incredibly in efficient. So you don't want to be running them without the engine on.

[Marcos]

does it not drain your battery something rotten?

well i for one wouldn't use it when the engine is not running

but do you reckon it would make an impact even when the engine is running?

[Funkstar]

I'm not sure what kind of power it pulls, but the wiring on most cigarette lighters isn't that thick. Sure it can pump out 140W, but how many amps it it pulling over that 12V outlet? Don't be surprised if you blow a fuse now and then.

Your engine will need to work a bit harder than normal, perhaps not as much as using air con, but it will need to make more power than normal.

[Howard]

I'm not sure what kind of power it pulls, but the wiring on most cigarette lighters isn't that thick. Sure it can pump out 140W, but how many amps it it pulling over that 12V outlet?

11.6a

[Steve B]

P = I * V

[Funkstar]

11.6a

You going to factor in the power loss due to conversion?

It has great big heat syncs on the ides for a reason

[TheAnimus]

well normally the raiting they give on these is how much they take, not how much they can supply. So no.

Plus these set-ups don't actually lose that much power on their own, its more a case of what your connecting them too, then rectifying the signal back to a DC again.

If its for a laptop say, get a laptop power convertor, not something to take it to mains, then down again.

[Marcos]

well normally the raiting they give on these is how much they take, not how much they can supply. So no.

Plus these set-ups don't actually lose that much power on their own, its more a case of what your connecting them too, then rectifying the signal back to a DC again.

If its for a laptop say, get a laptop power convertor, not something to take it to mains, then down again.

whats a laptop power converter?

[Funkstar]

whats a laptop power converter?

The power brick that goes between the mains and the laptop

According to maplin they look to be ablt 80-85% efficient. 100W takes 10A

http://www.maplin.co.uk/module.aspx?...10&doy=1m7#faq

So if you plug in a laptop, you are converting back to DC, and thats only about 85% efficient too. You are best trying to go from 12V directly to 19V (or whatever it is the laptop needs). Direct DC to DC converters are available.

EDIT: here we go
http://www.maplin.co.uk/module.aspx?...=36836&doy=1m7

[TheAnimus]

The power brick that goes between the mains and the laptop

According to maplin they look to be ablt 80-85% efficient. 100W takes 10A

http://www.maplin.co.uk/module.aspx?...10&doy=1m7#faq

So if you plug in a laptop, you are converting back to DC, and thats only about 85% efficient too. You are best trying to go from 12V directly to 19V (or whatever it is the laptop needs). Direct DC to DC converters are available.

EDIT: here we go
http://www.maplin.co.uk/module.aspx?...=36836&doy=1m7

and bingo was his name o

[Marcos]

The power brick that goes between the mains and the laptop

According to maplin they look to be ablt 80-85% efficient. 100W takes 10A

http://www.maplin.co.uk/module.aspx?...10&doy=1m7#faq

So if you plug in a laptop, you are converting back to DC, and thats only about 85% efficient too. You are best trying to go from 12V directly to 19V (or whatever it is the laptop needs). Direct DC to DC converters are available.

EDIT: here we go
http://www.maplin.co.uk/module.aspx?...=36836&doy=1m7

cooooool

[Funkstar]

While i'm on a roll, as most things can be changed via USB these days, how about this little power plug for the car?



http://www.maplin.co.uk/Module.aspx?...219026&doy=1m7

[Tarffie]

Well where else would they draw the power from?

<pedant />

[Marcos]

I strongly suggest not to use any of those products, these will just drain your batteries.

even if they are only used when the car is running/in motion?