Laptop external power from batteries (DC/DC)

[Bill McGonigle]

On Aug 18, 2008, at 18:24, Ben Scott wrote:

>   Someone brought up the idea of powering a laptop from DC sources,
> rather than the traditional AC power bricks.  This is strictly about
> external power, not the laptop's built-in batteries.

I'll admit to it and just mention here that it came up in the context  
of doing linux demos in the wild, so it's not especially off-topic.

I've since found this guy:

   http://store.mp3car.com/Carnetix_CNX_P1900_DC_DC_Regulator_p/ 
pwr-010.htm

which looks promising (my laptop is also 19VDC).  I'd need to  
repurpose a power cord.

I've tried doing audio recording with my laptop running off of the  
car with an inverter and the electrical noise ruined the effort.  It  
would be nice if this worked.

But there are actually folks on this list who understand these  
things, so I'll stop and listen now.

-Bill

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