In a message dated 2/5/2007 8:05:43 PM Eastern Standard Time,  
[log in to unmask] writes:

I am  considering purchasing a higher-end notebook computer.

Two of the  applications that I may use it for are digital imaging on and 
control of  my telescope in a remote area.

I would like to know if notebooks, for  the most part, all use twelve volt 
input.  (A transformer plugged  into the wall and twelve volts dc entering 
the computer.)

If this  is the case, then I could use the same automobile battery that I use 
to  power the telescope to also power the notebook.

Is this likely to be  possible, or do most notebooks use their own unique 
voltages?  Which  brands, if any, are likely to use twelve (or six or 
eighteen)  volts?

TIA,

Dean Kukral 



Dean,
I believe even if the voltage is 12 volts,  the amperage is what would  be 
critical.  Since you have the car battery available I would look at  power 
inverters available at most electronics stores and home supply stores  starting at 
around $20 and going up depending on how much power drain will be  required. 
That way you could just use the laptops supplied hardware and not risk  damage 
from an improper votage/amperage.
 
 -Phil Williams-

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