12v to 19v and some other question
I'm pretty new to all this car customizing stuff.
A month ago I put in a active subwoofer and a radio.
that went quite well,and was fun to do.
Now I have an old laptop that has a busted keyboard and i was wondering how to install this in a car.
I've nosed around the internet/forum but there is no real guide to this, and seeing as everylaptop is probably different i can assume why.
my big question is: Is there a 12v to 9v adapter.
I think its a bit lame to stick a sigaret-lighter converter that goes from 12v>230v>19v.
I also wonder if it is possible to put in a secound battary,as a reserve one(still dont know why cars only have 1 battary), that loads when driving but only unloads into the laptop.
and are there ways to unatach and extend the laptop screen(using the same powersource, ofcoarse) and attach it somewhere else (thinking of putting it on the viser) that way can use the laptop screen, and save me a screen-purchase and another powersource problem.
I dont know if i'm looking at this the right way, but those seem to be the problems that come in mind.