Not all laptops run at 19v My old HP (3 years old I think), runs at 12v. My current Asus does run at 19v though.
If the laptop does require more than 12v, have a look in auto electrical places, or just electronics stores that do some auto electrical stuff. Maplin (http://www.maplin.co.uk) over here have laptop power adapters that run off 12v. http://www.maplin.co.uk/search.aspx?MenuNo=12245&FromMenu=y&doy=8m7 they even go as high as 120watt, which i'm surprised about. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brian Weeden Sent: 08 July 2008 18:00 To: [email protected] Subject: Re: [H] Running laptop of DC But that's a DC to AC to DC conversion and going to lose a lot in the conversions. Generate quite a bit of heat too. Best thing would be to find a PSU that can feed off 12V DC. I did that way back in 1998 when I put a computer in my car to play MP3s. Wasn't all that expensive, just a bit hard to find. Not sure if the same thing exists for laptops. ---- Brian On Tue, Jul 8, 2008 at 12:53 PM, Gary VanderMolen <[EMAIL PROTECTED]> wrote: > Unless he can regulate that DC to the exact voltage (18.5-19.5) required > by the laptop, it would be safer to get an inverter and use that to feed > the AC adapter that came with the laptop. > > Gary VanderMolen, MS-MVP > > -------------------------------------------------- > From: "Thane Sherrington" <[EMAIL PROTECTED]> > > I have a person who is off-grid and wants to run his laptop off the DC >> power he produces. Is there a device that will let him bypass the power >> adapter that comes with the laptop to do this and is it recommended? >> > >
