Letsgosailing wrote: > It has to be at least 2 amps (or 2000mA) to provide the laptop with enough > power. > Yanni Marinated > S/V Princess Thalia > Hamilton-Fifty Point @H3 > N 43.13.406 > W 73.37.431 > www.yannismarine.ca > ----- Original Message ----- > From: "Al Thomason" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Sunday, June 29, 2008 11:06 AM > Subject: Re: [Liveaboard] 12v computer > > > >> Most laptops now adays seem to spec something other then 12v in, like >> 14-17v. But what ever it is, the power supplies inside the Laptops are >> designed to run with a rather narrow range of voltages. I would be wary of >> trying to undervolt a laptop, or any other electronic device. >> >> One could use the AC Inverter --> DC Adapter rout. This is rather costly >> (though many folks already have an inverter), and very inefficient being >> that there are two conversions involved between the battery and the >> laptop. >> >> There are also DC-DC converters, Targus being a popular brand. That is >> how >> I am powering my laptop, through a Targus adapter. >> >> If you have a device that is speced for '12v', then a great way to go is >> search for an old HP 12v Car adapter. This is not just a wire, but a >> proper >> DC-Dc converter. Search Ebay for HP part number "F1064A". They often can >> be found for under $15 including Shipping. These are great DC-DC converts >> and produce a solid 12v out with a wide range of in (ala 10v --> 16v). I >> use one of these to power my LCD display. >> >> I am a bit disappointed in the Targus adapters, they do not hold up as >> well >> as I could like during a voltage dip (ala when my air compressor kicks >> in). >> The HP adapter seems rock solid. Of course, just leaving the battery in >> the >> Laptop solves any voltage dip issue :-) >> >> -al- >> >> _______________________________________________ >> Liveaboard mailing list >> [email protected] >> To adjust your membership settings over the web >> http://www.liveaboardnow.org/mailman/listinfo/liveaboard >> To subscribe send an email to [EMAIL PROTECTED] >> >> To unsubscribe send an email to [EMAIL PROTECTED] >> The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ >> >> To search the archives >> http://www.mail-archive.com/[email protected] >> >> The Mailman Users Guide can be found here >> http://www.gnu.org/software/mailman/mailman-member/index.html >> >> > > > -------------------------------------------------------------------------------- > > > > That varies with the laptop. Both my Dell and my Compaq are 3.5 amps.
Jim _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
