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 > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG. Version: 8.0.101 / Virus Database: 270.4.3/1524 - Release Date: 28/06/2008 7:42 PM _______________________________________________ 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
