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
