Marek, Yeah I was kinda misleading in my native 12v statement. What I meant was that 12v power supplies are often available. 12v cigarette lighter adapters that put out 19v for laptops.
Interestingly though, I did notice today on my laptop that the battery is putting out 12v. It takes 19v from the wall adapter but only 12v from the battery. I feel a jerry rig in the future.... And you're entirely right about the cheapness of a laptop that is a year or two old. I've been picking up these dell rigs (latitude d830) that come used from businesses for ~$100. I've had them for about a year and a half and today just realized that the bios date is 2013! They are really very new (newer when I got them) in the grand scheme of things, but old as far as technology goes. I can trash a ~$100 laptop every 5 to 10 years. We're so close to the point of diminishing returns in terms of what most of us do on a day to day basis. Josh On Nov 20, 2016 12:03 PM, "Marek Dziedzic via CnC-List" < [email protected]> wrote: > Not all laptops are inherently 12 V (some use as high as 19 V). But it is > easy to check. > > > > Laptops have an extra advantage - they get obsoleted pretty quickly, so > you can get a pretty decent used one for around $250. And you get all the > internal power protection you need. > > > > Marek > > > > *From:* CnC-List [mailto:[email protected]] *On Behalf Of *Josh > Muckley via CnC-List > *Sent:* Sunday, November 20, 2016 11:53 > *To:* C&C List <[email protected]> > *Cc:* Josh Muckley <[email protected]> > *Subject:* Re: Stus-List 12 volt desktop compter > > > > You mentioned USB powered, so is the Raspberry PI. In fact that was one > of my biggest concerns. The stability of a usb connector from a 12v boat > supply just started feeling really unreliable. I overcame it with a UPS > addon "HAT" for the PI. That is one nice thing about a laptop or even a > tablet device. They don't shutdown just because of a sketchy power > connection and they will auto shutdown if the battery gets too low. > > They're portable and have a considerable screen built right in. They are > also natively designed for 12v power supplies. > > I guess that's why Rasberry PI fits my needs so well. It is a cheap > device that I can afford to ADD permanently to the boat and sustain > depreciation and obsolescence without flinching. The user interface can be > ANY of my other personal devices and doesn't have to be permanently tied to > the boat or regulatory transported to and from. > > Just my 2 cents, > Josh > > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > >
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