Be careful drawing that much power out of a cigarette lighter. The connection will get hotter than a pistol! It is not meant to handle that much current for more than a minute or so at time. 3 or 4 amps is a good long term maximum, which is still 40 or 50 watts. Been there ... done that. -Dave.
On 8/22/2017 12:25 AM, Tom wrote: > I solved this kind of portability, and more, by purchasing an inverter. > I find that way more universal than trying to get stuff working on > battery power with unstable voltage. True 110V socket in the car is > awesome for road and marine trips. The size of the inverter is about > 15x20x5cm. > If you chose to go this route, I would advice to get true sine wave > inverter. It costs 2-3x more but it works way better than the square > and/or modified sine wave inverters. They (not the true sine wave one) > caused my power bricks + the inverter to overheat and it was bloody > noisy. You can draw max 15A out of lighter socket in the car so 120 > -150W inverter is all you can feed without wiring it directly to the > battery. I got it in Frys' after returning the cheaper modified sine > wave one. > Hope it helps, Tomas > On Sun, 2017-08-20 at 23:08 -0700, Michael Barnes wrote: >> Good to know. What would be really great is to find a similar printer >> that >> would run from 12VDC. I'd like to set up a completely portable fly >> -away >> package that ran from 12VDC to utilize battery/vehicle/solar power. >> >> Michael >> >> >> On Sun, Aug 20, 2017 at 7:35 PM, Dave <[email protected]> wrote: >> >>> http://lists.pdxlinux.org/pipermail/plug/2017-August/087027.html >>> >>> Here's a follow-up report: >>> >>> /I ordered an HP Deskjet 1112 from Amazon for this application. It >>> claims >>> // >>> //to have full support for Linux Debian (RPi?) and Mint via USB. >>> For $29 >>> it's // >>> //worth a try. If it works, it should be a perfect small addition >>> to a // >>> //stand-alone RPi student learning station.// >>> / >>> ------------------------------------------------------------------- >>> ----- >>> >>> Received the HP Deskjet 1112 and installed it first in Windows 7 to >>> make >>> sure it worked. Then installed it to a Raspberry Pi 3B. >>> >>> The software installation went mostly smoothly, carefully following >>> the >>> detailed instructions and accepting the defaults found at: >>> >>> http://hplipopensource.com/hplip-web/install/install/index.html >>> >>> They are close enough. (You do NOT have to worry about editing some >>> ??? >>> file mentioned. It's not on the RPi.) >>> >>> The only glitch was the install requires a root/superuser password. >>> If I >>> had one it apparently didn't like it so I added *sudo passwd root* >>> and >>> made "*root*" the password. That worked. In the future I'll do up >>> front >>> before beginning the software install to get it out of the way. >>> >>> I'm quite pleased with the results. For the price, it is a lot of >>> printer; quick, and excellent quality. But the HP software isn't >>> perfect. I can't get it to print the last page first despite a tab >>> to >>> that effect, and it doesn't print footers despite showing them on >>> the >>> screen. Since the printed text appears to be a little larger than >>> it >>> should that probably explains the missing footers. I may be doing >>> something wrong, but again, for $29, and having an easy RPi3 >>> Install, >>> this ain't bad. >>> >>> Will also be installing the 1112 to a Linux MINT machine just to >>> wring >>> it out some more and see what happens. Hope this helps someone. >>> >>> >>> _______________________________________________ >>> PLUG mailing list >>> [email protected] >>> http://lists.pdxlinux.org/mailman/listinfo/plug >>> >> _______________________________________________ >> PLUG mailing list >> [email protected] >> http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
