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you guys run your carputer with the engine off?

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  • you guys run your carputer with the engine off?

    anyone do it?
    i ocassionally am sitting in my car waiting for something or just lounging and want the radio on
    i dont know how long the battery would last with the carputer on

    and now that i think about it, if i had a head unit in there and just wanted to use that i couldnt cause once the ignition is turned on the computer starts up


    eh?
    2004 G35 Coupe project

  • #2
    Originally posted by aoLhaTer
    anyone do it?
    i ocassionally am sitting in my car waiting for something or just lounging and want the radio on
    i dont know how long the battery would last with the carputer on

    and now that i think about it, if i had a head unit in there and just wanted to use that i couldnt cause once the ignition is turned on the computer starts up


    eh?
    I do it all the time.. I think my car's main battery is 50-60A, and my "backup" battery in the trunk is 110A.. :-) I can leave it on for MANY hours, and i never really managed to drain my battery to the point where the car won't start.. I think my inverter cuts power at around 11.6V..

    Hope this helps you..

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    • #3
      Originally posted by burnout.no
      I do it all the time.. I think my car's main battery is 50-60A, and my "backup" battery in the trunk is 110A.. :-) I can leave it on for MANY hours, and i never really managed to drain my battery to the point where the car won't start.. I think my inverter cuts power at around 11.6V..

      Hope this helps you..
      more info on this backup battery please
      how does that work?
      2004 G35 Coupe project

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      • #4
        Well.. I run a wire (positive) from my main battery to my trunk.. Then it goes into a diode (to prevent the main battery from using backup when starting), and onto the positive pole on my backup battery.. Grounding is done in the car's chassis... Then i just run my inverter off this battery (with some relay's (for powering up) )..

        Hope this cleared it out..

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        • #5
          that sounds like what i'm looking for..

          Originally posted by burnout.no
          Well.. I run a wire (positive) from my main battery to my trunk.. Then it goes into a diode (to prevent the main battery from using backup when starting), and onto the positive pole on my backup battery.. Grounding is done in the car's chassis... Then i just run my inverter off this battery (with some relay's (for powering up) )..

          Hope this cleared it out..
          hi burnout.no :-)

          can you please tell me more about your relay's for powering up? do you shut down manually? (or go to standby?) which relay do you use?

          do you have a schema how your power-concept works? could you send me more information about that? sounds really good..

          thx a lot
          dave
          STATUS: planing / building
          Car: 85' Audi Urquattro
          System: VIA EPIA M10000?, GPS, WLAN, DLink Radio
          Display: 7" Lilliput Touchscreen
          Power: 300W DC/AC Inverter, OPUS?
          Sound: 7.1 Dolby Digital with Audigy2 NX

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          • #6
            Burnout basically built a battery style tank circuit. I'd bet his system won't reboot when crank. I do have 1 question though. What size diode did you use? The relay is probably just to turn on and off the inverter.
            NEW complete and updated My project with 100+ pics on 7-4-03
            If you have a Shuttle FV24 motherboard in perfect working condition for sale, please PM me.

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            • #7
              The system still looks like hell, but i can take a picture if you guys wanna see it? My system does NOT reboot when cranking, so it's sweet.. The relay is for turning on inverter and for setting power to amp.. Amplifiers remote power is run from my serial port.. Since I'm still stuck with an inverter (looking for a good laptop-adapter in norway), I use hibernate.. Boots to usable state in around 20 seconds including post..

              I use that morex psu 55W, with an M-10000.. the board takes in regulated 12V, so all i need to do is regulate that..

              Anyways, shall i post a picture..?

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              • #8
                yes..
                would be great! thx
                STATUS: planing / building
                Car: 85' Audi Urquattro
                System: VIA EPIA M10000?, GPS, WLAN, DLink Radio
                Display: 7" Lilliput Touchscreen
                Power: 300W DC/AC Inverter, OPUS?
                Sound: 7.1 Dolby Digital with Audigy2 NX

                Comment


                • #9
                  I'll try to get it done within an hour or two.. ****ty olympus camera, hope it works

                  Comment


                  • #10
                    i'll wait here...
                    STATUS: planing / building
                    Car: 85' Audi Urquattro
                    System: VIA EPIA M10000?, GPS, WLAN, DLink Radio
                    Display: 7" Lilliput Touchscreen
                    Power: 300W DC/AC Inverter, OPUS?
                    Sound: 7.1 Dolby Digital with Audigy2 NX

                    Comment


                    • #11



                      Hope this helps someone.. And like I told ya'll, it looks like hell! :-)

                      Btw, that box to the left in the pictures is the enclosure for the "backup"-battery.. The two wires that are just hanging in front of everything goes to the left side of the trunk, to the inverter...

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