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   rec.outdoors.rv-travel      Discussions related to recreational vehi      163,830 messages   

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   Message 163,600 of 163,830   
   sticks to Ted Heise   
   Re: Charging from tow vehicle (2/2)   
   07 Mar 25 11:48:30   
   
   [continued from previous message]   
      
   >>   How else it could be wired into the Lance's volt system is an   
   >>   interesting question. You say you think you also get lights.   
   >>   Sounds like there must be some other kind of control box then   
   >>   if this is true, and I would certainly follow the power lead   
   >>   off the 7 prong to find out where it goes.  Mainly, because it   
   >>   should NOT be going directly to the battery since it is a   
   >>   Lithium.  You simply cannot charge a Lithium battery properly   
   >>   from the alternator of a modern vehicle on it's own. It would   
   >>   never charge the Lithium, and it could harm the alternator.   
   >>   That capability requires the addition of the DC to DC   
   >>   generator.   
   >   
   > So the diagram I posted shows the power does go from the Acadia to   
   > the Lance battery.  Is that a problem?  I don't think there's any   
   > other kind of control box, unless it's in the junction box under   
   > the Lance tongue (or maybe in the Acadia's tow system).   
      
   You could ask the dealer if this can be left alone if you add a DC to DC   
   converter, or even if they think it will harm the alternator on the   
   Acadia, but I don't think it would matter and could just be left alone.   
      
   >   
   >   
   >>   You say you get these lights "without any battery connected."   
   >>   I'm assuming you mean you either have a disconnect switch, or   
   >>   you have the battery cable actually disconnected.  You see what   
   >>   I'm getting at?  If the interior DC circuits have no access to   
   >>   the battery, how is it they are getting power from the 7 prong.   
   >>   Where does it get hooked into the system?   
   >   
   > Yes, the interior lights go on with no battery in place (or with   
   > it and disconnected), I think the wiring schematic shows it goes   
   > into the load canter.   
   >   
   >   
   >>> As I lay awake in bed last turning this over and over in my   
   >>> mind, I seemed to recall the Acadia had a 110 V outlet in the   
   >>> second row of seats.  Indeed there is when I checked it this   
   >>> morning.  Rated at 150 W max, it seems I could use this with   
   >>> my NOCO GENIUS 5 charger (max 75 W draw) to charge the trailer   
   >>> battery in a pinch. Might could even use it to run the coffee   
   >>> grinder.  ;)   
   >>   
   >>   It looks like this unit is more for non-lithium batteries, but   
   >>   it does say it can charge them.  I'm not sure, though.   
   >>   Doesn't seem to have enough power capability to do much of   
   >>   anything.   
   >>   
   >>> Gotta run to see the cardiologist now, but will come back to   
   >>> this later today.   
   >>   
   >>   Hope you got some good reports!   
   >   
   > Thanks!  Just sporadic supraventricular arrhythmias, not a fib.   
   > Pretty benign according to the cardiologist.   
      
      
   Good to know.  Keep the rubber down!   
      
      
   --   
   Better Days Ahead!   
   Darwinism Is Junk Science!!   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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