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???
12/23/05 01:31
Modified:
  12/23/05 01:48

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#105804 - You could try this
Responding to: ???'s previous message
Here is a suited schematic:

http://www.flying-wobs-trier.de/schrauber...tterie.htm

"LiMa" means "Lichtmaschine", which is the generator. "D+" is "charging control line" of generator: As soon as the generator delivers a stable voltage, "D+" goes "high" and turns-on the relay. So, during cranking phase, the second battery isn't connected to main battery and so, no voltage drop should be seen at second battery during cranking phase.
Take a very robust relay of at least 70A current rating.
The two 30A fuses must be located directly at plus pins of each battery!!
All loads connected to second battery must see a fuse in the plus line, best located directly at plus pin of second battery.

Kai

List of 73 messages in thread
TopicAuthorDate
What do you guess it could be ?            01/01/70 00:00      
   Van Der Graaff generator?            01/01/70 00:00      
      Whimshurst            01/01/70 00:00      
   Gas light            01/01/70 00:00      
   Sparking plug?            01/01/70 00:00      
      That's it !            01/01/70 00:00      
         Very well dangerous...            01/01/70 00:00      
            Condenser            01/01/70 00:00      
               Electrolytic, really?            01/01/70 00:00      
                  RE : Electrolytic, really?            01/01/70 00:00      
                  Could my modifications be harmful ?            01/01/70 00:00      
                     Capacitors            01/01/70 00:00      
                        it's always in my sight ;)            01/01/70 00:00      
                     DCCS            01/01/70 00:00      
                        So            01/01/70 00:00      
                           Specifications            01/01/70 00:00      
                              dash            01/01/70 00:00      
                                 Box and remote starting            01/01/70 00:00      
                                 Vacuum forming            01/01/70 00:00      
                              Plastic Boxes            01/01/70 00:00      
                                 potting boxes            01/01/70 00:00      
                                 Potting Boxes?            01/01/70 00:00      
                                    Vacuum Forming            01/01/70 00:00      
                                       Thanks for the link            01/01/70 00:00      
                                          Still need a nice "front"            01/01/70 00:00      
                                             Casing...            01/01/70 00:00      
                                                display            01/01/70 00:00      
                                                   Hidden until light up            01/01/70 00:00      
                                                      Visiting Tehran            01/01/70 00:00      
                                                         mail ?            01/01/70 00:00      
                                    Laptop            01/01/70 00:00      
                                       Hmm...            01/01/70 00:00      
                        Dash            01/01/70 00:00      
                           ...nor            01/01/70 00:00      
                           Covering is hard            01/01/70 00:00      
                     Battery seems to be disconnected!            01/01/70 00:00      
                        blocking            01/01/70 00:00      
                        Electrical sytem            01/01/70 00:00      
                           As I suspected...            01/01/70 00:00      
                              How to connect the second battery            01/01/70 00:00      
                                 Err            01/01/70 00:00      
                                    Dual battery            01/01/70 00:00      
                                       OOOPS            01/01/70 00:00      
                                 You could try this            01/01/70 00:00      
                                    RE :You could try this            01/01/70 00:00      
                        Electrical sytem            01/01/70 00:00      
            Neat trick            01/01/70 00:00      
               arcing cables            01/01/70 00:00      
                  no way            01/01/70 00:00      
                  Wow !            01/01/70 00:00      
                     50,000 volts            01/01/70 00:00      
                     Switching techniques            01/01/70 00:00      
                        Per Plug ?            01/01/70 00:00      
                           Sort of            01/01/70 00:00      
                        New techniques            01/01/70 00:00      
                           Current techniques            01/01/70 00:00      
                              DC/DC Converter not dedicated coils            01/01/70 00:00      
                           Ferrari 348            01/01/70 00:00      
                              Distributor-less            01/01/70 00:00      
                                 Not quite            01/01/70 00:00      
                                    Look here            01/01/70 00:00      
                                       Coils            01/01/70 00:00      
                                 Distributor-less            01/01/70 00:00      
                                    Wear and tear            01/01/70 00:00      
                                       Amazing            01/01/70 00:00      
                                    Distributor            01/01/70 00:00      
                                       Electrical field strengths would be huge            01/01/70 00:00      
                                          Big 'uns.            01/01/70 00:00      
                                             Interesting            01/01/70 00:00      
                                                Hate to think            01/01/70 00:00      
                  Porosity of cables            01/01/70 00:00      
                     corona            01/01/70 00:00      
                        Ah, that's the right word.            01/01/70 00:00      

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