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   alt.electronics      Electronics design, repair, worship, etc      7,706 messages   

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   Message 5,764 of 7,706   
   PeterD to coyoteboyuk@hotmail.com   
   Re: DC current   
   27 Jul 07 18:09:42   
   
   From: peter2@hipson.net   
      
   On Fri, 27 Jul 2007 17:37:54 +0100, coyoteboy   
    wrote:   
      
   >PeterD wrote:   
   >> On Tue, 03 Jul 2007 17:53:01 GMT, "Tony P"   
   >>  wrote:   
   >>   
   >>> I have done what you suggested and I have a reading of 0.39A   
   >>> I do not know if this is excessive for a car.   
   >>   
   >> Generally, over a longer term, it is excessive. Ideal parasitic draw   
   >> should be about 50 MA (0.050 A)   
   >   
   >50 MegaAmps - crikey ;) lol   
      
   But at only 1 mV...    
      
   >   
   >>, so you are *well* above ideal values.   
   >> However, monitoring requirements do both vary from vehicle to vehicle,   
   >> and over time as computers go to sleep and wake up. Best to check draw   
   >> about 30 to 60 minutes after stopping and closing the car. Do not open   
   >> doors, or otherwise let the car know you are there (like doing the   
   >> power remote locks, etc.)   
   >   
   >My car (older toyota) with immobiliser, alarm, stereo, clock and no   
   >other draw sits at around 200ma and I thought that was fairly excessive,   
   >so i'd be inclined to agree.   
      
   I'd call 200 mA (better?) too much too. I suppose if you drive every   
   day, that's OK, but skip a few days and that battery will be flat.   
      
      
   >   
   >>   
   >>   
      
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