[Ducati] other variables for missing voltage?

[adam atkinson]

Hi, I know this thread has come up before so hopefully it's an easy one to diagnose.  I've got a new battery, new voltage rectifier (3 stage) and no known issues besides this on my 04 749.  The issue is low voltage when I start the bike.  I've charged the battery three times already and each time it's fine for the first day then right back down to approximately 11.8 to 12.5 volts (it jumps around within 5 seconds) and barely gets the bike started (sometimes it doesn't).  Colder weather seems to hinder it also (making me think faulty battery) however occasionally while riding I can see the volts drop below 13 even while spinning along at 45 or even 55mph.  
   I bought a voltage meter, but don't know where to start, if that's the best first step.  Any advice?

Thanks,

Adam


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