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This doesn't seem right, but what do I know?

 
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paul.zimmer00(at)gmail.co
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PostPosted: Tue Jan 28, 2020 6:01 am    Post subject: This doesn't seem right, but what do I know? Reply with quote

I use and monitor two Hall effect current sensors on my RV.  One measures the current flow on the "B" lead from the main alternator, and the other measures the current flow to/from the main battery.  
What doesn't make sense to me is there are periodic and frequent current flows to/from the battery (1 to 5 amps) during normal cruise operations, this during periods of static and relatively light load (12-15 amps) on the electrical system, much smaller than the capacity of the 60A Plane Power alternator.    I would expect all power to be supplied directly from the alternator as it is supplying the current at a higher voltage (~14.5v or so) than the battery.  These periods of flow to/from the battery are short in duration normally lasting only a few seconds.
Is this normal or does it suggest a problem with the internally regulated alternator?
Any insight explaining what I am seeing will be appreciated.
Thanks
Paul


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