lml@lancaironline.net Mailing List Archive

BandC.biz has lots of data on regulators, says 13-15 is normal range. I think 16v to the battery is too high a charge value for any 12v system I'm familiar with. Bill at BandC is the expert, always happy to talk on the phone (at length) and can set you up with the best voltages for your battery, regulator and probably the maximum value where a warning would trigger. I would call him.

Paul

On 2013-01-23, at 8:11 PM, Jim Scales <joscales98@hotmail.com> wrote:

I sent this posting a couple of days ago but it probably got lost during the IFR/VFR clearance debate. Thought I would try again because I would really appreciate some input.

Thanks.
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I have experienced a couple of events where my engine monitor alerted that there was an over voltage situation.  
My upper limit is set at 15 volts and the display was showing 15.2 to 16 volts. 
 
After troubleshooting the system the regulator was determined to be the problem. 
 
I have an adjustable regulator and adjustment was unable to fix the issue. 
 
I replaced the unit with a properly adjusted one and have about 8 hours on it without problem. 
The system displays 14.2-14.7 at all times in cruise. 
 
My questions are:  What numbers should I be seeing?  Is my 15V limit correct?  Would spikes of 16V damage my system? 
Would constant readings of 16V be bad? Any suggestions for actions needed to assure reliability?
 
Thanks for your input. 
 
Jim Scales
IO550G Super ES