If it wasn't for the possibly coincidental sunlight, I would say it looks like an electromechanical voltage regulator in action. A regulator might go as high as 14 and change, and when it stops charging the battery voltage shows and is load dependent - not steady.
The change is kind of fast to be a thermal effect of the sunlight on plastic (not very conductive). Usually instrumentation amps for voltage are not that susceptible to changes in ambient temperature. How could be simply the light intensity? I don't have a feel for that. You could mess around with an ice pack or a bottle of chip freezer spray and see if the change goes the other direction. On Tue, Mar 17, 2015 at 5:55 PM, Lawrence Rhodes via EV <email@example.com> wrote: > Malfunctioning meter.: https://youtu.be/xNy8IOlRkII > > This is the correct url. Lawrence Rhodes > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150317/0d32c3cf/attachment.htm > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- To invent, you need a good imagination and a pile of junk. Thomas A. Edison <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 585-6737 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell michael.e.r...@gmail.com <michael.e.r...@gmail.com> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150317/fe0151c1/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)