Originally Posted by JRWooden
Could it be your radiator cooling fan kicking?
That would probably temporarily drop the voltage down to that range as it came up to speed...
Totally agree. When I had the single light one noted above and would ride with the riding lights around town at a light, the fan would kick on and it would turn yellow or even red (discharging state) for a few moments. I'd click off the running lights and it would go to yellow and back to green really quickly.