i would check it again after a 20 minute ride

that is ok ish a bit high id your battery is fully charged but if you checked it right after cranking it should be ok

 

I did check it on a short ride of about 15 minutes. Having a multimeter connected to the battery poles.
The meter gave out about the same voltage in the beginning (with the eninge running) as well as after about 15 minutes.

 

You might think about modifying the sensor wire to the RR.
That has helped my bikes charging system. I take the sensor wire that tells the
rectifier/regulator about the condition of the battery out of the wire loom and connect
it directly to the battery, positive terminal, I think, check that out to be sure.
The bikes I have made this modification to seem to charge at a lower rate.
There are some discussions on this forum concerning that item.

 

Thank you Old Okie

In the meantime I got a bit deeper into that toppic.
I think the black lead mod will be the way to go.

But as I read, it should not be connected directely to the battery (only via relay) as this way the RR will drain the battery. Is that right?

 

i have mine direct and it does not drain

 

I'm also for the black wire realignment directly to battery to prevent the RR to directly read the high resistance of the old loom. Constant charging of any battery at 14,8 V is too high and will cause battery burnout with a shortens battery life. With almost daily riding I also have found NO power tapping of the battery because of the black wire relay.

 

That is interesting. I read that about draining battery in the German CX500 forum.
Could it be that our bikes here in central Europe sit idle for a much longer period over winter (3 to 5 month)?
And that this draining will only occur over a longer time?

How much current does flow through the black wire?
Is there a fuse needed, when directly connected to the battery?

 

Did the black wire realignment directly to the battery.

The charging voltage is now down to 14.45 v at maximum.
Is that OK, or still a bit high?

 

Perfect!

 

That sounds about right. Mine charges at about 14.55. All is good!