Am I Over-Charging

[Suzuki_Don]

I dont think you have much to worry about, after all the RR is regulating even if it does seem a 'little' high.
For piece of mind I have fitted a little led that indicates the charge rate. Have a look at item 150479033981 on ebay. They work a treat and you can set the parameters as well (and they are cheap, UK made, and he will send overseas).
You could have a look at the compufire RR's, but if you go down this route save money and get an RR from a late (2007 on) Yamaha R1. Its also made by shindengen, can handle 50amps, and is easy to wire in. Im just waiting for a cheap one to turn up and that will be my next move.

Thanks for the reply. I am going with the R/R I have just fitted. I would like one that charges at about 14.5V but so far have not been able to find the specs for the different SH series Shindengen R/Rs. There should be some data sheets around somewhere where I can find the cut-out voltage of each of the units. Still looking.

BTW I do have a voltmeter on the bike as can be seen earlier in this thread. IT charges at 14.9 most of the time, but has never hit the 15V mark yet.

[posplayr]

Don,

sounds high.

What is the voltage difference between the R/R sense point (at the brake light) and the battery voltage at (+)? I'm guessing the brake light is lower by about 0.4V

If the brake light sense point is low , you need to move the sense point. The output of a relay is best. Try the coil relay mod and use that. It has been discussed here many time.

Jim

Don,
So after all the dust has settled, did you ever measure what I described above. It would most likely explain the high charging voltage.
Jim

[Suzuki_Don]

Don,
So after all the dust has settled, did you ever measure what I described above. It would most likely explain the high charging voltage.
Jim

Jim, you should be ashamed!!!!!!!!!!!!!

The reply to that question is in an earlier post. So just for you here it is AGAIN.

0.2V

Thanks for any more input Jim, I always value your electrical knowledge. Any idea where to find data sheets on the various R/Rs that we use? The two I have are a SH532 and a SH232, although I am bidding on a couple of more R/Rs for future use that appear to be on the cheap at this stage. Just as backups.

[posplayr]

Jim, you should be ashamed!!!!!!!!!!!!!

The reply to that question is in an earlier post. So just for you here it is AGAIN.

0.2V

.

Don,
Thanks. It was difficult to sort out in a 30 post thread on installing an R/R. I won't bother to delve into the question of whether you did anything about it.
Jim

[Suzuki_Don]

Don,
Thanks. It was difficult to sort out in a 30 post thread on installing an R/R. I won't bother to delve into the question of whether you did anything about it.
Jim

Jim how much would 0.2V cause the R/R to over charge.

[posplayr]

jim how much would 0.2v cause the r/r to over charge.

0.2v





................

[850 Combat]

I have seen more than one case where the sense wire was connected to the tail light wire, and it was overcharging because the connectors that fed the tail light and, therefore, the sense wire, were dirty, not letting the sense wire 'see' enough voltage. When the connectors were cleaned, the output voltage came right down to where it should be.

.

I had one do that. I moved it to the battery temporarily 1 year and a half ago. no problems since. I probably won't bother to change it ever.

[posplayr]

I had one do that. I moved it to the battery temporarily 1 year and a half ago. no problems since. I probably won't bother to change it ever.

see second post in this thread

http://www.thegsresources.com/_forum/showpost.php?p=1314933&postcount=2

[GabrielGoes]

(temporary thread jack alert**)

Mine charges at 13.9 at 4k rpm but doesn't go over when i rev it higher.. is this a sign of weak charging? i believe the healthy range was 13.9-14.5 @ 4k rpm and mines on the bare minimum.. just a little worried being on the bottom end... i have electrosport r/r wired directly to the stator wires, i just dont want to have a charging issue when im 30 miles from home at work

[Suzuki_Don]

The latest update is that although the voltage drop at the brake light switch terminal was only 0.2V I decided to switch the sense wire to the live side of the solenoid and see what happens. So after doing that change to the wiring I took it for a short ride and could not get it above 3000rpm because of the afternoon traffic and it was registering 14.3V at those revs and about 12.6V at idle.

I will have to do a more thorough test when I get the chance to ride a bit further where I can get the revs up to 5000 or so and see what the voltage is at then. I will also need to keep a check on the battery voltage to see if it discharges at all from having the sense wire connected directly to the solenoid. My battery is normally 12.9V when standing (motor not running). So I will watch it over a few days and see if it drops at all.

[posplayr]

(temporary thread jack alert**)

Mine charges at 13.9 at 4k rpm but doesn't go over when i rev it higher.. is this a sign of weak charging? i believe the healthy range was 13.9-14.5 @ 4k rpm and mines on the bare minimum.. just a little worried being on the bottom end... i have electrosport r/r wired directly to the stator wires, i just dont want to have a charging issue when im 30 miles from home at work

the discussion is about 6 wire R/R, not 5 wire. Start another thread if you have questions about 5 wire; better yet look at the revised stator pages for the test to solve the problems.

[Suzuki_Don]

LATEST UPDATE: In the last update I said the R/R was charging at 14.3V at 3000rpm. I took it for a longer ride today and took it above the magical 5000rpm and it registered 14.3, 14.4, etc on the onboard voltmeter. That is much better than the 14.9 that it was registering before when the sense wire was attached to the brake light switch.

Now it is attached to the solenoid I am much more comfortable with the 14.3V. BTW when the bike is stopped, motor turned off, the voltmeter registers 13V.

[tas850g]

My on board volt meter reads around 13V after going for a ride but drops some as the, correct me if i'm wrong, battery discharges some. It might drop to 12.5ish depending on the temperatures.

Since Lucabond wired in the relay switch I don't have to worry about it anymore.