Over Charging Issue

bcsman · 07-09-2016, 01:49 PM

I have a 93 CC and seem to have a charging problem. I wasnt aware of the situation until I starting smelling a rotten egg odor while driving. I didnt put 2 and 2 together until a few weeks ago when the cart would not start. The battery tested low on voltage so I put the charger on. After a few I smelled that odor again so I pulled the charger as it was maxing out and not going down on the indicator. I popped the water caps and saw it was dry, no water. So I filled with distilled and tried charging again but the battery was toast. I was able to borrow another battery while I ordered a replacement and found I was getting 15-16 VDC on the battery posts while running half speed. I did the check also with the yellow wire removed from the generator and shorting the post to ground. It showed 18 VDC or a little more so I ordered a voltage regulator. I received a Stens model with the 4 wires matching the one I replaced. After installing I am still receiving 15-16 VDC on the battery while driving as I put my meter on and ran the leads under the seat to monitor. It does slowly lower as I am driving, but isnt this still too much? Checked the generator with the yellow wire removed and still have 18 VDC pretty steady. So the regulator is lowering the voltage but still thinking too high. I dont want to boil another battery so am wondering if this seems normal. I suppose its possible I got a bad regulator but it is knocking it down some. And the battery is charged so should be minimal charge going in. Also I have no accessories such as lights to draw extra voltage.

mrgolf · 07-09-2016, 04:35 PM

Normal charge voltage for most autos is 13.8 volts. Not sure what the cart should be, but I would think about the same.

lockman1 · 07-09-2016, 06:44 PM

15.3 volts is a nominal charge voltage for CC's,
to much more than that, you might consider replacing the voltage regulator.

mrgolf · 07-09-2016, 08:09 PM

Quote:

Originally Posted by lockman1

15.3 volts is a nominal charge voltage for CC's,
to much more than that, you might consider replacing the voltage regulator.

That makes sence all the starting pulling power from battery.

bcsman · 07-09-2016, 10:23 PM

Well the V R is brand new, a Stens, but no guarantees. It is working somewhat as when starting my 20 minute ride it was reading 16.5 vdc on my meter at the battery, but had lowered to 15.75 near the end of the ride and was slowly dropping, but not sure how low it would have gone. Have to do an hour ride tomorrow to check it out. And again directly out of the generator is 18 vdc so also cutting that down a little so the V R is working some. I would think either it works or it doesn't.

bcsman · 07-11-2016, 09:41 PM

So have a question about the VR. Does it pass a charge voltage constantly to the battery or if the battery is charged does it selectively shut off to not overcharge?? Because I have been monitoring my battery while driving and it never shuts off.

And should the VR knock down the 18 VDC I am getting out of the generator to the 13-14 VDC normal level? Would like to read the specs on them.

general01 · 07-13-2016, 10:15 PM

What are you getting at the battery??
The starter/generator output stays steady(I think) but the voltage regulator is what regulates the output to the battery.

Mine rarely goes over 14.8 volts and that's with a healthy battery and it fully charged.

There is a service manual for these carts on the section page it will list them there.

07-09-2016, 01:49 PM	#1
bcsman Getting Wild Join Date: Jun 2013 Location: Capac, Michigan Posts: 108	Over Charging Issue I have a 93 CC and seem to have a charging problem. I wasnt aware of the situation until I starting smelling a rotten egg odor while driving. I didnt put 2 and 2 together until a few weeks ago when the cart would not start. The battery tested low on voltage so I put the charger on. After a few I smelled that odor again so I pulled the charger as it was maxing out and not going down on the indicator. I popped the water caps and saw it was dry, no water. So I filled with distilled and tried charging again but the battery was toast. I was able to borrow another battery while I ordered a replacement and found I was getting 15-16 VDC on the battery posts while running half speed. I did the check also with the yellow wire removed from the generator and shorting the post to ground. It showed 18 VDC or a little more so I ordered a voltage regulator. I received a Stens model with the 4 wires matching the one I replaced. After installing I am still receiving 15-16 VDC on the battery while driving as I put my meter on and ran the leads under the seat to monitor. It does slowly lower as I am driving, but isnt this still too much? Checked the generator with the yellow wire removed and still have 18 VDC pretty steady. So the regulator is lowering the voltage but still thinking too high. I dont want to boil another battery so am wondering if this seems normal. I suppose its possible I got a bad regulator but it is knocking it down some. And the battery is charged so should be minimal charge going in. Also I have no accessories such as lights to draw extra voltage.

07-09-2016, 04:35 PM	#2
mrgolf Old Sky Soldier Join Date: Dec 2011 Location: Kentucky Posts: 3,881	Re: Over Charging Issue Normal charge voltage for most autos is 13.8 volts. Not sure what the cart should be, but I would think about the same.

07-09-2016, 06:44 PM	#3
lockman1 What the ....? Join Date: Jan 2007 Location: N.E. Wisconsin Posts: 14,931	Re: Over Charging Issue 15.3 volts is a nominal charge voltage for CC's, to much more than that, you might consider replacing the voltage regulator.

07-09-2016, 10:23 PM	#5
bcsman Getting Wild Join Date: Jun 2013 Location: Capac, Michigan Posts: 108	Re: Over Charging Issue Well the V R is brand new, a Stens, but no guarantees. It is working somewhat as when starting my 20 minute ride it was reading 16.5 vdc on my meter at the battery, but had lowered to 15.75 near the end of the ride and was slowly dropping, but not sure how low it would have gone. Have to do an hour ride tomorrow to check it out. And again directly out of the generator is 18 vdc so also cutting that down a little so the V R is working some. I would think either it works or it doesn't. Last edited by bcsman; 07-09-2016 at 10:27 PM.. Reason: Add

07-11-2016, 09:41 PM	#6
bcsman Getting Wild Join Date: Jun 2013 Location: Capac, Michigan Posts: 108	Re: Over Charging Issue So have a question about the VR. Does it pass a charge voltage constantly to the battery or if the battery is charged does it selectively shut off to not overcharge?? Because I have been monitoring my battery while driving and it never shuts off. And should the VR knock down the 18 VDC I am getting out of the generator to the 13-14 VDC normal level? Would like to read the specs on them.

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07-13-2016, 10:15 PM	#7
general01 Gone Wild Join Date: Mar 2016 Posts: 379	Re: Over Charging Issue What are you getting at the battery?? The starter/generator output stays steady(I think) but the voltage regulator is what regulates the output to the battery. Mine rarely goes over 14.8 volts and that's with a healthy battery and it fully charged. There is a service manual for these carts on the section page it will list them there.
general01 Gone Wild Join Date: Mar 2016 Posts: 379

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