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Unread 05-13-2011, 05:20 PM   #31
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

In the vain hope it is not six new batts...going to go and clean the battery posts...probably a wate of time with my issue.
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Unread 05-13-2011, 05:49 PM   #32
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

OK...just put the bypass on...at yellow fuse holder to sixth battery ground terminal . . .

Heard the charger "click" . . . Plugged charger in. Charger started humming . . . Reads 18 amps on the needle on the dc charger now as it has started charging.

Got my voltmeter in my hand...pack is at 50.4 volts and rising slowly...

So, what do I do now?

What am I looking for?

How long do I leave it the charger on with the bypass in place?

I am determined to defeat this thing with you all's help!
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Unread 05-13-2011, 06:45 PM   #33
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Quote:
Originally Posted by scottyb View Post
This may be an obc problem. I would try an obc bypass and manually bring the pack up to 63 volts and let it sit 12 hours, then give us a reading if you can?

OBC bypass & Test =
The black wire coming out of charge receptacle has a yellow fuse holder, open it up and connect a jumper from the end coming out of receptacle to the negative on Battery 6 or the last one in series.


You can either do this or bypass the relay inside the charger, either way the charger will not shut off. Be prepared to monitor and shut off the charger when needed.
Bypass is on cart and is charging, Scottyb....

Now what?
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Unread 05-13-2011, 09:46 PM   #34
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

With the bypass on, the pack is charging, now up to 56.4 volts from the oringal 50 volt reading it started with (43 volts two days ago).

After three hours with the bypass on, DC charger meter now down to 15 AMPs from the 18 amps start.

What does this mean?

OBC bad?

Any help out there?
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Unread 05-13-2011, 10:07 PM   #35
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Lightbulb Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Rhetor...it's doing exactly what mine was doing. Your OBC is shot. It's charging right now since you did the bypass...you have to stay with it. Don't leave it unattended for too long. The OBC controls the charger and tells it what to do and how much of a charge the batteries need. It won't cut off though as it normally would when the OBC isn't bypassed. Your the OBC at the moment. If you need to leave it unattended for more than 20-30 minutes I would stop the process and begin again when I could stay with it. Should take the normal amount of time to charge as when the OBC isn't bypassed. If the batteris are dead...12-16 hours. If your at 15 amps you are looking at needing a full charge
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Unread 05-13-2011, 10:11 PM   #36
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Hey Gornoman...suburban Chicago? Where? I'm a Batavia, St. Charles boy
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Unread 05-13-2011, 11:15 PM   #37
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Quote:
Originally Posted by Tbinkley3 View Post
Rhetor...it's doing exactly what mine was doing. Your OBC is shot. It's charging right now since you did the bypass...you have to stay with it. Don't leave it unattended for too long. The OBC controls the charger and tells it what to do and how much of a charge the batteries need. It won't cut off though as it normally would when the OBC isn't bypassed. Your the OBC at the moment. If you need to leave it unattended for more than 20-30 minutes I would stop the process and begin again when I could stay with it. Should take the normal amount of time to charge as when the OBC isn't bypassed. If the batteris are dead...12-16 hours. If your at 15 amps you are looking at needing a full charge
Mine is a 1996 club car (Ingersoll-Rand)...

Where did you get your OBC, tbinkley3? And about was the cost?

Do I need t wrestle the OBC out to find the part number? (wanna get the right part!)
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Unread 05-14-2011, 12:33 AM   #38
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Mine is a 2000+ CC Ingersoll Rand Special Edition. OBC on mine is located under seat, drivers side, top of compartment to the top right as you are looking into the battery compartment. Square maybe 6" square and yellowish in color with a black a black cable comng out of the center of the OBC and connected to #6 battery negative post. The OBC for my cart is $400.00 but i contacted a local who builds customs (Scottyb does this as well) and when they build these customs they save all of these old (still good) parts. I gave $200 for mine installed with pick up and delivery included. This stuff gets expensive quick. My guy responded as he did becasue as he was trouble shooting my cart he realized that I was somewhat informed. I'll pm you his name and number after i talk to him in the morning (make sure he has one) but if not a guy like Scottyb is gonna hae em. How is the charge coming?
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Unread 05-14-2011, 12:41 AM   #39
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Before i forget it...test each battery and ensre that all are fine even if weak. If you find one with a bad cell replace it as well. I bought a Crown for $110 (instalelled) that is doig fine. I bought an EZGO once i got the CC back on track because my club has rules about playing tournaments in a certain type, color etc, but my black CC is my Friay night Club House Pary Ride.
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Unread 05-14-2011, 02:06 PM   #40
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Default Re: 7.8 Volts on All 6 Trojan T-875s ? Help?

Quote:
Originally Posted by Tbinkley3 View Post
Mine is a 2000+ CC Ingersoll Rand Special Edition. OBC on mine is located under seat, drivers side, top of compartment to the top right as you are looking into the battery compartment. Square maybe 6" square and yellowish in color with a black a black cable comng out of the center of the OBC and connected to #6 battery negative post. The OBC for my cart is $400.00 but i contacted a local who builds customs (Scottyb does this as well) and when they build these customs they save all of these old (still good) parts. I gave $200 for mine installed with pick up and delivery included. This stuff gets expensive quick. My guy responded as he did becasue as he was trouble shooting my cart he realized that I was somewhat informed. I'll pm you his name and number after i talk to him in the morning (make sure he has one) but if not a guy like Scottyb is gonna hae em. How is the charge coming?
Just checked...turned off charger When gone this morning...came back and finished charge.....got a full charge! (batts stated bubbling...could hear it.) DC meter on charger went to 0 amps.

Unplugged the charger from the cart.

Pack now at 59.4 volts

5 of the batts now between 9.92 to 9.97 volts. 1 batt (#6 with the pack ground on it) is at 8.84 volts)

Weird part: when I puled the charger off the cart (w/ bypass still hooked up), the red light on dash comes on and off intermittently when the key is off (on for 20 seconds, off for 15 secs, the on for 20 sec, the off for 20 secs again, the on...), but the battery red level meter son the dash hows on full with key on)....

Interpretations of all this?

Are the batts good?

Is the OBC bad?

What the heck does the red light coming on and off mean? Something draining the batteries or is it related to the OBC even with the bypass on it? (The red light on and off when key off was my first flag that I had a problem.)

Waiting for you all to chime in with help before I contact Scottyb to see if he has an OBC . . . the red light thing is confusing me.
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