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Unread 03-06-2014, 09:01 AM   #31
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Default Re: Drained Batteries

Quote:
Originally Posted by Sergio View Post
Just a thought, but in case you do have a problem with the solenoid stuck, put the FNR switch in Neutral and see if it chargers correctly.
I've been charging/attempting to charge in Neutral from the start.





Status as of this morning: I started charging with my 12v charger yesterday. Got one set of two batteries charged to 6.6v each. Last night as they were charging I pulled the caps off and could see bubbles rising. Took roughly 8 hours to full charge at 12A charge rate. I now have another set of two charging (started charging at 7AM) and will check them at lunch time. Then I will move to the 3rd set of two.
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Unread 03-06-2014, 02:00 PM   #32
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Default Re: Drained Batteries

I just caught up to this thread today. I just finished working on a charger like yours. There are two things I will suggest to check. With both the AC and DC cords disconnected, remove the two transformer leads that go to the diode pack. Check the diodes individually with the diode test (not resistance) on your meter. You should have continuity in one direction and no continuity with the meter leads reversed. Check continuity of the triad fuse on the front face. If these two test Ok, I will take a guess that the capacitor has failed. There was a charger troubleshooting pdf file linked earlier. This is not the same charger, but the values may be the same. I would try to find the exact guide for your charger (if possible). I found that the charger I worked on had a shorted capacitor. It however, had no output at all. I experimented with using some different value capacitors on a Lestronic II charger just to see the differences in voltages and the voltage changes were considerable! Your charger should have a 3F 660VAC capacitor. I would suggest replacing it if the diodes and fuse check out! By the way, the charger I fixed had a 45.3V reading after several hours charging and while it was running. I'll post a link to one of our sponsors that will carry these parts: http://www.golfcartking.com/club-car...arts-s/127.htm

Edit: I just noticed that the 3F cap is not available through them. It should be available through most any electrical supply, though! :)
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Unread 03-06-2014, 02:15 PM   #33
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Default Re: Drained Batteries

simple man,

Thanks for the tips and I'll try to check those areas tonight.



As of lunch time: 2nd set of batteries still charging and taking a 12.2A charge per the 12v battery charger. Current voltage on the 2nd set is 13.1V. Slight bubbling occuring. I went ahead and put my solar charger on the 3rd set of batteries and hoping I'll be able to put the 12V battery charger on the 3rd set when I get home this afternoon.
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Unread 03-07-2014, 08:27 AM   #34
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Default Re: Drained Batteries

2nd set of two batteries took nearly 16 hours to full charge using the 12V charger. Voltage on 2nd set of 6.7V each.

12V charger is now on 3rd set of batteries.


Barring any rain, I'll be able to use the cart this weekend to get drain the batteries to try and recharge using the 36V charger. Got my Carts Unlimited voltage meter in the mail yesterday, so planning to install that tomorrow. From reading a few posts, I will wire direct instead of through keyswitch.
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Unread 03-07-2014, 09:58 AM   #35
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Default Re: Drained Batteries

You don't need to run the batteries down to charge them! You should be able to just remove and replug the DC cord to start another charge cycle. The charger should start at 18amps (or so), and come down in amps rather quickly ( hour), if you do a charge restart. Don't forget to check out the charger before you use it, though.
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Unread 03-07-2014, 01:24 PM   #36
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Default Re: Drained Batteries

simple man,

Can you help me identify the parts? Is the diodes attached to the back wall of the charger (upper left corner of picture)?

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Unread 03-07-2014, 06:54 PM   #37
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Default Re: Drained Batteries

Yes, remove the two transformer leads (thick braided wires), you dont have to remove the center wires. Do the diode check using one of the lugs (where the transformer wires were) and the center plate (copper looking). Reverse the meter leads and test again. Do this same test for the other diode lug.
I can't tell from your pic, but the one capacitor wire looks dark. These are pretty fragile, but pull on them gently (by the terminals) to make sure they are connected securely.
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Unread 03-07-2014, 09:38 PM   #38
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Default Re: Drained Batteries

Did the test and I get nothing in either direction from top post to center post or bottom post to center post. Below picture shows what wires are disconnected. I check continuity on the two lugs of the capacitor and I have continuity. Now this is just with my meter set to ohms. I have no specific "diode test" on my meter. Is that right? I ask because you mentioned above as "diode test (not resistance)".

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Unread 03-08-2014, 07:12 AM   #39
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Default Re: Drained Batteries

. . you don't have a symbol like below on your meter's dial function switch?

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Unread 03-08-2014, 09:07 AM   #40
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Default Re: Drained Batteries

I do not. My meter is a clamp meter for amps, but has AC/DC voltage and ohms too. No specific diode test.
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