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Unread 08-17-2010, 08:53 PM   #11
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Default Re: 48 Volt Charger Problem

The batteries are still very low and you might have to charge them one at a time to get some more charge in them so as the breaker wont kick.What is happening is the charger is overworking itself. If you have a 12 volt charger handy,just charge each one about 20 minutes or so and then connect the cables back up and plug in the charger and see what happens.Hope this helps.
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Unread 08-18-2010, 08:18 AM   #12
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Default Re: 48 Volt Charger Problem

Thanks Fixer. I will give that a try this evening.
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Unread 08-18-2010, 08:39 AM   #13
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Default Re: 48 Volt Charger Problem

i have to disagree with you guys on this one i have yet to see a battery pack at 47 volts cause a breaker to trip, now with the new one same thing i would change the cables and double check they are wired right and load test the batteries 1 at a time looking for one that might show neg. voltage it could have at one time been so low it has reversed polarity and is shorting the pack when power is put to it...................i could be wrong i don,t know but this dosn,t make sense.........what brand and model charger is it and did this problem just occur out of the blue or after new batteries were put in? if it started after than theres a cable on wrong.......recheck make sure all cables are wired pos to neg. and you can also open charger back up and bypass low voltage sensor than try charging and see what happens, if it charges it could be leading to the OBC but to be honest i,m not certain i,m just thinking of things you can do........your 10 gage red wire from the charge receptical to the #1 battery it is hooked to the positive side right? and your neg cable 10 gage to the #6 battery neg. terminal..................check this stuff out.....................
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Unread 08-18-2010, 09:35 AM   #14
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Default Re: 48 Volt Charger Problem

I installed new batteries at the end of May. The cart and charger has been working fine up until now. No wires have been moved or touch. All connections are clean. The charger did start acting up and would not charge about 1 month ago. I would plug it up and it would come on and the meter would go backwards and then trip the breaker. At that time ,I changed the diode heat sink assy. It worked fine for about 2 weeks and now it is doing what I have described before in an earlier post.
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Unread 08-18-2010, 09:37 AM   #15
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Default Re: 48 Volt Charger Problem

Sorry if it has already been mentioned but, have you tried your charger on another cart? Or another charger on your cart?
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Unread 08-18-2010, 07:03 PM   #16
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Default Re: 48 Volt Charger Problem

Quote:
Originally Posted by scottyb View Post
Sorry if it has already been mentioned but, have you tried your charger on another cart? Or another charger on your cart?


very golod point scotty, at least we can than eliminte and narrow it down to charger or cart........................................
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Unread 08-18-2010, 07:22 PM   #17
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Default Re: 48 Volt Charger Problem

Remove the cover off the charger, plug it into the cart, let it run until it pops the breaker, then feel the 2 A/C wires that go to the breaker, are they too hot to touch? Let me know. This isnt rocket science.
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Unread 08-18-2010, 09:13 PM   #18
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Default Re: 48 Volt Charger Problem

When the breaker tips.... The black ire from the power cable is hot. The other wire that comes off of the breaker and goes to a little black box or relay is just slightly warm. I hope that this helps you help me. I dont have another charger or cart to try.
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Unread 08-18-2010, 10:43 PM   #19
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Default Re: 48 Volt Charger Problem

while you have charger open the 2 inch black wire that goes from the breaker to that relay box....unplug it from the breaker and tape the end so it dosn,t touch anything and than take the tan wire from the transformer unplug it and plug it into the breaker where you took small wire from, plug charger into cart and see if it charges normal if it does charge normal it could be a indication of OBC going bad like mentioned its not rocket sicence but sometimes it sure seems like it.......................................lol...... ..............................
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Unread 08-19-2010, 08:07 AM   #20
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Default Re: 48 Volt Charger Problem

Thanks Tom....I will try that this evening. Thanks for your help. I will let you know the results.
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