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Unread 11-15-2013, 01:05 PM   #1
Not Yet Wild
 
Join Date: Oct 2013
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Question Battery voltage question

Hi, my question is , If I measure the battery voltage at the charger plug what should the voltage be? I'm reading 38v I know the battery is 50+. Is this because the - is going through the obc? Thanks jef
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Unread 11-15-2013, 01:31 PM   #2
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Default Re: Battery voltage question

Yep, cant get accurate voltage readings at charge plug on 48v CCs, dut to OBC.
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Unread 11-15-2013, 01:33 PM   #3
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Default Re: Battery voltage question

That is also good news... If you get between 36-42v when you place the probes on the charger port + and -, that means the SCR in the OBC is working properly. If the SCR was bad, you would get 0v.
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Unread 11-15-2013, 01:40 PM   #4
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Default Re: Battery voltage question

Obc not turning on charger! Why? At what point will it turn on?

Next question what are the outputs of the Curtis controller?

Dose it control + or - to the motor, and what terminals can I read the cart on jack stands?
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Unread 11-15-2013, 01:41 PM   #5
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Default Re: Battery voltage question

So your cart is not charging???
Does it click when you plug it in or does the ammeter move any?
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Unread 11-15-2013, 02:46 PM   #6
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Default Re: Battery voltage question

Only jumping out gray wire to ground
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Unread 11-15-2013, 03:54 PM   #7
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Default Re: Battery voltage question

Got it, the lights, volt meter I put in go through a ristor mounted on the side frame rail on the side of the cart , it goes to the - side of the controller without this The volt meter sees 50 volts with inline it sees 47/48 volts
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Unread 11-15-2013, 05:53 PM   #8
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Default Re: Battery voltage question

@Jefd Try something for me if you get a chance. There seems to be a lot of questions about chargers nor turning on. I'm wondering if a quick check for a broken gray wire or fuse would be to try driving it with the charger plugged in, If it moves the sense wire is broken. If not the wire is OK. If you would try that it would a good troubleshooting piece of advice in the future.
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Unread 11-15-2013, 06:38 PM   #9
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Default Re: Battery voltage question

The cart won't move with charger plugged into it! I also did a continuity test from the fuse to wher it goes onto the computer!
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