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Unread 03-18-2008, 12:17 AM   #11
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Default Re: Bad Charger, or bad OBC?

Again, I've never had an OBC cart...but I have had 4 different automatic chargers which I understand is the same thing. Basically the smart part of the charger is on the cart. Who's bright idea was that?! Anyway when my carts are charged the charger shuts off and stays off. What they do is, they start strong with a full power charge. Amperage varies with make / model. And then they decrease amperage as the batts come up... eventually trickling or 'finishing' the batts with a long low (6-8 amp) charge lasting 3-4 hours.
I think you need to check all of your batteries before you throw the charger on. One low battery can throw the reading the charger gets off. See, the charger knows how many cells you have and tries to bring them all to a certain voltage. One low battery can cause the charger to cook the good ones trying to finish the slacker! A voltmeter is important. Can you post the voltage reading from all of your batts before you charge? Completly charged Individual and Battery pack readings are taken 30 - 60 minutes after charger shuts off. In this time the rediculously high readings durring charging will "settle" to reasonable #s.
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Unread 03-18-2008, 08:52 AM   #12
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Default Re: Bad Charger, or bad OBC?

They're all sitting at 8.36, except the newer one....its at 8.40. I havent had them on the charger for probably close to 2 weeks. Ive never charged the newer one at all.
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Unread 03-18-2008, 09:13 AM   #13
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Default Re: Bad Charger, or bad OBC?

Quote:
Originally Posted by BigDaddyRog View Post
They're all sitting at 8.36, except the newer one....its at 8.40. I havent had them on the charger for probably close to 2 weeks. Ive never charged the newer one at all.
They are perfect. Time for a charger re-test. Leave it on to do it's thing......I think it can run for 4-5 hours on these. Of course it varies with chargers....I would check the charge in individual batts after a few hours and then after each 30- 45 minutes. Not to let them exceed say 10.5 volts under charge.
DO NOT drain the new one too far recharge often for the first 10 cycles. Heck recharge often for longer life of the pack! How old are the rest of the batteries?
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Unread 03-18-2008, 09:46 AM   #14
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Default Re: Bad Charger, or bad OBC?

I have to assume they are the original batteries...making them 03s....ive looked at everyone and cant find a legible date...some of the post have something like "c 3" stamped into them...Im sure thats a date, but dont know the code...but because its a "3" in the stamp..Im guessing 03. The newer one is an 05...not new..but not $115 either. I would like to keep it plugged in whenever Im not using it, but am afraid to do that if the charger wont shut itself off. I was thinking about getting a timer plug and have it set to turn on for an hour or two every night...would that be acceptable?
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Unread 03-18-2008, 07:47 PM   #15
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Default Re: Bad Charger, or bad OBC?

I'm hearing more like after each use.....When left plugged in the charger is supposed to check the crt every 2 weeks or such...so that is for snowbirds who leave the cart for 6 months. First you need to determine if the charger will work now that all the batts are good. BIG difference! One bad battery will cause a charger to not shut off properly. You are not listening.....I'm almost done typing. You may want to re read this thread...
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Unread 03-20-2008, 01:22 PM   #16
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Default Re: Bad Charger, or bad OBC?

Take The Lead - Cable Loose And Put It In Reverse For About 30 Seconds With The Accelerator Pedal Fully Depressed, This Will Reboot The Obc Try That. It Sounds Like A Bad Obc. But You Need To Load Test The Batteries.
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Unread 03-20-2008, 02:17 PM   #17
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Default Re: Bad Charger, or bad OBC?

Is the lead cable the one that hooks to the controller?
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Unread 03-20-2008, 03:13 PM   #18
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Default Re: Bad Charger, or bad OBC?

no the negetive lead cable hooks to the lead battery goes to the back of the cart thru the obc, sitting on the car the left hand side.
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Unread 03-20-2008, 07:15 PM   #19
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Default Re: Bad Charger, or bad OBC?

Ok...Ive reset it...even heard a click right at 30 seconds.......I'll give it a couple of hours on the charger and see if it cuts off. I'll post back. Thanks, And thank you too Scott!
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Unread 03-20-2008, 10:50 PM   #20
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Default Re: Bad Charger, or bad OBC?

Quote:
Originally Posted by BigDaddyRog View Post
Ok...Ive reset it...even heard a click right at 30 seconds.......I'll give it a couple of hours on the charger and see if it cuts off. I'll post back. Thanks, And thank you too Scott!
A couple of hours is not enough......reread this thread out loud! Or have some one read it to you?
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