Conversion

Tom New · 12-14-2009, 11:07 PM

We recently took apart a 2000 Club Car and did a complete dc to ac conversion the only thing that is kept from old cart is the OBC. installed 4 new 12v batteries , they are at 70% from factory. Problem is with charger connected it pegs at 15v or slightly higher then turns off . will do this 2 or 3 times then not come on and charge at all. Batteries still at 70%. We have tried 3 different chargers , same result! checked wiring against schematic all ok.
Would like thoughts? and comments ?. cart runs like crazy, up to 27. MPH Batteries currently at 49.8v

Thanks

Fishing Dude · 12-15-2009, 03:10 AM

Could be the OBC, does it do this after 30 seconds or so?

Tom New · 12-15-2009, 07:01 AM

After that amount of time 30sec to a min. the charger just stays off!

K-DAWG · 12-15-2009, 08:36 AM

By-pass the OBC inside the charger.

Tom New · 12-15-2009, 09:11 AM

Just how do I go about by-passing the charger computer? disconnect wires to computer unit?
Doing this will make the unit a straight 48 v charger correct??

How about just connecting the charger wires to the battery set in car without running thru the car computer??

Fishing Dude · 12-15-2009, 10:11 AM

Did you take the OBC out when working on cart, or by chance switch the ends aroun of the wire going through it?

scottyb · 12-15-2009, 10:18 AM

This has always been the issue with the obc. The obc is the charger brain. I have not seen the AC conversion in a CC. But in the Ezgo, the charger has its controls within itself. CC charger can be bypassed at the fuse behind the plug but then you have a manual charger like 1982

Not many of us are capable of using a manual charger without under or over charging at some point.....
I suggest you complete your conversion with the purchase fo a new or used Lester (or equivalent) 48v charger and compatable plug.
Ditch the OBC!

Tom New · 12-15-2009, 11:59 AM

You folks are amazing on here. It's great to know there is help avaliable from like minded people with out having to fork over big bucks all the time.
We reversed the #4 cable that runs thru the OBC and now the charger works fine. Who would think that the OBC. reads direction of current flow, Thanks so much for the help
Tom N
Rincon, Ga.

scottyb · 12-15-2009, 12:25 PM

Glad you figured it out! Come back and post some pics and give us a run down on the AC conversion....... We need more AC info. I think it will be the wave of the future

GLEEMO · 12-15-2009, 02:06 PM

Quote:

Originally Posted by Tom New

You folks are amazing on here. It's great to know there is help avaliable from like minded people with out having to fork over big bucks all the time.
We reversed the #4 cable that runs thru the OBC and now the charger works fine. Who would think that the OBC. reads direction of current flow, Thanks so much for the help
Tom N
Rincon, Ga.

This is only the second time since I have been on here thet this has happened.
How soon we forget thet cable direction through the OBC makes a difference.
Excellent work finding this

12-14-2009, 11:07 PM	#1
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28	Conversion We recently took apart a 2000 Club Car and did a complete dc to ac conversion the only thing that is kept from old cart is the OBC. installed 4 new 12v batteries , they are at 70% from factory. Problem is with charger connected it pegs at 15v or slightly higher then turns off . will do this 2 or 3 times then not come on and charge at all. Batteries still at 70%. We have tried 3 different chargers , same result! checked wiring against schematic all ok. Would like thoughts? and comments ?. cart runs like crazy, up to 27. MPH Batteries currently at 49.8v Thanks
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28

12-15-2009, 03:10 AM	#2
Fishing Dude Gone Wild Join Date: Jul 2008 Location: Slums of Lake Erie Posts: 3,721	Re: Conversion Could be the OBC, does it do this after 30 seconds or so?

12-15-2009, 07:01 AM	#3
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28	Re: Conversion After that amount of time 30sec to a min. the charger just stays off!
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28

12-15-2009, 08:36 AM	#4
K-DAWG Gone Wild Join Date: Mar 2009 Posts: 256	Re: Conversion By-pass the OBC inside the charger.
K-DAWG Gone Wild Join Date: Mar 2009 Posts: 256

12-15-2009, 09:11 AM	#5
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28	Re: Conversion Just how do I go about by-passing the charger computer? disconnect wires to computer unit? Doing this will make the unit a straight 48 v charger correct?? How about just connecting the charger wires to the battery set in car without running thru the car computer??
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28

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12-15-2009, 10:11 AM	#6
Fishing Dude Gone Wild Join Date: Jul 2008 Location: Slums of Lake Erie Posts: 3,721	Re: Conversion Did you take the OBC out when working on cart, or by chance switch the ends aroun of the wire going through it?

12-15-2009, 10:18 AM	#7
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Conversion This has always been the issue with the obc. The obc is the charger brain. I have not seen the AC conversion in a CC. But in the Ezgo, the charger has its controls within itself. CC charger can be bypassed at the fuse behind the plug but then you have a manual charger like 1982 Not many of us are capable of using a manual charger without under or over charging at some point..... I suggest you complete your conversion with the purchase fo a new or used Lester (or equivalent) 48v charger and compatable plug. Ditch the OBC!

12-15-2009, 11:59 AM	#8
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28	Re: Conversion You folks are amazing on here. It's great to know there is help avaliable from like minded people with out having to fork over big bucks all the time. We reversed the #4 cable that runs thru the OBC and now the charger works fine. Who would think that the OBC. reads direction of current flow, Thanks so much for the help Tom N Rincon, Ga.
Tom New Not Yet Wild Join Date: Dec 2009 Posts: 28

12-15-2009, 12:25 PM	#9
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: Conversion Glad you figured it out! Come back and post some pics and give us a run down on the AC conversion....... We need more AC info. I think it will be the wave of the future

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