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05-15-2020, 09:45 AM
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#11 |
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Not Yet Wild
Join Date: Feb 2018
Location: NY Capital Region
Posts: 21
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Re: OBC for lithium Carts
Hi everyone, I am converting this 2004 CC DS to lifep04. Cart is an IQ based on serial number AQ0437-xxxx, correct? I am just using the stock CC 3.3 hp motor (EJ4-4001) and Curtis controller (1510-5201) for now.
I want to remove the charge port completely and bypass/remove the OBC. I’ve read through the sticky on the OBC bypass but wanted to confirm I’m on the right path before I start snipping things. To bypass the OBC for an IQ cart, I need to splice the white and blue wires on the cart harness side of the 6 pin connector which I’ve circled in green in the picture? What do I do with the other wires on the harness side since I’m removing the OBC and won’t have any wires on the other side of the 6 pin connector? Then I just need to remove the main neg wire (must be 4 or 6 gauge) that runs through the OBC and reconnect back to the controller where its landed now? |
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05-15-2020, 10:09 AM
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#12 |
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Gone Wild
 Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: OBC for lithium Carts
Correct, the Blue and White wires connected together are needed to keep the Controller out of lockout mode.
The Other OBC wires are not needed so you can just leave the 6-pin connector unplugged. The negative wire will go directly from your pack negative to the controller B-. The OBC can be totally removed from the cart. |
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05-15-2020, 10:13 AM
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#13 |
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Not Yet Wild
Join Date: Feb 2018
Location: NY Capital Region
Posts: 21
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Re: OBC for lithium Carts
Thanks for the quick reply and guidance! We really appreciate all the support you guys give on this site.
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05-15-2020, 12:15 PM
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#14 |
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Not Yet Wild
Join Date: Sep 2018
Location: Jacksonville, FL
Posts: 73
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Re: OBC for lithium Carts
Here is what I have done thus far by removing the charging port and wires.
 Sent from my iPhone using Tapatalk |
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05-16-2020, 02:00 PM
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#15 |
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Not Yet Wild
Join Date: Feb 2018
Location: NY Capital Region
Posts: 21
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Re: OBC for lithium Carts
I removed the charge port, OBC, and did the bypass. Took it out for a quick ride. All seems to be working as it should. I still need to install the DC converter, fuse box, onboard charger, ac plug charge port, and battery monitor...
  Sent from my SM-G930V using Tapatalk |
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05-17-2020, 05:43 PM
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#16 |
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Not Yet Wild
Join Date: Sep 2018
Location: Jacksonville, FL
Posts: 73
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Re: OBC for lithium Carts
Some more picture of progress.
 Sent from my iPhone using Tapatalk |
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05-17-2020, 05:44 PM
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#17 |
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Not Yet Wild
Join Date: Sep 2018
Location: Jacksonville, FL
Posts: 73
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Re: OBC for lithium Carts
 Home made battery tray. Sent from my iPhone using Tapatalk |
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05-17-2020, 05:45 PM
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#18 |
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Not Yet Wild
Join Date: Sep 2018
Location: Jacksonville, FL
Posts: 73
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OBC for lithium Carts
The battery is in. Do I need to hook up this black ground or just leave it?
Sent from my iPhone using Tapatalk  |
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05-17-2020, 05:49 PM
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#19 |
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Not Yet Wild
Join Date: Sep 2018
Location: Jacksonville, FL
Posts: 73
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Re: OBC for lithium Carts
OBC bypass completed.
 Sent from my iPhone using Tapatalk |
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05-18-2020, 08:10 AM
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#20 |
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Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: OBC for lithium Carts
That 10ga black wire with a Yellow bullet connector is the negative for your converter/accessories.
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