Controller super hot, cart shutting down

scottginfla · 07-05-2011, 06:19 PM

Quote:

Originally Posted by gaminde

OK now your at connections I feel no heat in any of my battery leads none!!!

I don't doubt that, I would feel the same way if I lived out in cali

scottginfla · 07-05-2011, 07:04 PM

Should I also consider replacing the ground wire running through the OBC?
It was also really hot. And the only cable still stock on the cart.

gaminde · 07-05-2011, 07:09 PM

what size wire you running??? in California everything is bigger, better and runs cooler

you could still have something bad like controller motor but if the wires are hot lets go there first

gaminde · 07-05-2011, 07:13 PM

oh you have to drive it to feel the heat no wonder there so cool

scottginfla · 07-05-2011, 07:40 PM

Running # 2 welding cable

gaminde · 07-05-2011, 07:50 PM

Quote:

Originally Posted by scottginfla

Should I also consider replacing the ground wire running through the OBC?
It was also really hot. And the only cable still stock on the cart.

any one cable makes all the others useless

lockman1 · 07-05-2011, 07:55 PM

Quote:

Originally Posted by scottginfla

Should I also consider replacing the ground wire running through the OBC?
It was also really hot. And the only cable still stock on the cart.

Quote:

Originally Posted by scottginfla

Running # 2 welding cable

It was always been to my understanding that when you "UP" your cable sizes,
that you should use a stock size cable going through the OBC,
and run the larger cable in parallel, but outside the OBC,
so you still have the charging capabilities of the OBC,
Yet, you have full voltage delivery to your controller...

Did you do this?

scottginfla · 07-05-2011, 08:14 PM

I did not run a parallel cable around the OBC, just have the stock wire.

Yes the cart still charges normal

I do not know if I have full voltage to the controller, but I have over 51 volts at the end of the pack. As stated earlier, the 48 volt wire was not hot at all.
I read somewhere else about using a piece of 5/16 stainless allthread and jam nut it through the OBC, then run two bigger cables to the allthread, one on each side.

gaminde · 07-05-2011, 08:21 PM

aluminum will give less resistance, copper would be best I could not find copper allthread

scottginfla · 07-05-2011, 08:30 PM

I could try and find a copper bolt and cut the head off it to make it into allthread, if a copper bolt is even available?

Should I just run a new #2 cable around the OBC and leave the stock wire?

Is my problem all due to the fact that I did not do anything with the stock OBC wire, one way or the other?

07-05-2011, 07:04 PM	#12
scottginfla 72 volt torque monster Join Date: Dec 2009 Location: Sorrento, FLA Posts: 589	Re: Controller super hot, cart shutting down Should I also consider replacing the ground wire running through the OBC? It was also really hot. And the only cable still stock on the cart.

07-05-2011, 07:09 PM	#13
gaminde Gone Wild Join Date: Apr 2011 Location: Texas Posts: 600	Re: Controller super hot, cart shutting down what size wire you running??? in California everything is bigger, better and runs cooler you could still have something bad like controller motor but if the wires are hot lets go there first

07-05-2011, 07:13 PM	#14
gaminde Gone Wild Join Date: Apr 2011 Location: Texas Posts: 600	Re: Controller super hot, cart shutting down oh you have to drive it to feel the heat no wonder there so cool

07-05-2011, 07:40 PM	#15
scottginfla 72 volt torque monster Join Date: Dec 2009 Location: Sorrento, FLA Posts: 589	Re: Controller super hot, cart shutting down Running # 2 welding cable

07-05-2011, 08:14 PM	#18
scottginfla 72 volt torque monster Join Date: Dec 2009 Location: Sorrento, FLA Posts: 589	Re: Controller super hot, cart shutting down I did not run a parallel cable around the OBC, just have the stock wire. Yes the cart still charges normal I do not know if I have full voltage to the controller, but I have over 51 volts at the end of the pack. As stated earlier, the 48 volt wire was not hot at all. I read somewhere else about using a piece of 5/16 stainless allthread and jam nut it through the OBC, then run two bigger cables to the allthread, one on each side.

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07-05-2011, 08:21 PM	#19
gaminde Gone Wild Join Date: Apr 2011 Location: Texas Posts: 600	Re: Controller super hot, cart shutting down aluminum will give less resistance, copper would be best I could not find copper allthread

07-05-2011, 08:30 PM	#20
scottginfla 72 volt torque monster Join Date: Dec 2009 Location: Sorrento, FLA Posts: 589	Re: Controller super hot, cart shutting down I could try and find a copper bolt and cut the head off it to make it into allthread, if a copper bolt is even available? Should I just run a new #2 cable around the OBC and leave the stock wire? Is my problem all due to the fact that I did not do anything with the stock OBC wire, one way or the other?

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