Voltage Reducer Ground

Blswan · 02-03-2019, 11:07 AM

Hi all. I bought a voltage reducer with grounding bus bar combo from carts unlimited. Question... do I ground the bus bar to the main neg on the battery pack or do I ground it all to the black neg coming out of the controller box?

Fairtax4me · 02-03-2019, 11:28 AM

The converters 36/48v side and 12v side share common ground, so the negative buss bar can be connected to either the pack main negative terminal, or to the controller B- terminal, whichever is easier/closer for you.

Sergio · 02-03-2019, 11:39 AM

If your cart has a working OBC, all negatives must go to Controller B- (some models have a negative connection block near Controller B-).

scottyb · 02-03-2019, 03:45 PM

Battery B- and controller B- are opposite ends of the same cable. Electrically these are the same connection point.
A benefit of connecting to controller B- is the lack of corrosion present at the battery end of the cable.

NoleFan4Ever · 02-03-2019, 04:22 PM

Another point, and was Sergio's, is that all accessories should go to the controller B- because on all OBC carts the Hall sensor can only account for energy units it actually has pass through it. So if you hook directly to the Negative on the Battery you bypass the Hall sensor in the OBC and it will not replenish the energy used by your reducer/accessories.....

fishbones · 02-03-2019, 04:27 PM

I was wondering, going to order that converter as well, were do you guys connect to the switched power, at the key switch or at the F/R switch?

Blswan · 02-03-2019, 05:35 PM

Quote:

Originally Posted by scottyb

Battery B- and controller B- are opposite ends of the same cable. Electrically these are the same connection point.
A benefit of connecting to controller B- is the lack of corrosion present at the battery end of the cable.

Thanks Scotty for the explanation. I bought your blue 30 amp kit. I was going to mount this in the stock location up front behind the suspension but the holes don’t line up. I can’t fit a drill in either. Any suggestions on mounting this unit?

NoleFan4Ever · 02-03-2019, 07:30 PM

Quote:

Originally Posted by fishbones

I was wondering, going to order that converter as well, were do you guys connect to the switched power, at the key switch or at the F/R switch?

I hooked my to the cold side of the switch

MadAktion · 02-03-2019, 09:49 PM

Quote:

Originally Posted by Blswan

Thanks Scotty for the explanation. I bought your blue 30 amp kit. I was going to mount this in the stock location up front behind the suspension but the holes don’t line up. I can’t fit a drill in either. Any suggestions on mounting this unit?

I’m not sure what cart you have, but this is my 2016 precedent

yawood · 02-04-2019, 04:53 AM

Like MadAktion, if you want to mount something to somewhere and the holes don't line up then make a bracket, either like his or from another piece of plate and drill holes in the bracket to mount the reducer and other holes that are at the right distance to bolt to the plate behind the suspension. Then bolt the reducer to the bracket and the bracket to the cart.

02-03-2019, 11:07 AM	#1
Blswan Not Yet Wild Join Date: Jan 2019 Posts: 14	Voltage Reducer Ground Hi all. I bought a voltage reducer with grounding bus bar combo from carts unlimited. Question... do I ground the bus bar to the main neg on the battery pack or do I ground it all to the black neg coming out of the controller box?
Blswan Not Yet Wild Join Date: Jan 2019 Posts: 14

02-03-2019, 11:28 AM	#2
Fairtax4me Bonafide Nincompoop Join Date: Dec 2015 Location: Charlottesburg Va Posts: 8,987	Re: Voltage Reducer Ground The converters 36/48v side and 12v side share common ground, so the negative buss bar can be connected to either the pack main negative terminal, or to the controller B- terminal, whichever is easier/closer for you.

02-03-2019, 11:39 AM	#3
Sergio Gone Wild Join Date: Sep 2012 Location: Charlotte, NC Posts: 9,329	Re: Voltage Reducer Ground If your cart has a working OBC, all negatives must go to Controller B- (some models have a negative connection block near Controller B-).

02-03-2019, 03:45 PM	#4
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,418	Re: Voltage Reducer Ground Battery B- and controller B- are opposite ends of the same cable. Electrically these are the same connection point. A benefit of connecting to controller B- is the lack of corrosion present at the battery end of the cable.

02-03-2019, 04:22 PM	#5
NoleFan4Ever MOD of all BS! Join Date: Sep 2011 Location: Florida Posts: 17,477	Re: Voltage Reducer Ground Another point, and was Sergio's, is that all accessories should go to the controller B- because on all OBC carts the Hall sensor can only account for energy units it actually has pass through it. So if you hook directly to the Negative on the Battery you bypass the Hall sensor in the OBC and it will not replenish the energy used by your reducer/accessories.....

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

02-03-2019, 04:27 PM	#6
fishbones Getting Wild Join Date: Mar 2016 Posts: 136	Re: Voltage Reducer Ground I was wondering, going to order that converter as well, were do you guys connect to the switched power, at the key switch or at the F/R switch?
fishbones Getting Wild Join Date: Mar 2016 Posts: 136

02-04-2019, 04:53 AM	#10
yawood Gone Wild Join Date: Jan 2017 Location: Queensland Australia Posts: 1,332	Re: Voltage Reducer Ground Like MadAktion, if you want to mount something to somewhere and the holes don't line up then make a bracket, either like his or from another piece of plate and drill holes in the bracket to mount the reducer and other holes that are at the right distance to bolt to the plate behind the suspension. Then bolt the reducer to the bracket and the bracket to the cart.

Similar Threads
Thread	Forum
voltage Reducer Ground	Electric Club Car
where do i ground for a 3 wire volt' reducer	Electric EZGO
Question about wiring voltage reducer and voltage meter to key switch	Electric EZGO
voltage reducer common ground?	Electric Club Car
Layout of Voltage reducer, fuse box, and ground bus lay out	Electric EZGO