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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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02-22-2011, 08:53 PM | #1 |
Not Yet Wild
Join Date: Feb 2011
Posts: 5
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Wiring in a relay to activate separate circuit
The title is perhaps overly simple but heres what I have. Ive got a '98 EZgo electric running 36v. The PO added a separate 12v battery for the radio and lights. The issue Id like to solve is this, the cart is for my wife and as it is setup you must remember to turn the 12v accesories off after you've turn the ignition switch off. No big deal but my wife admits she will probably forget often
I've used relays before to accomplish the basic idea BUT never in a multi voltage situation. Can I have say a 36v relay (or solenoid if you prefere) activate a 12v circuit without any voltage bleed. My idea would be to attach this off the ignition switch to send power automatically to the 12v circuit without a secondary switch for that circuit. Just thinking outloud right now, any thoughts? |
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02-22-2011, 09:12 PM | #2 |
Gone Wild
Join Date: Nov 2009
Location: Pennsylvania
Posts: 167
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Re: Wiring in a relay to activate separate circuit
Yes, that will work. Just make sure the coil is designed for the 36v activation circuit. The 12v accessory load on the switch side will be isolated, as long as you wire it correctly. There shouldn't be any voltage leaks.
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02-22-2011, 09:14 PM | #3 |
Gone Wild
Join Date: Dec 2010
Location: Jax FL
Posts: 598
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Re: Wiring in a relay to activate separate circuit
Well you could just run a 12v inverter off the key switch but then you would be running off the main packs.
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02-22-2011, 09:19 PM | #4 |
Stay thirsty my friends!
Join Date: Jan 2007
Location: Suburban Chicago
Posts: 24,286
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Re: Wiring in a relay to activate separate circuit
Psevins , Welcome to BGW!
A 3-position keyswitch could work very nicely here. It has a second circuit internally that is switched/rated for 12vdc. Position 1 - ALL circuits OFF Position 2 - CART control circuit ON Position 3 - CART control circuit ON, 12vdc circuit ON Turning off and removing the key would kill EVERYTHING. |
02-22-2011, 09:39 PM | #5 |
Not Yet Wild
Join Date: Feb 2011
Posts: 5
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Re: Wiring in a relay to activate separate circuit
Thanks! So any solenoid rated for 36v should work correct? Ive only fried one relay in my life and that was the very first one i used 8-)
hmm I think my current keyswitch is just a single but i like what your saying about the 3 positions...I will have to look into that. I'd rather keep my accessories on the dedicated battery and leave the primaries to move the beast. I bought it for the wife as a christmas gift and its been parked in the garage ever since (Indiana+winter=no fun) but looking forward to finishing it up for her soon |
02-23-2011, 10:16 AM | #6 | |
Stay thirsty my friends!
Join Date: Jan 2007
Location: Suburban Chicago
Posts: 24,286
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Re: Wiring in a relay to activate separate circuit
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02-23-2011, 10:22 AM | #7 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,408
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Re: Wiring in a relay to activate separate circuit
I like gorno's idea. The 4 pole Ezgo Switch is actually 2 switches in one. The 3 position switch is off/ignition/ignition & accessories. Simple and fool proof as long as the key is off the 12v stuff is off too.
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02-23-2011, 08:34 PM | #8 |
Gone Wild
Join Date: Jan 2011
Location: Camino, CA.
Posts: 300
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Re: Wiring in a relay to activate separate circuit
Also should note that if this is a series cart, there is not voltage at the switch unless the F&R in in Forward or Backward. I was planning on the same thing with a 12v relay and running a wire back to the neg post of the battery just before the last that has the Pos connection to the controller. Problem was that there was no voltage when not in F or R
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02-23-2011, 09:11 PM | #9 | |
Not Yet Wild
Join Date: Feb 2011
Posts: 5
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Re: Wiring in a relay to activate separate circuit
Quote:
Also found that the front lights have been grounded to the brush guard! I disconnected that little detail today. Not sure what it does but Ive read thats a big no no. Thanks for the info! |
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02-24-2011, 11:02 PM | #10 | |
Not Yet Wild
Join Date: Feb 2011
Posts: 5
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Re: Wiring in a relay to activate separate circuit
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