How To Wire DC Step Down Converter & Relay with Golf Cart Ignition Switch | Stop Battery Drain!
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- Опубліковано 11 гру 2022
- #golfcart #howtoinstall #ignitionswitch
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In this video I Re-Wire the aftermarket Dc Converter to power on only when the golf cart is key switch is in the on position. This will work with any dc to dc converter.
48v Relay - amzn.to/3uJ1hQL
36v Relay - amzn.to/3BSEEh1
10A Step Down Converter - amzn.to/3VTWLuD
20A Step Down Converter - amzn.to/3v3BTpj
30A Step Down Converter - amzn.to/3iLZlnR
*Disclaimer: This video description contains affiliate links. That means that I am awarded a small commission for purchases made through them, at no added cost for you. - Навчання та стиль
Ive got you covered if you need 48v or 36v Relay:
48v Relay - amzn.to/3uJ1hQL
36v Relay - amzn.to/3BSEEh1
Installed the 48 volt relay today, works perfectly. Thanks for the idea and instructional video dude👍
My is a 2001 , thank you for your videos, awesome job!
A+ in your clarity explaining the way your modification is going to work. Many thanks. I just purchased my 1995 48V Club Car. I'm just taking baby steps.
In the input for converter did u wire the relay to from the battery positive to the input positive?
This was VERY VERY HELPFUL. THANK YOU
Yeah this is a great tip and you also pretty much explained how it works that way you can use a relay on these light bars also 👍🏼
Great video! Worked perfectly! My LED lights thank you
This video speaks to my exact concern when converting my 2012 Club Car DS from 48v lead acid to lithium ion batteries. I determined a 48V to 12V 20 amp converter would suite my 12v power needs and the inexpensive converter purchased did not have an ignition control wire. I measured the “little bit” of current always drawn as 20mA (0.02A) so to decide if a control relay was worth the effort, I calculated how long that small (but constant) discharge would take to Drain the battery. With a capacity of 60 amp hour, it would take roughly 3,000 hours or 125 days. I figured the cart will never go that long without use or charge during the summer months. During storage, the batteries have a disconnect so current drain is zero. Just my story why I never bothered to put in a relay.
Thanks for sharing, I'm not going to either after reading this.
Great video and very clear overview. I’ve learned a ton from this channel.
I’m probably not doing this relay switch either. Also my lithium max a power switch. If I’m not actively using the cart, I’ll just power the entire battery down.
Nice job and a reat problem solver, THANKS!
Thank you! I've been needing to do this for a while since I do see some battery drain over several days/a week. Didn't really feel like upgrading/dealing out my reducer. For some reason I was never able to truly grasp how to hook it all up until your explanations in this video. I ended up having a bad ground connection during the install that stumped me for about 30 mins, but I figured it out and now it's working like a charm. Thanks again.
In the input for converter did u wire the relay to from the battery positive to the input positive?
@@Jacks_ingenuity honestly, I cannot remember. Like I said, I've known about this solution for over a year, but figuring out how to connect it all up made my brain hurt so I didn't do it until this video explanation. I did it exactly the way he explains to do it in the video. I literally watched the video 1/2 dozen times noting what goes where and hooked it up the same. Like I said in my comment, I was initially stumped by it not working for me, but then figured out that I had a bad ground connection (I spliced it to an existing ground and the splice just didn't have a good connection). I would just go look at my cart for you, but unfortunately I did a really good install with wire management everything is well hidden in the battery compartment so I can't really tell what wire goes where anymore.
@@Internetpilot if you do look into it it would help me a lot
@@Jacks_ingenuity using his relay (otherwise the wire colors might be different), the battery pack positive goes to the black wire of the relay and then the red wire of the relay goes to the input positive on the converter. Then I put the the wire from the key switch on the yellow wire of the relay and put the white wire of the relay to the battery pack negative.
Good video. I did exactly the same since my 36/12 volt converter draws 1/4 amp in standby mode. Remember to add a fuse on the plus power input wire. Some higher priced converters include an extra control wire to connect to the key on wire at the cart controller so you don't need the relay.
Good information and useful to know for those who have carts that could be impacted by this issue. Our cart is a new 105 amp lithium cart with a master power switch (battery cut off / power down switch, not just turning the ignition off switch). Remember, the inverter is only "on" when it has something pulling power / amps from it. If your headlights, speaker, or other accy is turned off, then there is no draw and thus the inverter isn't working and is effectively off. On our cart, we power everything off when not using it and, when we're not using the cart for a few days or more, we hit the master power switch and that turns off power at the battery. So it can be good to install a keyed power lead to your inverter on an older (lead acid battery powered) cart, its not at all needed on a more modern electric cart.
What a great video buddy. Wish I lived closer to you so I could have you do a once over on my golf cart.
Hey this spring if I trailered my golf cart from my house in Pennsylvania would you do a once over on it?
Thank you, you explained it very simply and great with the demos GREAT TEACHER!
Thanks, Im trying
@@FentertainmentHi Ryan! Any chance you can tell me one more time where the red wire on relay goes to? Appreciate your help!
My daughter ordered me one of the cheap converters for my cart. I've had it a couple of years but no one knew how to install it. Sure would make it handy to charge a cell phone.
Good info sir
I like the memory feature. I have a 2020 Cushman Hauler Pro 72v with a factory 72-12v converter for the lights, etc. I installed a radio and had to add a small 7ah SLA battery for my clock and presets. I isolated it with a relay so when the converter is off, the entire 12v bus wouldn't be powered from by backup battery and when the cart/converter are on, it charges my backup. I didn't have a 72 volt relay so i tapped into the 12v power from the Curtis controller. I knew the small current consumed by the relay would be fine. I also soldered a diode across the coil to protect the controller from the collapsing coil field. Was kinda involved so it would've been nice to have the memory function.
Good Video!! Great instruction. Very Well spoken thanks for the instruction. Could I add a junction box with maybe 6 accessories access points to power extra lights and any thing else? I would think so but would there any issues adding anything else.
Thank you!
Great video. Diagram would be very helpful!!!!
While doing a 36 volt lithium conversion on a ezgo , the owner told me how some guests at her house left the headlight switch on ( the headlight switch is down by your leg next to the charging plug , easy to forget ) drained her old lead acid battery and blew the headlight fuse. I had watched this video before so I thought perfect solution if it happens again. I installed the relay and it worked perfect. As long as the key is off the headlight Will be off. Once again you make me look like I know what I’m doing.
Excellent video! And great idea.
Do the converters go bad? Mine seemed to be draining the battery in our 17’ Yamaha. It would beep a few times then stop. Did this several times.
I will be adding this now. My golf cart stays at my campground and im there only on weekends and i been putting it in tow mode when i leave but sometimes i forget this will eliminate that. Thank you
In the input for converter did u wire the relay to from the battery positive to the input positive?
Hi, I wired my 36v Ezgo Marathon according to your instructions, but the converter shuts off when the pedal is fully depressed. I also installed the AiLi Voltmeter installed (from one of your other videos). It shows my cart is 38 v fully charged and a voltage drop down to 31-32v when I press the pedal fully. I would be very grateful for any advice on what the problem may be? My next step is to bypass the relay and see if I still get the shut off. Thanks a bunch! Love your videos.
This was helpful. Is there a way to have a circuit and a 12 volt ubs and a 12 volt socket always live? Because using the key switch if key is off ALL YOUR 12VOLT circuit box is also
Off
Hey man, good video. Just wondering, would it work if I went: key switch to converter, converter to rocker panel, rocker panel to battery negative? Would there be anything wrong with that? Would turning the key off kill power to converter and rocker panel? Thanks in advanced
Thanks very much, John, for another excellent tutorial. But I have an unexpected result after making the connections. Everything works as you describe, I even hear a click in the switch when the key is turned. What I did not expect, and do not understand, is that the reducer also works with the switch's white wire disconnected from B-. With it off the B- post, the whole system still works, though without the click sound. Lights are the only 12V accessory and are wired directly from the reducer's yellow, and illuminate only with the key on. I also get a 12V reading from the light wire's in line fuse only when key is on. Any sage idea how this can be? The only other possibly relevant information is I have the reducer's negative out going to B-. I know this is not strictly correct, but I see no light negative wire. Thanks in advance!
I'm swapping my 36v cart to 48v, I have the 48v harness but do I need a 48v specific key switch as well?
@fentertainment Can I connect my speaker accessory wire to the blue wire on this? Directions tell me to wire to key switch but thought the blue may work for this?
Is the 48 to 12 converter no longer attached to the main postive? The video looks like the 48 is now coming from the ignition wire. Is this correct? About to do this to my 07 club car ds with the blue converter and relay that you provided in the links! Thanks!
Can you get the power for the dc converter from the ignition switch on side?
You have a great way of explaining things, but I had to watch the video twice to make sure I understood correctly. I had to refer to a schematic drawing for a relay before I truly understood. (Being from Indiana originally, I can be a bit slow sometimes. 😄)
I'm sorry it took you 50 minutes to understand.
In the input for converter did u wire the relay to from the battery positive to the input positive?
Yeah nice work
Sorry to resurrect with another late comment, but I only recently made this discovery myself -- although this mod definitely helps reduce a relatively small amount of battery discharge, the main benefit of this mod comes from like accidentally leaving the headlights on (or some prankster turning them on for you while the cart is sitting parked, etc.). However, the reducer by itself is just not that much of a drain on the battery. What actually is a significant drain on the battery (at least for Club Car Precedents) is the stock controller. When my carts sits idle for a week, I'll lose 10% or even more of the charge. However, when I recently went on a 3-week vacation on a whim I flicked the switch to put the cart in tow mode. When I got back from vacation the cart charge had only gone down 5-6%, which is just about normal self discharge for lead acid batteries in a month. Apparently even with the key in the off position, the stock controller is still doing a lot of things, including the roll-away alarm/braking feature, etc., which clearly takes a lot of power. So, if you don't use your CCP (with stock controller) very often, the best thing you can do to help with idle discharge of the batteries is to flick that tow mode switch on, which completely turns off the controller (or if not entirely, then mostly turns it off). Not sure if this is the same or similar with EZGO, Yamaha, etc., but it's definitely the case with Club Car.
will i have to change anything on the cart if i'm swapping out the lead batteries for 3 12v lithium batteries beside the guage?
Is there a video or wire diagram to hook this converter up to a regular switch? My switch is 24v compatible. Is there a way to hook it up?
how many amps do you think is needed for lights and speakers?
I have a cart with no lights at all. How exactly would I hook up the relay to the converter and the light to it to work? It is 48volt and I ordered what you had there. Could you help? I don’t get it all till next week. I would just like to know like The blue wire on the converter to the red wire on the switch or the white wire goes to the hot wire of the light or what ever it is. Don’t want to hook it up wrong and risk frying something or fighting it.
Bro I need help!! I recently bought a converter, fuse box, and key switch. This is how I have it wired but it’s not working,
Converter to battery converter hooked up to fuse box via accessory wires converter hooked up to key switch via one wire.
Key switch has black wire witch is attached to golf kart bolt, red wire that goes directly to positive terminal on battery, and a yellow wire which is attached to converter wire.
For some reason I’m not getting power to switch, also no power to fuse box which I am assuming is because there’s to power to switch wire
Hi Ryan! New subscriber here. Thank you for making this video. It gave me the confidence to do it on my 07 36v EZGO TXT. I followed all of your wiring directions but I am wondering if EZGO is just a tad different in that even with key off, I can put my FNR rocker switch to either forward or reverse (I can hear the relay click) and the headlights turn on. It only turns off when it is neutral. I have cabled the yellow wire from the relay to the ignition switch with a tap on the wire that doesn’t get energized until you turn the key to on. Any thoughts or suggestions?
Hi there, just curios if you got this figured out? I also have an 2005 ezgo that I'm about to do this also.
Could you just put the converter under the dash and put the red wire to the wire of the key that’s hot when the key is on and dead when it’s off and hook the other 2 to your stereo and accessories and do the same as wiring a relay to be another thing to complicate hooking it up?
I recently installed LED front and rear lights on a golf cart and I just put in a master switch between the 48vdc positive input.
Yes that works the same. I just didnt want that extra switch.
@@Fentertainment HI. MY friend can I use this same concept on 1987 club car ds 36v with the 5 solenoids my ignition switch seems like it only has a power and ground wire ?
Question. When swapping over to the 4 12v batter set up do you still need a converter or can you wire stuff up to one of the 12v batteries.
Its not suggested to run to one battery because if you do that one battery will drain before the other batteries and then the pack will not last as long.
Just blew up my converter after attempting to wire a relay w/key switch. Soon as I turned the key.
From relay, I went white to ground (batt) and yellow to keyswitch, Red to yellow on converter, and black to Batt positive.
Ran the 48v ground from converter to batt, and put the 12v side of converter to fuse box. Or at least I thought. Maybe I got the 48v and 12v backwards from the converter? I never a complete picture in the video.
I have a golf cart that had some lights in it already and they did exactly what you’re recommending. My question is can I add more lights to the same relay or I need another relay? For the new lights?
You dont add accessories to the relay. The relay is to cut the converter on and off with the key switch. You need a converter and a fuseblock to add more accessories.
Did you ground the main black (ground) wire from the DC converter to the same negative battery terminal that you ground the white wire from the relay?
That’s what I did.
Can you please send me a link of the wiring diagram, I can’t seem to find it 😢
Great video! Quick question… I just purchased a converter that has a key switch wire… so if I run that up to my key switch, I wouldn’t need to install a relay correct?
Correct
@@Fentertainment I just removed my old light kit (wasn’t working) and converter. Going to install new kit and converter. Besides a wire going to the key switch, my old converter had a tap into the tow switch prong. What does that do and is it necessary… thanks!!!!!!
Hi there, wanted to know how I can get a back seat grab bar like the one you have here on the white cart?
This cart has the stock oem rear seat on it. Not sure if it is part of the oem family or not.
In the input for converter did u wire the relay to from the battery positive to the input positive?
Sorry for late response to video
What do u connect the black output from the converter to. I wish u would show the wires after your done. Also wish u would say positive and negative for every wire to run and connect
In the input for converter did u wire the relay to from the battery positive to the input positive?
I have one of those converters on my 12x4 48 volt cart. I put in a fan on the roof to cool off in summer while sitting still. Stopped using my cart around November and tried using it around late February. Here in Illinois we can’t use them during that time as it is too cold to golf. I leave it plugged in to my charger, which also has a trickle charge it runs periodically. When I went to use it I could barely go 9 holes. The batteries are now only a year old. Water levels fine and taken care of. Took the batteries in and they said all 4 are bad. I can only assume it was drawing as it was sitting in the charger and hurt the batteries. Do you think that is possible?
Sure Do. Thats why I added this relay to the system. Now the converter is only on when the cart is on.
Thanks for everything. Great video. I ordered the relay and followed your video step by step. Worked great. So now my fan and after market USB port only come on after I turn the key in the on position. Worked exactly like you said it would. Thank you
@fertertainment: Late comment, but question about Relay and the Blue Converter (w/ constant blue 12v for radio memory). Since the Relay's "blue-wire" has power ("continuity") when key is off, how is this any different then the Converter's ("blue model") constant power "blue wire" (for radio memory)? Is the parasitic drawl only happening when the converter is converting the constant blue wire to 12v (from 48v), where the Relay has no parasatic drawl since its not converting, but only passing/diverting the power (48v "continutiy") to its blue wire when key is off? Thanks in advance.
No comment is ever too late. On a relay it was have 5 terminals. 85 & 86 is to power the coil. 87 = NO, 87a = NC and 30 is common. 30 has continuity between 87a when no power is being applied to 85 & 86. Since we didnt use 87a then there is no power being connected to anything (basically the switch is off). When power is connected to 85&86 then 30 and 87 have continuity (basically the switch is on). Continuity means pass through but doesnt mean power. When a 5 wire dc converter like the blue one is being used. Even though its technically off when the cart is off, the converter is still converting pack voltage to 12v and also delivering 12v memory to the radio. Its still working when you arent on the cart. You dont have to do it this way, you could do it the original way from the instructions but by utilizing a relay will result in the converter only powering on when the key is turned on.
The relay is powering down the converter when the key is off and powering it on when the key is on. No need for it to converter 48v to 12v when you are working, sleeping or away from the cart. Yes, the converter is still converting 48v to 12v when the cart is off and the blue memory wire still has power available on it. Its not supplying the full 30 amps but its still delivering power.
@@Fentertainment _ Really apprecicate your time and attention. I did understand your video explaining the coil switiching (just fyi a diagram could help for next time :) I really do appreciate you putting it all together into a video. My main goal is also not wanting the cart batteries to be unintentionally working when not using it (aka parasitic drawl). I was just double checking I was not substituting one parasitic wire for another (but seems pass through is not the same). Thanks again, keep the videos coming!
@@Auby03 Ten4, I answered reread and answered again. I need to make another video with better scenarios. It’s definitely something most could use.
Dose the step down converter drain the 48 Volt battery by just keeping it connected? even when the converter is not in use? just curious
yes
Great video. Will this 48v relay work on a 36v system?
This is a 36v Relay - amzn.to/3rzwyHA
@@Fentertainment thank you for your quick reply. 👊
I noticed the relay contact is rated at 14v dv 40a and the coil is 48v dc. Is the contact handling the 48v dc?
Yes, coil is 48v dc 40a @ 14v dc. The converter is 30a converter. We are under the recommended rating.
Would there be any issue installing a second 12v reducer? The cart came with a reducer and 12v accessories but is kinda of hard to get to.
Not at all
@@Fentertainment In the input for converter did u wire the relay to from the battery positive to the input positive?
Can I use the same relay, on a 36 volt golf cart? Or would I have you use a different relay?
Just get a 36v relay
That's for the great video ...I just did the to my 48 volt Yamaha works perfectly....like and follow people ...!!
In the input for converter did u wire the relay to from the battery positive to the input positive?
Yeah I think mine on my golf cart drains my battery’s this might be I go idea for my 08 Club Car president
Can a person convert a 1995 ds club car 36 volt to 48 volt, how much of a problem would it be??
If your controller could handle it, the all you would need is batteries and solenoid.
Got a2023 voler golf cart gas hooked 700 watt planet autio atv blue thoth speaker when u trun it up it plows the fuse
I run a fuse box on my set up and I can’t figure out the relay wiring. Do you have a video or a diagram that shows how to use the reducer, relay and fuse box? I have a 36v cart.
I do but it’s not a dedicated video. It’s a Bluetooth speaker video. I used a reducer, relay, fuse block and Bluetooth marine amp
@@Fentertainment does it show any of the wiring diagram? If so, can you post the link?
@@chrisreese6456 pretty sure I posted a homemade diagram in the video. ua-cam.com/video/NC5qVAXzoco/v-deo.html
Ordered a 48 volt relay, but how would I wire it to a fuse panel and reducer? I’ve got a couple accessories
@fentertainment
@@ZoSmAsH I showed how you wire it in this video.
Sorry I didn’t watch the whole video, appreciate it man! @fentertainment
Can’t you just install a shut off switch on the converter?
6:41 you mention yellow wire from the DC converter (12v+) to the relay red wire 87. Perhaps it’s as simple as a color coding difference between the product you’re looking at and the one I’m looking at on Amazon. The one I’m looking at, the yellow wire is the output12V+, not the 48V+. Wouldn’t you want to be switching to 48V+ input?
The unit I’m looking at on Amazon looks identical to yours. The red wire is 48V + input.
I am switching the 48v input side.
That’s why I like lithium batteries you can turn them off when not in use no drainage…..
I cannot figure out what you did with the red and black cable from the converter. It would be helpful if you very simply showed the exact mapping from wire to wire in a single screen. The wires were below the battery, so you couldn’t determine which was coming from the converter and which was from the positive terminal. I have the relay installed in the way I thought you described, but it functions exactly like it did before the relay. Power with key off. I appreciate your understanding of these concepts, but it would be helpful to very clearly summarize the wiring rather than going deep on continuity, coils, etc. I don’t need to know why. Just what color from the converter goes to which color of the relay. Then you can go deep on everything else. “This right here like that going to there like that” when you can’t see the wires is not particularly helpful.
The red and black are a normally open switch.The coil changes the switch to normally closed. Like a light switch. So break the hot wire and connect red to + battery and black to + of your power input to your voltage converter.
@@charnois11I ended up getting the more expensive converter and don’t regret it. Thanks for the reply
Thanks was just wondering 🤔
Need a video on same relay but introduce a fuse panel to run more accessories. Unless you have done this already!
Ive got a couple but the titles are for like bluetooth radios and such. Maybe I will take you up on that and do it.
@@Fentertainment In the input for converter did u wire the relay to from the battery positive to the input positive?
I really enjoy and learn from your videos. You lost me at the relay with the different color wires. I'll keep trying tho
I understand. The relay itself is basically just like a solenoid on a starter. The wire colors don’t mean anything and you could order different relays from Amazon and the wire colors would all be different. But all relays do the same thing.
I’ve been wanting to make a strictly relay video but didn’t know if anyone would benefit from it. Maybe I will.
@@Fentertainment In the input for converter did u wire the relay to from the battery positive to the input positive?
What if my ignition key only has 2 wires?
Most ignition systems on golf carts only have 2 wires. One wire will have voltage on it all the time & the other is the ignition on wire (This is the wire you want).
Where can I get me some good NO FLAT golf cart there’s? Reasonable.
While I like the video and can see what you are doing. I think that a wire diagram would actually answer questions
I included a diagram in the latest video. ua-cam.com/video/NC5qVAXzoco/v-deo.html
Hi, would be so much easy if can just put a picture of the wired connection, a diagram make it easy to understand for those that we don’t know much about this subject l, get lost on the connections cause the dc converted is behind the Battery so can’t follow everything you said since using too much technical words. Can please just put a diagram to follow the connections, thank you.
Someone else mentioned this as well and on today’s video I included a diagram.
I recently did this upgrade on my 1990 club car ds 36 volt cart, the one difference I encountered was that the on side of the key switch was the negative side of the 36 volt battery.
Hi Don were you still to hook up the relay with the side being the negative because I have a 1989 club car ds and looking to do the same upgrade ?
@@shawtdogI had no problem hooking up the relay, I just had to connect one side of the relay coil to the switch and then connect the other side of relay coil to the positive post of the battery pack. I suggest using a voltmeter to determine exactly what is coming from your switch and wire your relay accordingly
OK THANKS DON I APPRECIATE YOUR HELP
on is pronounced ahhhh nn no oooooohhh nnnn lol
Thanks !!
Who have their rectifier on when key of..so dum thumds down to watch
Easier wire the reducer to main solenoid
The main solenoid on this cart is activated by the accelerator. So every time the accelerator isnt pressed the converter will be off.
Hey bud, I like your videos but I need to make a correction to your statement that a DC converter draws power. If you wire in a DC converter with nothing on the 12vt side, it will Not draw power. If you connect a fan on the 12vt side with the fan switch off, it will not draw power. If you connect the fan and turn it on, it Will draw power. So your statement that it Always draws power is false.
Incorrect, my converter draws 1/4 amp in standby just being connected. This will drain the battery. I installed a relay to disconnect the plus 36v power lead that switches on and off with the key.