probably too much draw on a small low battery
the 900 only has a small charging system 625w or about 45a@14v
a 4500 winch is about 850w or 60a@14v
so that winch could easily kill the motor
add all the watts being used
headlights 100w
fans
radio
fuel pump
not much left for charging
a 1.5hp motor can draw over 1000w

 

Normal, wait until you actually need the winch and put a load on it and see the funky stuff that goes on

rpm’s drop, voltage goes down, doesn’t take much winching before your winch just cuts off because of lack of power then you got to let it idle for 10 minutes so you can get 15 seconds of winching and then it cuts out again, rinse and repeat.

if you plan on using it much you really need dual batteries or at a minimum a snatch block.

 

I've been debating dual batteries or one large battery. Would hooking it up straight to the battery vs the buss bar be a better idea and help with the initial draw?

 

For a winch, to the battery. Draw is to high to have on the bus bar. I tried the bus bar first. Couldn’t even get enough to run the winch with most normal items on, went to the battery and fixed the issue. I know I do run a high electric load and will be getting a alternate upgrade this summer.
Actually any cable I have hooked up bigger than a pencil will be going into a distribution block off the battery when I redo it.

 

I have my front and rear winch hooked directly up to the second battery. I run 2 full throttle batteries which are like 4x the size of oem batteries with a utv wiring dual battery kit. I would imagine you would want to wire directly to the battery but that’s my opinion.

as for 1 large battery I have no knowledge of that. 2 batteries are the way to go if you ask me so if you drain one you have another to start the engine.

 

Holy crap the wires are everywhere


Sent from my iPhone using Tapatalk

 

Holy crap the wires are everywhere


Sent from my iPhone using Tapatalk

Yeah i probably should of cut them down and put new ends on them but the hell with that. I tried to zip tie them up and nobody will see them anyway lol.

 

I run 1 Odyssey PC1200 and carry a jump box. Have had "0" issues doing it this way. The PC1200 has way more than enough capacity to run a winch. Used my winch multiple times with none of the issues the OP has experienced.

 

Thanks a lot Muddy!

I am GUARANTEED to lose sleep tonight after seeing your wiring. It's not you, it's me,,,, I have cable management issues, but damn man,,, did you really have to show me that!?

 

I did some testing tonight with a voltmeter and found that at the contactor and junction block the power drops from 14.2v idling to 12.8 which still shouldn't cause the miss. I can run the RPM to a steady 3k RPM and hit the switch and everytime it would cause a slight miss when the button is pressed. I'm thinking the draw is too much at the junction block and pulling at initial button hit away from the ignition. I'm going to wire the winch directly to the battery next and see what happens.

 

Air separator, radio, gps, aux lights. Would turn for about a second then flash. After I moved to the battery post (positive) ran just fine. That’s also a 5000 warn. So a tad more draw.
At night, light bar would kill my heater, so I separated those also. Still a trial and error as I wire it up. But those were the only 2 issues I’ve come across so far for electrical.

 

Air separator, radio, gps, aux lights. Would turn for about a second then flash. After I moved to the battery post (positive) ran just fine. That’s also a 5000 warn. So a tad more draw.
At night, light bar would kill my heater, so I separated those also. Still a trial and error as I wire it up. But those were the only 2 issues I’ve come across so far for electrical.

That's quite a bit. Is all that being run off the stock battery?

 

Mrtosh, did you ever solve this issue? I am having the same issue on my 2020 xrc with factory winch.

 

Two batteries work well.

 

two batteries work well.

 

I have the Can Am winch on both machines with stock factory batteries. Both winches have been put to the test a few times. Zero issues.

A few threads like this had me worried but all good.

 

Mine is pretty much stock. Have a few high draw add ons. Heater, lights,
I have 4500 winch on the buss bar. Works ok, but on a big pull, the low voltage warning will come on the dash.
Have to set a bit and let it charge back up.

 

It turns out that I have a short somewhere in the winch harness. When I try to reel in, the ground off the battery negative to the frame melts the insulation. This was the cause of my low volts. I replaced the ground and need to find the short. My winch motor functions properly with an external source.
Anyone have any experience with this?

 

Well yeah, that's crazy

 

My 21 x rc was doing the exact same thing cutting out when using the winch. My dealer found a update for the computer from can am and so far the the issue has been corrected.