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2020 F150 PS XLT FX4 S/C Long Bed Blue Jeans.
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Discussion Starter · #1 ·
Hello all, A question about powering a winch I just mounted to my trailer, I have a 2020 XLT FX4 Super Crew, PS. If I run a cable from the truck battery back and hook up a Badland ZXR 5k winch, and use it to pull a car/truck up on to the trailer, will it affect any of my computer modules or Battery systems, as you can tell I am not a ford tech. I have heard that some of the new systems can be pretty sensitive. I don't really want to spend the money to put a big enough battery dedicated to the winch, and worry about keeping it charged, and or it getting stolen. any input on which way would be better.
thanks in advance.
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Shsrs,
I wouldn't worry about Battery Management System giving trouble. Your winch will tax your electrical system as if you would be jump starting someone else's vehicle. I got my BMS disabled by Forscan; can't stand auto/stop-start.

If replacing battery, make sure it's AGM or it won't charge properly and throw check engine light.
 

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I assume you are running dedicated positive and negative cables from the battery to the winch. If you use the HF recommended 6 gauge for 25' in each direction, you will be seeing 1.8V of voltage drop. Don't forget that the 6 gauge wire HF uses is for a 3' run from a battery If you run just one cable from the battery and return through the frame, you are on your own. If nothing else, your voltage drop will be even higher.


A small winch like that draws a current similar to a welder. When I weld on a vehicle, my standard practice is to put the ground as close to the weld area as possible to minimize the possibility of damage to vehicle electronics.

Just a suggestion, but price out 50' of 6 gauge wire (undersized IMO), a quick connect coupler, and four lugs (plus a big cable crimper if you don't own one) and compare it to a battery. I run a 9000# winch off a Group 75 battery (simply because it came off a car that I was hauling to a scrap yard for a friend) and I've never run out of battery, They sell for less than $100 new, and about $30 from your local pic-n-pull. Bolt the battery down, spatter some latex paint on it to make it look really old, and it will probably be passed over by midnight-auto shoppers
 

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2020 F150 PS XLT FX4 S/C Long Bed Blue Jeans.
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Discussion Starter · #5 ·
Thank you guys for the input. My son showed up over the weekend with a battery. Have it temp. Installed for now. It worked for the initial test when just pulling up riding mower. Going to get a battery box for it, and thinking about getting a small solar panel set up to keep it charged. Now I hope my beginners welds hold up when I put a real load on it.
Thanks again for your feedback.
 
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