I plan to add a winch in my trailer tongue box. Nothing fancy, a 1500 lb. pull is what I have on hand. Bought it 10-12 years ago. To my amazement the current draw from this thing is insane. It pulls 120 AMPS when pulling 1500 lb. As the line pull drops so does the current, pretty much in step. So a 750 lb. pull needs 60 AMPS of current. The duty cycle is very low, 1 min pull, 15 min. cooldown.
My anticipated use is to haul my Suzuki Bergman (~450-500 lb.) or my 14 hp lawn tractor (475 lb.) onto the deck. I have decent 78" ramps and the trailer deck is only 20" high so the angle isn't terrible. I was going to rig up a connector coming off the Mirage tail lamps until I read the current draw. The entire circuit would melt if the Mirage fuse didn't pop.
I have a couple of ideas and maybe you can add some more to them. 1.) I'll install a smallish powersports battery in the tongue toolbox on the trailer where the winch will live. The powersport battery is grounded to the trailer frame and only connected when the trailer is hooked up. I figure a 130 CCA 12 AH battery is enough to load my gear.
I'll run a 10 GA wire from the main battery to a simple plug connector that is zip tied beside the flat 4 trailer wires. This way I only need 20 ft. of heavyish wire for the winch. I just realized a heavy single pole switch at the powersport battery will let me disconnect the Mirage wiring from the winch circuit.
2. Mount the powersport battery in the spare well. Same idea, one 10 GA cable from the main battery to the small battery. Add a simple connector alongside the flat 4 to provide power to the winch. I like this because it means the powersport battery is always being charged so it should last a fair while. I lose my spare well which is not cool. maybe I can push the small battery against the side of the trunk area and be OK with the lost space. I do get additional starting power.
Any other thoughts? What do you think the better place for the winch battery is? On the trailer in the tongue box or in the Mirage? Hmm. It dawned on me I'll need a powersport battery in each car I plan to use the winch with. 2 Mirages, 1 Saturn and I'm at needing 3 powersport batteries. I guess the battery goes in the tongue tool box, which itself can be fairly easily moved from trailer to trailer using dzus fasteners. The tongue box isn't that heavy loaded, maybe 60 lb. with winch, battery, spare tire, bottle jack, tie downs and some light tarps.
I feel there's something very basic I'm missing.
I did learn a winch rope should be broken in by pulling about 1/4 the rated weight several times, it's a good idea to spray the wire rope, galvanized or not, with some form of anti rust/lube spray. And the winch should always feed from under the drum rather than over the top. Ends the toilet paper roll direction argument. Lol.
One last thing, does anyone have any experience with the new style synthetic ropes for winches? For $22 it seems like a better move than buying a $25 roller fairlead. Ages ago I had a hand winch wire rope snap on a 23' boat and it seriously hurt a bystander. They needed a dozen stitches. I gather the synth ropes can't tension up and snap like the wire ropes.