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Need recommendation a trailer winch battery

21126 Views 34 Replies 10 Participants Last post by  nasty85ss
?I need to replace my winch battery..

I was thinking of getting a deep cycle, dry cell but wanted opinions first.

What are you guys using and what do you recommend?
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4ga is a bit overkill, likely 6g will work fine. The battery if really down will accept 50ish amps for a couple of minutes and then drop off fairly quickly to 25amps. So really heavy cables are not necessary. But bigger is better, so dont let me discourage you from the 4ga. :) You can get Anderson Ends in 4 and 6ga as well as really heavy guages. If you go with 4ga, and use Anderson Ends, you can use the hookup for other things too, like a booster cable, 12volt outlet, etc.
thanks... i got the 1031mf. It was 109.99 direct from East Penn.
I am getting old, I can remember when they were $70Can.
Ray, a typical trailer connector has an extra 12ga aux power wire that can be hooked up to the trailer battery to provide a charge from the tow truck main power system. Should an inline fuse be added between the connector and the trailer battery? 12ga wire seems very small to take to a battery for a charge.
12ga is lighter than I would use. But it could still work, as the battery only pulls a lot of amperage when it first starts to get charged.

It is not too hard to run a larger 6ga wire from the front battery, ground to the frame, and use an Anderson End connector.
12ga is lighter than I would use. But it could still work, as the battery only pulls a lot of amperage when it first starts to get charged.

It is not too hard to run a larger 6ga wire from the front battery, ground to the frame, and use an Anderson End connector.
I think its normally used to mantain , not recharge a dead unit. Think of it like this you load the car with the winch ,then drive an hour or more to the track and use it then drive home
When you first start driving the battery will be pulling 50-60amps down the 12ga wire. That lightens up fairly quickly, but it stil lalways happens. Using your winch pulls as much or more power from the battery as starting your car. Which usually takes 5 minutes for the battery to recover most of its power from.
When you first start driving the battery will be pulling 50-60amps down the 12ga wire. That lightens up fairly quickly, but it stil lalways happens. Using your winch pulls as much or more power from the battery as starting your car. Which usually takes 5 minutes for the battery to recover most of its power from.
Im not saying its the best way but am saying it will work. if you drive a distance like an hour or 3 or 4 then it should be ok. guess it depends how close you are to the track
I looked at my truck today and the battery charge wire is 10ga and the wire for trailer brakes is 12ga
I do not use my trtailer that often so I could not justify mounting a battery on the trailer. When I bought my winch there was an optional wire kit to hook to my truck batteries. Plugs into the winch kinda like a trailer plug near the hitch. Real convenient.
I looked at my truck today and the battery charge wire is 10ga and the wire for trailer brakes is 12ga
You would still get a bit of voltage drop at first, but it would be way better at 10ga than 12ga. Really big difference. As long as you were not working with it, should be fine. (Only one battery too)
You would still get a bit of voltage drop at first, but it would be way better at 10ga than 12ga. Really big difference. As long as you were not working with it, should be fine. (Only one battery too)
I am in no way trying to get into a pissing match wil you over this. I was only stating that there is already a wire on the truck to charge, And I decided to look at my truck to see what was there.
Really I looked since my dad keeps telling me to run 6 or 4 ga to a anderson connector. I dont want to do this since I tow with my truck and suburban . I feel its easier for me to run my wire on the 7 pin for the trailer to the box with the battery. I will be building the trailer in about 2 weeks and just setting out my plans
Sorry if I am coming across as arguing, it is not intentional. I am just trying to give you as much information about the topic as I know, so you can make your own informed decisions. Hope that puts a different light on it.
Im working on putting an Anderson style charging wire on my trailer right now and have some questions.Does the amperage output of the alternator have any affect on what amperage connector I use?I can just run the ground side to the trailer hitch correct?Or is there a better location.
The load you have on the trailer has more to do with the amerage/wire size you use. If you are only recharging a battery, a standard automotive takes about 40-45amps, a group 31 50-60amps, 8D not sure but proably like 80-100amps, when you first start to charge it. If you are using it to operate something, then you must consider the load of what you are operating. i.e. if you have an invertor or something. Dont count things used when the truck is off though, just things while it is running.

Run the ground to the hitch should work fine, as long as it is being attached to clean metal. And make sure the cable end is heat shrinked well, same with the ends in the Anderson connector. If you clean a spot off on the hitch (I am assuming welded on) and then bolt the end on, you can paint the connection afterwards to keep the elements out. If you cannot get heat shrink on the Anderson connectors and get them into the holder (sometimes really tight), make sure to clear coat or gel the connection of the lug ot the wire. You do not want it to be exposed to air.
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