I would like to use an ATV Winch without having to use it on an ATV could I run it off a couple car batteries in parallel and just have it on a float charger?

http://www.ebay.com/itm/2000lb-0-9H...Parts_Accessories&hash=item5aec7ed14d&vxp=mtr

http://www.harborfreight.com/automo...ry/automatic-battery-float-charger-42292.html

 

The float charger doesn't stand a chance of delivering 90 amps. Use a battery..or two.

 

I was wondering if I could use two car batteries in parallel in conjunction with the float charger. Not the float charger alone x)

 

Should I use 12gauge wire since it'll be hitting maybe 90amps?

 

Ampacity of 12gauge is 20amps!
Max.

 

Oh dear. What should I use then?

 

As long as it is not continuous and only momentary for short periods you may get away with #6 or #8 at a push.
Especially if it is a long run.
A long run and high current you will get a large drop if too small Gauge.
Max.

 

Well it says if you're pulling 1/2ton you're going to draw 40 amps I most likely will not be lifting that much weight. So I'm sure I could get away with it

 

8 gauge will do 40 amps all day, but 47.76 feet, round trip, will cost 10% of your voltage. Any serious distance will require larger wire.

Even worse, when the voltage at the motor goes down, the motor will try to use more current, which causes more voltage loss. Vicious cycle. Be alert for the smell of burning plastic. If you're going to let your drunk uncle play with this, install a 40 amp circuit breaker.

 

Well it says if you're pulling 1/2ton you're going to draw 40 amps I most likely will not be lifting that much weight. So I'm sure I could get away with it

Your missing a very important thing here. Winches, like the one your talking about are for PULLING, NEVER for LIFTING!!!. The cap letters are not for showing anger but to show emphasis. A winch like this is not equipped to hold loads, so should never be used to lift something. Be safe don't hurt yourself or someone else.