Need some help…

2016 Rancher cut off on me today while riding to the duck blind, would not restart. It cut off, and lost all power. No lights on dash, no power to anything. Had to push it 1/2 mile back to the truck….

I have checked the battery and the fuses. All is good.

Still under warranty but I would rather not take it to the dealer if it’s something simple.

I did put a winch on it myself a few months ago. No problems since, im pretty sure I did everything right.

It did sit out in the rain all night prior to duck hunting.

What else is there that I can check before taking it to the dealer?

Thanks for any and all help. Extremely dissapointed this morning…