KyleQ
Bronco Guru
- Joined
- Apr 24, 2008
- Messages
- 5,480
I have a 12k MM for my trailer winch - I'm going to run a single battery with a heavy duty diode and use the vehicle power to charge the battery. No need to run heavy duty wiring - if one battery can't load something on the trailer I've got long enough jumper cables to go from the front to the back, but from what I've done so far, one battery is more than enough for everything I've drug on.