Been trying to decide if want to go with dual batteries with an isolator between, or just replace standard OEM battery with an Optima and keep the OEM battery charged and in reserve unwired. Initially thought dual was best with an Optima as either primary or 2nd battery, but viewed too many YouTube so kinda confused. Right now know need additional battery for snow plow which when needed the winch gets lots of use in a short period of time. Past experience with ATV/plow setup taught me that much (always need charge when done or else no start next time needed). Also sometime will be getting a light bar, but that’s about it for additional electrical needs.

Larry J
2015 570 Trail
Priors: 2004 Artic Cat 400, 2006 Sportsman 500, 2007 Sportsman 700 twin