Looking into winches here... 9000 or 12,000 lb warn. My question is would this work okay on just my single battery, or should i get a dual battery setup going with the other battery dedicated for the winch? I remember watching guys in the tank trap last year, and one of em killed thier battery winching. so i had to run up to my truck and remove my battery for him. Would i be best off going straight to a dual battery setup if installing a winch??? Thanks.