Have a 2010 Teryx that I bought used this summer. Has low hours on it (120) but of course is 4+ years old. Recently put a Warn 4000DC winch on it but when I attempt to run the winch (direct battery connections) it runs very slow and kills the battery quickly. The battery will charge and will start the vehicle just fine but the winch kills it fast. I am figuring the battery is getting old and I need a new one. What would be the best replacement for the OEM battery?