"OPTIMA YellowTop batteries are made for the extremes. If you have an extreme vehicle, you expect high performance. To take the abuse of off-road driving or cranking out decibels, you need more from your battery. OPTIMA batteries with patented SPIRALCELL® Technology deliver that performance. The deep cycle characteristic of this technology coupled with its extreme resistance to vibration provides performance vehicles with the repetitive power they need in a spill-proof package."

We have four Optima batteries in the Wolf, and another two huge Gel Batteries in the Trailer. Plus a 24V intelligent charge unit.