Brand New -20 Volt Surge / 16 Volt Max -Built in distribution block -One 0 Gauge Input -Four 4 Gauge Output -Silver chrome finish -Competitions ready -Included Charging Resistor -Dimensions: 6"L x 8"W x 2.3"H -15,000,000 mfd (15 Farad) -Tolerances: -0% ~ +20% -E.S.R.: <2.5m ohm