Power Acoustik CAPCELL 600 AMP Auxillary Power Delivery System Surge 600 amp x 3 seconds. 8 Amp/Hour rating 3-6 Year Cycle Life Digital Volt Meter and LED Display 16 Volts DC, 3 Milli-ohm Int. Resistance 5 h x 6.25 w x 8.5 l, 1/4 Bolt Terminals Surge 600 Amp X 5 Seconds Features 0.25-Inch Bolt Terminal Capacity: 5 Amp/Hour