Optima Batteries 8014-045 D34/78 YellowTop Dual Purpose Battery 12-Volt, 750 Cold Cranking Amps, Size: 10" x 6 7/8" x 7 13/16" tall, Weight: 43.5 pounds, Dual SAE & GM Post Reserve capacity of 120 minutes for constant performance Optimal starting power even in bad weather. Case Material: Polypropylene Fifteen times more resistant to vibration for durability This item is not for sale in Catalina Island C20 Capacity - 55 Ampere hour