Optima Batteries 8002-002 34 RedTop Starting Battery 12-Volt, 800 Cold Cranking Amps, Size: 10" x 6 7/8" x 7 13/16" tall, Weight: 37.9 pounds, SAE Post. C20 Capacity: 50 Ah. CCA: 800 Amp Reserve capacity of 100 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