The Duracell Ultra Group 27M has 650 Cold Cranking Amps of power to get your engine started every time.;This Group 27M battery is manufactured to ensure extended lifespan and power.;Dual Purpose Group 27M batteries are ideal for starting boat engines along with extra reserve capacity for trolling motors and other accessories.;An ideal replacement for any Group 27M starting or deep-cycle marine battery.;Exclusive dual-top stainless steel terminals for strong, corrosion-free connections. High density plates deliver longer cycle service.;Duracell Ultra Flooded Marine batteries come with a 1-year free replacement limited warranty.