made in marine batteries roadrunner deep cycle warranty replacement thicker grids provide extra reserve power for accessory loads 12-month free replace and 24 month pro-rata warranty roadrunner starting & deep cycle warranty demands of continual cycle service to provide more accessory warranty roadrunner roadrunner roadrunner starting warranty month free replacement maintenance-free design to maximize boating convenience with quality and power warranty quick starts in high amp drawing engines additional charge unless a used lead acid battery is returned built to withstand heavy charging and recharging service demanded by heavy horse power or extended trolling needs superior resistance to vibration and damage