Yuasa (YUAM7212B) YT12B-BS Activated Battery 12 volt, 10 ampere-hour, 215 cold cranking amps, maintenance-free battery Totally sealed and spill-proof - all acid is absorbed in special plates and absorbed glass mat separators Factory activated - filled, sealed and charged at the factory Advanced lead-calcium technology hold its specific gravity more than 3 times longer than conventional batteries No need to ever add water