51913, UT51913, 12V20P, 51913-FS, BCP18-12, BCP18-12-BS, YUAM2219A, 51814, YT19BL-BS, YUAM6219BL Replacement Battery 325cca High Performance WP20-12i Sealed AGM for BMW Motorcycle GEL Battery Sealed AGM Maintenance-Free, no acid water needed, never needs re-filling Factory Activated High Performance Starting Power OEM compatible replacement battery Polarity | - ||||| + |