Power Patrol SLA1079 Beiter DC Power High Performance Power King 12 Volt 7ah SLA Battery Battery Type: Maintenance-free sealed Lead-Acid battery with suspended electrolyte (leakproof) Expected Battery Life: 3 - 5 Years BK500MC, BK500US, BK350, BK500, BK500-RS BK500BLK, BE500R, BE500R-CN, BE500U, BE500U-CN, BH500NET, BP500CLR, BP500UC, BP500U, BR500, BK600, BK600C, BK650MC, BR500, BX900R, BX900R-CN, SU420NET, SUVS420, SC822