Batteries: 1 Lithium Ion batteries required. (included). For Daiwa Electric Reels : TANACOM 750 ,TANACOM 1000, LEOBRITZ S500, SEABORG 200J-SJ. For Compatible for Shimano BeastMaster 9000, PLEMIO 3000, Shimano PLAYS 4000, Compatible for Daiwa Tanacom 750,Compatible for Daiwa Tanacom 1000 ;Compatible for Daiwa Leobritz 500.