Also Known As LR1, E90, MN9100, MN9100/N, 810-2, AM5, 4001, 4901, 910A, UM-5, UM5, GP910A, LADY, N or KN. Size LR1 (MN9100, E90, N). Special Alkaline. Energizer high quality alkaline security battery, commonly used in security keyfobs and fishing bite alarms.
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