Compatible with the following models: RFA1811, Innotek BAT-001, UL544A 6V, RFA-18, 544A, K28A, 4NZ13, WC4LR44, PX-28AB, L1325, PX28A, L1325F, 476A, A28PX, V4032PX, Vinnie 6V, Vinnie L1325, Vinnie L1325F, A544BP,