BTI TRHFF-BTI 11.1V 43WHR LI-ION NOTEBOOK BATTERY FOR INSPIRON 14 (5442), 14 (5447), 14 (5448), 14-5442, 14-5443, 14-5445, 14-5447, 14-5448, 14-5457, 15 (5542), 15 (5545), 15 5542, 15 5547, 15 5548, 15-5542, 15-5543, 15-5545, 15-5557, 5443, 5445, LATITUDE 3450, 3550