BTI 451-BCIQ-BTI 11.4V 51WHR LI-ION BATTERY 0R8D7N, 451-BCIQ, R8D7N, W8GMW INSPIRON 15 7590 2-IN-1, INSPIRON 7590 2-IN-1, LATITUDE 5400, LATITUDE 5401, LATITUDE 5500, LATITUDE 5501, PRECISION 3540Upgrade your Dell notebooks power with a dependable BTI replacement battery designed to power Latitude 5400, 5401, 5500, 5501 and Precision 3540 devices, plus the 2in1 variants that share compatible battery footprints. This 3cell, 11. 4V Liion pack is engineered to deliver reliable, steady performance across everyday tasksfrom office productivity to onthego browsing and media streaming. By mirroring OEM form factors and electrical specifications, the