BTI - Notebook battery (equivalent to: Lenovo 45N1743) - lithium ion - 3-cell - 3900 mAh - 44 Wh - for Lenovo ThinkPad P50s 20FK, 20FL, T550 20CJ, 20CK, T560 20FH, 20FJ, W550s 20E1, 20E2
, 45N1740, 45N1743, 45N1742 3-CELL 44WHR 11.4V 3900MAH LI-ION