TREE.NB Battery for Lenovo ThinkPad T440P T540P W540 W541 L440 L540, Replace Part Number - 45N1144 45N1145 45N1152 45N1153 45N1150 45N1151 0C52864 0C52863
Lenovo on Twitter: "@jwolf312 Hi! upon checking we have no part number for the screws meaning we cannot order it. But I can give you the link for the manual 1/2" /
Lenovo 45N0309 45N0310 ThinkPad AC Power Adapter Charger 20V 4 5A 90W