Lenovo Battery Thinkpad T440s 68+ 6 Cell

Compatible with X240, X250, X260, X270, W550, W550s, P50s, L450, L460, L470, T440, T440s, T450s, T450, T460, T460p, T470p, T550, T560; Over-discharge protection; Safeguarded with a chip to authenticate itself with Lenovo systems