Battery type:
Li-ion,Voltage:10.8V(Compatible with 11.1V),Capacity:5200mAh,6 Cells
Operation time:
1.5 - 2.5 hours. Actual operation time varies depending on types of the device and the way it is used.
battery For L540, L440, T540P(Not for T540 Or T540S), T440P( Not For T440 or T440S), W540, W541.