TPE 2600mAh Laptop Battery for Lenovo (IBM) ThinkPad X60 / X60s / X61 / X61S / X60 1706 / X60 1707 / X60 1708 / X60 1709 / X60 2509 [with Samsung Cells] Battery type: Li-ion; Capacity: 2600mAh 37WH; Cells: 4-cell; Voltage: 14.4V. Compatible Part Numbers:40Y7001 / ASM 92P1168 / ASM 92P1170 / FRU 42T4505 / FRU 92P1167 / FRU 92P1169 / FRU 92P1227 / FRU 93P5027 / FRU 93P5028 Up to 500 cycles service life, low self-discharge, no memory effect; Dual IC chips provide protection against short circuit, over-discharge, overcurrent. CE/FCC/RoHS certified for product safety. Grade A Cell ensures fast charging and low power consumption; Operation time for standard batteries(6-Cell, 4400mAh) can reach approx. 2 hours, but the actual operation time depends on how much electricity is required on your device. TPE only deals with brand new premium replacement batteries. We only use the highest quality cells inside the battery pack so you will have a long service life. Our inventory turns rapidly and you will always receive a freshly manufactured battery.