4400mAh Laptop Battery for Lenovo ThinkPad T440 T450 X240 6-Cell Li-ion Battery (10pc)

6 Cell Replacement Battery for Thinkpad T440 T440s T450 T450s T460 T460P L450 W550s X240 X250 X260 X270 P50S 0C52861 45N1144 45N1769. Specifications: Attention: For the new battery, we suggest all of our customers fully charge it by AC power adapter. Maybe it take a long period, the capacity was strain out by inner PCB circuit. In order to protect your battery life, you can fully charge it to 100% and drain to 2% ,it's a cycle and the capacity will recover. it's better to make normal use after 2 cycles and charge the battery regularly at least once a month. Battery Type: Li-ion Voltage: 10.8V; Capacity: 4400mAh; Cells: 6-cell Color: Black; 100% Brand New Cells. Rechargeable Up to 500 cycls over life of battery; High energy efficiency and extended battery life. Compatible with the following models:X240, X250, T440s, T450sCompatible with the following part numbers:0C52861, 0C52862, 45N1125 , 45N1127, 45N1124, 45N1126, 45N1127, 45N1128, 45N1129, 45N1130, 45N1131, 45N1134, 45N1135, 45N11