Lenovo ThinkPad Battery 68 + ( Retail MFG P/N; 0C52862 ) Lithium Ion 6 Cell Battery Lenovo Thinkpad Battery 68+ ( 0c52862, Retail Packaged And Sealed ) 72WH , 6.6AH , 10.8V For T460, T460P, T470P, T550, T560, X240, X250 , X260, X270 Models. Lenovo Security Sealed Retail Packaging to Ensure Receiving A Genuine New Lenovo Battery. This Item Is Compatible With Model Numbers L450, L460, L470 ,T440s, T440, T450, T450s, T460, T460P, T550, T560, P50S , W550s , X240, X250, X260, X270 . This Item Is Not Compatible With These Models The X240S, T440P, T540P, L440, L540, W540 , W541 . Over-Discharge Protection To Prolong The Life Of The Battery. Battery Safeguard Chip Authenticates With Lenovo Systems