6-cell Lenovo U450 Battery L09C6D22 for lenovo ideapad u550 Compatible with 57Y6309, L09S6D21, L09C6D21, L09C6D22 Lenovo 57Y6309 Laptop Battery,Lenovo L09S6D21 Laptop Battery,Lenovo L09C6D21 Laptop Battery,Lenovo L09C6D22 Laptop Battery High Quality Laptop Battery Li-ion 11.1V 4400mAh 6-cell Designed for Lenovo IdeaPad U450P 20031,Lenovo IdeaPad U450P 3389,Lenovo IdeaPad U550, 1 Year Warranty