55Wh L16C4PB2 L16L4PB2 L16M4PB2 Laptop Battery Compatible for Lenovo Ideapad 720s-13IKB 720s-14IKB 720s-15IKB V720-14-IFI V720-14-ISE Series 5B10M55950 5B10M55951 5B10M55952 (15.2V 3646mAh)