Puwda G580 48Wh Laptop Battery for Lenovo IdeaPad Y480 Y580 G480 G585 Z380 Z480 Z580 Z585 L11S6F01 L11S6Y01 L11M6Y01 [ 6-cell 10.8V 4400mAh] Battery type: Li-ion; Cells:6-cell; Rating: 10.8V 4400mAh/48Wh 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Use Lithium-Ion technology and can be used as replacement for aging system batteries or as a convenient spare battery. Grade A Li-ion battery cell ensure fast charges and low power consumption. Built-in rechargeable battery protection, over discharge protection, over current protection, high temperature protection and short-circuit protection ensures both safety and stability. 12-month warranty. Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.