20V 4.5A 5.5*2.5mm For Lenovo IdeaPad G570 G580 G770 Laptop Adapter Charger 15.6 Inch G Series Notebook Power Supply|20v 4.5a|laptop adapternotebook power - AliExpress
20V 4.5A 5.5*2.5mm For Lenovo IdeaPad G570 G580 G770 Laptop Adapter Charger 15.6 Inch G Series Notebook Power Supply|Laptop Adapter| - AliExpress