It works fine, but is missing some circuitry to satisfy the laptop charging system, Genuine 90W Lenovo G580 2189-8AU 2189-88U AC Adapter Charger, Mason Ohio, 45040
Genuine 90W Lenovo G580 2189-8AU 2189-88U AC Adapter Charger
19V Acer Aspire TimelineX AS5820TG-333G50MN Car Charger
The charger works just fine, but the charging system complains when you plug it in. In fact the charging system says it will charge he laptop, but it lacks some management circuitry. A small annoyance.