It works fine, but is missing some circuitry to satisfy the laptop charging system, Genuine 45W HP ENVY 15-u220nw 15-u230no AC Adapter Charger Power Cord, Chanhassen Minnesota, 55317
Genuine 45W HP ENVY 15-u220nw 15-u230no AC Adapter Charger Power Cord
Genuine 90W Lenovo ThinkPad T420 4178-APU AC Adapter Charger Power Cord
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.