It works fine, but is missing some circuitry to satisfy the laptop charging system, 19V Acer E1-522 E1-522-3407 E1-522-7634 Car Charger Adapter, Moncks Corner South Carolina, 29461
19V Acer E1-522 E1-522-3407 E1-522-7634 Car Charger Adapter
90W AC Adapter Acer TravelMate 4200WLMi 506DX 4280 4730 with Free 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.