I recently lost my charger for my laptop. The charger was rated 18.5V and 3.5 AMP, 65W. I came across a replacement adapter that is 19V and 4.74A, 90W. It fits and it works, but Im afraid I might be slowly degrading my laptop battery or laptop using it. I googled it and some web pages/ebay auctions list my laptop as compatible and some do not list it on their compatibility list.