Different laptops have different connectors. You need the right tip for your laptop. This is very simply to find. Basically,dell la90pe0-01 laptop AC adapters comprise of 2 ends. One end is male power outlet. You use this end to plug into wall power outlet.Replacement For Dell LA90PE0-01 Adapter is rated at 19.5V 4.62A 90W.The high quality laptop charger for dell la90pe0-01 provides your laptop with safe and reliable power.It is over Charge protection, Voltage protection, Temperature protection, Short circuit protection, enjoys 1-Year Warranty,60-Day Money Back!Brand New Replacement For 90W 19.5V 4.62A Dell LA90PE0-01 AC Adapter/Power Supply/Charger With Laptop Cord.The Adapter is a 90W rated power supply and replaces dell la90pe0-01 laptop charger. Designed to meet Dell's original specifications. The Replacement Dell AC Adapter is designed to be 100% manufacturer compatible and will meet OEM specifications.Keep your adapter in a dry place with room temperature. Just like other electronic devices, adapter can get damage cause by high temperature.Avoid the metal tip of the adapter from getting in contact with other metal objects because it can cause short-circuiting. Your laptop might get damage when a short-circuited charger is used.Always put first the DC output plug into the laptop's power jack before putting the input plug on the power outlet. This is the correct method.