How to choose AC adapter replacement DELL PA-1450-01D LA45N-00 PA-20 310-9991 CR397 GM456 for charger?Dell Latitude XT Tablet PC

If you accidentally broke the  DELL PA-1450-01D AC Adapter. How do you safely buy the right DELL replacement adapter ?
There are some points that you need to know. After know about these point, you will avoid buying the wrong adapter.

•  You need know your DELL laptop's model number

The laptop number is the unique number which is located on the bottom or on the side of the DELL laptop computer. You can also check the user manual or search the computers built- in help program for the model number.The laptop's system's properties will have the laptop model number.

• You need to find DELL PA-1450-01D adapter wattage requirements

After find your DELL laptop model number,you also need to find out the voltage requirement for the concerned adapter. DELL PA-1450-01D Adapters have different voltage outputs and using the wrong DELL laptop adapter can damage one's computer.
Check the user manual for voltage requirements for the DELL laptop. The output voltage is normally listed as s DC voltage. Consumers can also check the product or part numbers for the DELL laptop model.

• Find a compatible DELL PA-1450-01D laptop adapter
  You should look for compatibility lists in descriptions of DELL PA-1450-01D laptop adapters. Laptop model numbers often look similar, so make sure the model numbers match exactly.