How to choose AC adapter replacement LG E2249 E1948S E1948SX E2242C W1947CY for charger?

If you accidentally broke the  LG E2249 AC Adapter. How do you safely buy the right LG 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 LG laptop's model number

The laptop number is the unique number which is located on the bottom or on the side of the LG 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 LG E2249 adapter wattage requirements

After find your LG laptop model number,you also need to find out the voltage requirement for the concerned adapter. LG E2249 Adapters have different voltage outputs and using the wrong LG laptop adapter can damage one's computer.
Check the user manual for voltage requirements for the LG laptop. The output voltage is normally listed as s DC voltage. Consumers can also check the product or part numbers for the LG laptop model.

• Find a compatible LG E2249 laptop adapter
  You should look for compatibility lists in descriptions of LG E2249 laptop adapters. Laptop model numbers often look similar, so make sure the model numbers match exactly.