Check laptop adapters before ordering

Step 1 -- There are 3 variables that you need to know while selecting a power adapter for your laptop. You should do this only if you are unable to find a specific power adapter for your laptop.

  • 1Output Voltage(V): It should always be less than or equal to 19.5 V for most laptop models. It is 20V for some Lenovo laptops. Never buy a charger whose output voltage is more than what is accepted by your laptop. It might damage the internal circuitry.
  • 2 Output Current (I)
  • 3 Power Power = Output Voltage X Output Current
  • 4Please check that the Power (rating) is the same as your old Adapter.

Step 2 -- the Appropriate Type of Connector

Please note: Laptop connectors have many variations (in dimensions). For e.g.: Dell XPS L502x users should buy a charger with a connector having these dimensions: 7.4 mm x 5.0 mm. Select the one which is compatible with your laptop’s charging slot.