Power plugs, sockets, voltage, and frequency used to supply electrical power to low voltage appliances, equipment, and lighting in homes and businesses vary across different locations.
Different countries use power supplies at different voltages (usually 110 V or 220-240 V) and AC frequencies (usually 50 Hz or 60 Hz). Most Dell AC adapters can operate between 100 VAC to 240 VAC (Volts Alternating Current) and can operate effectively across different locations.
The label on the back of the AC adapter brick specifies the input voltage range of the adapter.
The type of power plugs, sockets, and voltage varies in different locations. AC adapters provided with your Dell laptops can be used overseas. However, the power plug may not be compatible with the power sockets. You can use universal travel adapters that are compatible with standard wall outlets worldwide. Such travel adapters are compact and ideal for travel.
Auto-air adapters can help you stay productive on the road or in-flight. An auto-air adapter plugs into auto outlet (12 V socket in the car) or air outlet. Auto-air adapters are sold as a separate accessory. Before you purchase, ensure that the auto-air adapter is capable of providing sufficient power to your laptop. For example, if your Dell laptop requires a 90W adapter, you must use an auto-air adapter that is capable of providing 90W of power.