Power adapter Dell 90W 19.5V 3.34A for compatible Dell laptops (MPN 450-17406)

The Dell 90W 19.5V 3.34A power adapter supplies stable power and recharges batteries for compatible Dell laptops. This external AC adapter delivers up to 90 watts of power with a regulated 19.5V output and integrated protection circuits that reduce the risk of overcurrent and short-circuit damage. Designed for everyday use, it serves as a reliable replacement or spare charger for home, office, and travel.

Advantages

The adapter provides consistent voltage regulation to maintain laptop performance during use and charging. Built-in safety features protect both the adapter and the connected laptop from overcurrent and short circuits, and thermal management helps ensure long-term operation. Its compact form factor and removable AC cord make it convenient to carry and store, while compatibility with a range of Dell models offers flexible replacement options.

Suitable for

• Replacing a lost or damaged laptop charger
• Keeping an extra charger at the office or in a travel bag
• Powering and charging compatible Dell notebooks during work or study
• Use in environments where a stable 19.5V/90W supply is required

Key specifications

• Output voltage: 19.5 V
• Maximum output power: 90 W
• Maximum output current: 3.34 A
• Input: standard AC mains input via detachable cord
• Built-in protections: overcurrent protection, short-circuit protection, thermal management
• Adapter type: external AC to DC power adapter for portable laptops
• Connector: barrel-style DC output connector compatible with supported Dell models

How to use

Connect the detachable AC cord to the adapter and plug it into a suitable mains outlet. Insert the DC output connector into the laptop's power socket until it seats securely. The adapter will provide regulated 19.5V power and begin charging the laptop battery if required. To disconnect, remove the DC plug from the laptop first and then unplug the AC cord from the mains. Allow the adapter to cool before storing if it has been used for extended periods.

Recommendations

Use the adapter with compatible Dell laptops only and check that the laptop accepts 19.5V and up to 90W power. Avoid exposing the adapter to moisture or extreme temperatures, do not block ventilation openings, and inspect cables regularly for damage. If the adapter or cable shows signs of wear, replace them to prevent electrical hazards.