AC Adapter Dell 90W 19.5V 3.34A for Dell laptops (MPN 450-18567)

Dell AC adapter 90W (19.5V, 3.34A) is a replacement and spare power supply designed for compatible Dell laptops. The adapter provides regulated 19.5V output at up to 3.34A to power the laptop and charge its battery via the standard Dell barrel connector. Compact and portable, this 90W adapter supports continuous operation in home, office, and travel environments while maintaining stable voltage delivery under typical workloads.

Advantages

This Dell 90W adapter delivers consistent power output and built-in protection against overcurrent and short circuits. Its compact housing and integrated cable management make it convenient to transport and store. The adapter is compatible with laptops that accept a 19.5V, 3.34A DC input through the standard Dell barrel plug, offering a straightforward swap for an original or OEM-equivalent unit. Designed for reliable daily use, it helps maintain device uptime and battery charging when connected.

Suitable for

• Replacing a lost or damaged Dell laptop power adapter that requires 19.5V / 3.34A input
• Carrying as a spare adapter for travel or remote work
• Providing continuous power during long work sessions or presentations
• Using with Dell laptops that use the standard barrel connector and 90W power rating

Key specifications

• Output voltage: 19.5V DC
• Maximum output current: 3.34A
• Rated power: 90W
• Connector type: standard Dell barrel connector
• Input range: universal AC input for use with mains voltages commonly available in homes and offices
• Protection features: overcurrent and short-circuit protection (built-in)
• Form factor: compact external power brick with attached cables

How to use

Connect the adapter to a compatible mains outlet using the supplied AC power cable, then insert the barrel connector into the laptop's DC input port until it seats securely. Verify that the laptop indicates charging or external power via its status LED or operating system battery icon. For best results, use the adapter with laptops that specify a 19.5V, 3.34A (90W) input. If the laptop does not power on, check the mains connection, ensure the connector is fully inserted, and inspect cables for visible damage.

Recommendations

Use the adapter in well-ventilated areas and avoid covering the power brick while in operation to prevent heat buildup. Disconnect the adapter from mains power when not in use for extended periods. Replace the adapter or cables if you notice fraying, exposed wires, or intermittent charging behavior. Confirm device compatibility by checking your laptop's required voltage and connector type before use.