AC adapter Dell 90W 19.5V 3.34A for Dell laptops — replacement power supply

The Dell 90W AC adapter delivers 19.5V at 3.34A to power and charge compatible Dell laptops. Designed as a replacement or spare power supply, this adapter provides stable output for everyday tasks at home, in the office, or on the move. Its compact housing and standard barrel-style DC connector simplify connection and storage while maintaining steady power delivery for charging and operating the laptop.

Advantages

The adapter offers consistent 90W output with voltage regulation to protect connected devices from fluctuating input. Its compact and lightweight design makes it convenient for travel or carrying between locations. Built-in safety features such as over-current and short-circuit protection help reduce the risk of damage to the laptop. The standard connector ensures compatibility with a range of Dell port designs that accept 19.5V / 3.34A power input.

Suitable for

• Replacing a lost or damaged Dell laptop power supply
• Keeping a spare adapter at work or in a travel bag
• Powering and charging laptops for everyday office productivity and home use
• Using with compatible Dell models that accept 19.5V, 3.34A input

Key specifications

• Output power: 90W
• Output voltage: 19.5V
• Output current: 3.34A
• Connector type: standard barrel DC connector
• Input: AC mains power (typical laptop adapter input range)
• Form factor: inline AC adapter with detachable power cord
• Safety features: over-current and short-circuit protection

How to use

Connect the adapter to an AC mains outlet using the appropriate power cord for your region. Plug the DC connector into the laptop’s power input port until it seats securely. The laptop should indicate charging via its battery or charging LED. When not in use, disconnect the adapter from the laptop and unplug from mains. Allow the adapter to cool before storing if it has been used for extended charging or operation.

Recommendations

Use the adapter only with laptops that accept 19.5V and 3.34A input ratings. Avoid exposing the adapter to moisture or extreme temperatures, and unplug during electrical storms or when performing maintenance on the laptop. For reliable operation, replace frayed cables or damaged connectors promptly.