Power adapter Dell 90W 19.5V 3.34A for compatible Dell laptops, model 492-10897

The Dell 90W AC adapter provides a stable 19.5V DC output at 3.34A to power and charge compatible Dell laptops. Designed as a replacement or spare unit, this compact adapter converts AC mains power into the correct DC voltage for normal laptop operation and battery charging. Its form factor and cable length are intended to support use at home, in the office, or while travelling, ensuring consistent power delivery for everyday computing tasks.

Advantages

This 90W adapter delivers a constant voltage and current suitable for a range of Dell notebook models, reducing the risk of underpowering during peak processor or display loads. The adapter includes protective circuitry to help guard against overcurrent and short-circuit conditions, and its compact housing supports portability without significantly increasing carrying weight. The plug and cable are designed for straightforward connection to compatible Dell power input ports.

Suitable for

• Replacing a lost or damaged original Dell laptop adapter
• Carrying as a spare adapter for travel or commuting
• Providing reliable power for home or office laptop use
• Charging a laptop battery while performing high-load tasks

Key specifications

• Output voltage: 19.5 V DC
• Output current: 3.34 A
• Rated power: 90 W
• Input: AC mains (standard range for regional mains)
• Connector type: compatible Dell round or rectangular barrel plug (matches Dell laptop power input)
• Housing: compact external adapter (desktop-style inline brick)
• Protection features: built-in overcurrent and short-circuit protection

How to use

Connect the adapter to an appropriate AC mains outlet using the supplied mains lead, then insert the adapter's DC connector firmly into the laptop power socket until it seats. When connected, the adapter supplies power and charges the laptop battery according to the laptop's power management settings. Unplug the mains lead before disconnecting the DC connector and avoid pulling the cable to remove the adapter. Allow the adapter to cool in free air during extended use.

Recommendations

Use this adapter with Dell laptops that accept a 19.5V, 3.34A power supply. Verify connector compatibility and the laptop's required voltage/current before use. Do not use if the cable or housing is damaged, and avoid exposing the adapter to water, excessive heat, or prolonged direct sunlight. For optimal life, store the adapter in a dry place and disconnect from mains when not in use for long periods.