AC adapter Dell 90W 19.5V 3.34A power supply for laptops, compatible models per manufacturer

Dell AC adapter 90W (19.5V, 3.34A) is a replacement power supply designed for compatible Dell laptops. It delivers a regulated 19.5V output with a maximum current of 3.34A to charge the battery and power the system during use. The adapter is intended for everyday use at home, in the office or on the road and provides stable power delivery to support normal laptop operation and charging cycles.

Advantages

The adapter provides consistent voltage regulation and sufficient wattage for many mainstream Dell notebook models, ensuring reliable charging and steady operation under typical workloads. Compact form factor and standard connector compatibility make it easy to replace an existing power supply. Built-in protective features such as overcurrent and short-circuit protection contribute to device safety and prolong the service life of the connected laptop battery.

Suitable for

• Charging compatible Dell laptops at home or office
• Powering a laptop during travel or remote work
• Replacing a lost or faulty original adapter
• Providing backup power supply for multi-location use

Key specifications

• Output voltage: 19.5 V
• Output current: 3.34 A
• Maximum power: 90 W
• Input voltage: universal AC input for mains use
• Connector type: standard barrel/DC tip compatible with specified Dell models
• Protection features: overcurrent and short-circuit protection
• Form factor: compact external AC adapter with attached cable

How to use

Connect the adapter to mains power using the removable AC mains lead, then plug the adapter's DC connector into the laptop's power jack until it seats securely. Ensure the laptop is switched off or in a charging-ready state as appropriate. Monitor charging status through the laptop's battery indicator. Unplug the adapter from mains when not in use for extended periods and store it in a dry, ventilated place.

Recommendations

Use only on compatible Dell models and ensure the connector fits securely. Avoid operating the adapter in unventilated, hot or wet environments. Regularly inspect cables and connectors for damage; replace the adapter if frayed wiring or other faults are found.