Power adapter Dell 45W 19.5V 3.34A for compatible laptops, model 492-BCFT

Dell 45W 19.5V 3.34A power adapter, model 492-BCFT, is an external AC-to-DC power supply designed to charge and power compatible laptops and mobile workstation setups. The compact adapter supplies a stable 19.5V output at up to 3.34A, providing reliable 45W power for everyday office use, travel, and home working environments. Its standard DC connector and compact housing make it convenient to carry and integrate with docking stations or laptop power inputs that accept this voltage and current.

Advantages

The adapter delivers consistent voltage regulation to protect battery charging cycles and device operation under normal load. Its compact form factor reduces weight and packing space for travel while maintaining adequate cooling through a vented enclosure. The unit supports sustained 45W power delivery suitable for light to moderate laptop workloads and offers compatibility with a range of systems that require 19.5V/3.34A input. Built-in protection features help reduce the risk of short circuit, overcurrent, and overheating.

Suitable for

• Charging compatible Dell and other laptops that accept 19.5V/3.34A input
• Powering mobile workstations for office productivity and web browsing
• Travel and remote work where a compact external adapter is needed
• Replacing a lost or damaged 45W laptop power adapter with equivalent voltage and current

Key specifications

• Output voltage: 19.5 V DC
• Maximum output current: 3.34 A
• Rated output power: 45 W
• Form factor: external/inline AC-to-DC adapter
• Cooling: passive vents in enclosure for heat dissipation
• Connector type: standard barrel DC plug (compatible with laptops that accept 19.5V/3.34A)

How to use

Connect the adapter to an AC mains outlet using the included detachable power cord, then insert the DC plug firmly into the laptop's power port. Ensure the connection is secure and the adapter is placed on a flat, stable surface with adequate airflow. Verify the laptop's charging indicator to confirm proper operation. Disconnect the adapter by first removing the DC plug from the laptop and then unplugging the AC cord from the outlet.

Recommendations

Use this adapter only with laptops and devices that accept 19.5V at up to 3.34A and a maximum of 45W. Avoid placing the adapter on soft surfaces that block vents; allow clearance for cooling. If the laptop requires higher wattage under heavy load, use a manufacturer-recommended adapter with appropriate power rating to prevent reduced performance or battery charging issues.