AC adapter Dell 45W 19.5V 3.34A model 492-BBCR for compatible laptops

Dell AC adapter 45W (model 492-BBCR) supplies 19.5V at 3.34A to power and charge compatible laptops. The compact mains adapter is intended for everyday use at home, in the office or while travelling and features a standard barrel connector, built-in safety protections and a regulated output to support stable battery charging and reliable device operation.

Advantages

The adapter provides a consistent 19.5V output with 3.34A current capacity that supports sustained laptop operation and battery charging under normal loads. Its compact design reduces bulk in a bag and simplifies placement near workstations. Integrated protection against overcurrent, overvoltage and short circuits helps maintain device safety, while the standard barrel connector ensures compatibility with a range of laptops that accept this connector type. The regulated output helps prevent voltage fluctuations that could interrupt performance.

Suitable for

• Powering compatible laptops that require 19.5V and draw up to 3.34A
• Charging laptop batteries during everyday use at home or in the office
• Carrying as a spare or replacement adapter for travel or mobile work
• Using with docking stations or workstations that accept a barrel-type power input

Key specifications

• Output voltage: 19.5 V DC
• Maximum output current: 3.34 A
• Power rating: 45 W
• Connector type: standard barrel connector
• Input: mains AC (universal range for typical household and office use)
• Built-in protections: overcurrent, overvoltage and short-circuit protection
• Form factor: compact external mains adapter (brick-style)

How to use

Connect the adapter to a compatible mains outlet using the supplied AC cable, then plug the barrel connector into the laptop power socket until it seats securely. Verify that the laptop indicates charging or external power is connected. For safe operation, use the adapter on a stable, flat surface with adequate ventilation and avoid covering it while in use. Disconnect the adapter from the mains before unplugging from the laptop when performing hardware maintenance.

Recommendations

Use this adapter only with laptops that accept a 19.5V barrel-type input and draw no more than 3.34A. Avoid exposing the adapter to liquids, extreme temperatures or prolonged direct sunlight. If the adapter becomes unusually hot, emits a smell or causes erratic device behaviour, disconnect it immediately and have it inspected or replaced.