Fonte de alimentação Dell 240W 19,5V Modelo K972H para portáteis Dell compatíveis

The Dell 240W 19.5V power adapter model K972H is an external AC adapter designed to supply stable power and charge batteries for compatible Dell laptops. It provides up to 240 watts of output power at a nominal voltage of 19.5V and is intended as a replacement or spare unit for systems that specify this power rating. The adapter includes the power brick and a compatible DC connector to interface with supported laptop charging ports, enabling use at home, in the office, or during travel.

Advantages

This power adapter provides consistent power delivery at the rated 240W output and a regulated 19.5V voltage to support high-performance laptop workloads and battery charging. The external design keeps heat away from the laptop chassis and simplifies replacement compared with internal power supplies. The adapter is compatible with systems that require the same voltage and wattage, offering straightforward interchangeability for users needing a spare or replacement unit.

Suitable for

• Charging and powering Dell laptops that require 19.5V and up to 240W input
• Replacing a lost or damaged AC adapter at home or office
• Keeping as a spare for travel or mobile workstations
• Providing stable power for resource-intensive tasks such as multimedia editing or large calculations

Key specifications

• Output power: up to 240 W
• Output voltage: 19.5 V
• Adapter type: external AC to DC power adapter (power brick)
• Intended use: laptop power and battery charging
• Input: AC mains (standard voltage range for regional markets)

How to use

Connect the adapter to an appropriate AC mains outlet using the supplied mains lead, then insert the DC connector firmly into the laptop's power port until it seats. Ensure the laptop model specifies 19.5V and supports a 240W adapter before use. When connected, the adapter will supply power to the laptop and charge the battery as required. Disconnect the adapter by removing the DC connector from the laptop and unplugging the mains lead when not in use or before transporting the adapter.

Recommendations

Use the adapter in a well-ventilated area and avoid covering the power brick during operation to prevent overheating. Verify compatibility with your laptop model and inspect the connector and cables regularly for wear. If the adapter becomes hot to the touch, produces unusual noises, or shows visible damage, discontinue use and replace it.