Laptop power adapter Energy4U PA147 — 19 V, 6.3 A, 119 W, 3 mm barrel

Energy4U PA147 is a laptop power adapter that provides 19 V at 6.3 A for a maximum output of 119 W. The adapter uses a 3 mm barrel connector and is designed as a replacement or spare charger for laptops and docking stations that require matching voltage, current and plug dimensions. The compact external power supply converts AC mains voltage to a stable DC output suitable for compatible devices and includes protective circuitry to help ensure reliable operation.

Advantages

The adapter offers consistent power delivery at 19 V and up to 6.3 A, allowing for both charging and powering of compatible laptops. Its 3 mm barrel plug fits devices that require this connector size, and the 119 W maximum output supports higher-power systems and peripherals. The external form factor keeps the laptop’s internal power circuitry protected while providing a straightforward replacement option for lost or damaged original chargers.

Suitable for

• Charging compatible laptops that accept a 19 V, 6.3 A power input with a 3 mm barrel connector
• Powering docking stations and hubs that match the adapter’s output specifications
• Replacing an original charger with identical electrical and plug specifications

Key specifications

• Output voltage: 19 V DC
• Maximum output current: 6.3 A
• Maximum output power: 119 W
• Connector type: 3 mm barrel plug
• Input: AC mains (standard external power supply)
• Form factor: external AC-to-DC adapter

How to use

Confirm that the target laptop or docking station requires 19 V and a current rating equal to or below 6.3 A and that the device accepts a 3 mm barrel connector. Connect the adapter to mains power, then insert the 3 mm barrel plug into the device’s power input. When in use, monitor the device for normal charging indicators. Unplug the adapter from the mains before disconnecting from the laptop if required for safety or transport.

Usage recommendations

Use this adapter only with devices that match the specified voltage, current and connector dimensions. Avoid exposing the adapter to moisture, extreme temperatures, or physical damage. If the device becomes excessively hot, makes unusual noises, or shows irregular charging behavior, discontinue use and consult a qualified technician. Store the adapter in a dry, ventilated area when not in use.