AC Power Adapter QOLTEC 51033 for laptops, 45 W, 19.5 V, 2.31 A, 220–240 V, indoor, black, 1.7 m cable

Qoltec 51033 is a 45W power adapter designed for indoor use with HP ultrabooks and other compatible laptops. It provides a 19.5V output at 2.31A and uses a 4.5×3.0 mm plug with a center pin. The compact black adapter (90 mm × 111 mm) includes a 1.7 m cable and Velcro strap for cable management and is built for stable, efficient power delivery.

Advantages

The Qoltec power adapter offers high efficiency to reduce energy consumption and is manufactured from quality materials for improved durability and stable operation. It includes multiple protection mechanisms — overvoltage, overload, short-circuit and thermal protection — to safeguard both the adapter and the connected laptop. The package contains the adapter, the 4.5×3.0+pin plug and a Velcro strap to organise the cable.

Suitable for

• HP ultrabooks and laptops requiring 19.5V, 2.31A and a 4.5×3.0 mm + pin connector
• Users seeking a compact indoor 45W replacement adapter
• Situations where stable power and device protection are required

Key specifications

• Model: Qoltec 51033
• Output power: 45W
• Output voltage/current: 19.5V / 2.31A
• Connector: 4.5×3.0 mm + pin
• Input voltage: 220–240V
• Cable length: 1.7 m
• Colour: Black
• Dimensions (W×D): 90 mm × 111 mm
• Weight: 0.159 kg
• EAN: 5901878510330

How to use

Check the laptop rating label for the required POWER (W), VOLTAGE (V) and CURRENT (A) values before use. Ensure the adapter’s voltage matches the laptop specification (allowable tolerance ±0.5V). The adapter’s current and power ratings may be equal to or higher than those on the laptop label. Connect the 4.5×3.0 mm + pin plug to the laptop socket and insert the adapter into a 220–240V mains outlet. Use the Velcro strap to secure and shorten the cable if needed.

Recommendations

Match the connector size exactly to the laptop’s original plug; measure the plug if necessary. Prefer adapters with equal or higher power/current ratings than the laptop requires, but never use an adapter with an incorrect voltage. Keep the adapter ventilated to avoid thermal shutdown and unplug it during prolonged inactivity.