Power Adapter Lenovo 45N0290

The Lenovo 45N0290 power adapter is a compact indoor power supply designed for laptop use. It delivers 45 W of output power and accepts a wide input voltage range of 100–240 V, making it suitable for use in different countries with appropriate mains connections. The adapter has a slim black enclosure with dimensions of 44 mm (width) × 93 mm (depth) × 28.5 mm (height) and a lightweight construction of approximately 0.2 kg, providing an easy-to-carry option for everyday mobile charging.

Advantages

This adapter offers a stable 45 W output that supports efficient battery charging and regular laptop operation. The wide input voltage range allows reliable performance across standard mains voltages worldwide when used with the correct local plug. Its compact size and low weight reduce luggage bulk and improve portability for users who travel or commute frequently. The neutral black finish integrates unobtrusively with most laptop designs and work environments.

Suitable for

• Charging compatible Lenovo laptops and ultrabooks that require up to 45 W power
• Home, office, and travel use where a compact charger is required
• Replacing a lost or damaged original compact 45 W adapter

Key specifications

• Output power: 45 W
• Input voltage: 100–240 V AC
• Colour: Black
• Dimensions (W × D × H): 44 mm × 93 mm × 28.5 mm
• Weight: approximately 0.2 kg

How to use

Connect the adapter to a suitable mains outlet using the appropriate country-specific power cord or plug. Attach the adapter’s DC connector to the laptop’s power inlet until it seats securely. Ensure the laptop is receiving power by checking the device’s charging indicator or power status. Disconnect the adapter from the laptop and mains when not in use. Allow the adapter to cool before storing it in confined spaces.

Usage recommendations

Use the adapter indoors on a stable, dry surface and avoid exposure to moisture or excessive heat. Verify compatibility with your laptop model and recommended input specifications before use. Replace any damaged cords or connectors and do not attempt to open or repair the adapter yourself; refer servicing to qualified technicians.