Lenovo 45N0511 90W AC Power Adapter - Black

When you're rushing between meetings or settling in for a long work session at a café, the last thing you want is a dead laptop battery. The Lenovo 45N0511 90W AC Power Adapter is the dependable power source that keeps your ThinkPad, IdeaPad, or Yoga notebook running at full capacity. This genuine Lenovo adapter delivers a steady 90 watts of power, converting AC wall current into the precise 20V DC your laptop needs. Its slim tip connector plugs securely into compatible Lenovo models, and the black finish blends seamlessly with your existing gear. Whether you're at your desk, in a conference room, or traveling across time zones, this adapter ensures you stay productive without interruption.

Key specifications

• Power output: 90 W
• Output voltage: 20 V DC
• Output current: 4.5 A
• Input voltage: 100 - 240 V AC (works worldwide)
• Input frequency: 50/60 Hz
• Connector: Lenovo Slim Tip (rectangular)
• DC cable length: 1.7 m
• Colour: Black
• Energy efficiency: Energy Star compliant
• Protection: Over-voltage, over-current, short-circuit, over-temperature
• Operating temperature: 5°C to 40°C
• Certifications: CE, FCC, UL, RoHS, TUV

Why choose it

This adapter is built to Lenovo's exacting standards, ensuring perfect compatibility and reliable performance. The slim tip connector is designed for a secure fit, reducing the risk of accidental disconnection. With a wide input voltage range, it automatically adapts to power outlets in over 150 countries, making it an ideal travel companion. The integrated protection circuitry safeguards both the adapter and your laptop from electrical anomalies, while the Energy Star compliance helps reduce power consumption when not actively charging. The 1.7-meter DC cable gives you flexibility to position your laptop comfortably, even when the wall outlet is not nearby.

Ideal use cases

• Office workers who need a reliable spare adapter for their desk or docking station.
• Business travelers who require a compact, universal-voltage power solution.
• Students and remote workers who move between home, library, and coffee shops.
• IT departments stocking replacement adapters for corporate Lenovo fleets.
• Anyone who wants a genuine Lenovo adapter to avoid compatibility issues with third-party chargers.

Good to know

The Lenovo 45N0511 is a genuine original equipment manufacturer (OEM) part, not a third-party clone. It includes a region-specific power cord, so you can plug directly into local outlets. The adapter operates quietly and remains cool under normal use, thanks to efficient thermal design. For best results, use only with compatible Lenovo notebooks that require a 90W slim tip adapter. Check your laptop's specifications or original adapter to confirm compatibility. This adapter is backed by Lenovo's quality assurance and is RoHS compliant, reflecting Lenovo's commitment to environmental responsibility.