Lenovo 90W AC Power Adapter for ThinkPad Edge 11, L412, L512, T400s, T410, T410i, T410s, T410si, T510, T510i (42T4427)

When your ThinkPad's battery no longer holds a charge or you need a reliable power source for your workspace, the Lenovo 90W AC Power Adapter steps in. It delivers consistent 20V output to keep your laptop running through demanding tasks, from spreadsheets to video calls, without unexpected shutdowns. This adapter is built for users who need a dependable spare or replacement for their Lenovo ThinkPad, ensuring you're never left searching for an outlet.

Who is it for

This adapter is ideal for professionals, students, and anyone who relies on a Lenovo ThinkPad Edge 11, L412, L512, T400s, T410, T410i, T410s, T410si, T510, or T510i. It suits those who travel between home, office, and meetings, or anyone who wants a dedicated charger at their desk to avoid carrying cables back and forth. If you've lost or damaged your original adapter, this is a direct replacement that matches Lenovo's specifications.

Main features

• 90W output power for fast, efficient charging of compatible ThinkPad models.
• Wide input voltage range (AC 100-240V) for use in North America and with appropriate plug adapters worldwide.
• Round barrel connector (7.9mm x 5.5mm) ensures a secure fit with your laptop.
• Built-in protection against overload, over-voltage, and short circuits for safe operation.
• Energy Star compliant to reduce power consumption when not actively charging.
• Includes a 1.8m DC cable and 1.2m AC cable for flexible placement.

Specifications

• Product Type: AC Power Adapter
• Input Voltage: AC 100-240 V, 50/60 Hz
• Output Voltage: 20 V
• Output Current: 4.5 A
• Power Provided: 90 W
• Connector Type: Round Barrel Tip (7.9mm x 5.5mm)
• Power Plug Type: NEMA 5-15P (US/Canada)
• Colour: Black
• DC Cable Length: 1.8 m (6 ft)
• AC Cable Length: 1.2 m (4 ft)
• Operating Temperature: 0°C to 40°C
• Storage Temperature: -40°C to 70°C
• Operating Humidity: 8% to 80%
• Certifications: UL, CSA, FCC, CE, RoHS
• Compatible ThinkPad Series: Edge 11, L412, L512, T400s, T410, T410i, T410s, T410si, T510, T510i

Tips

To extend the life of your adapter, avoid wrapping the cables tightly around the brick; instead, use a loose loop. When traveling internationally, pair this adapter with a plug adapter for the local outlet type, as the input voltage automatically adjusts. Keep the adapter in a cool, dry place when not in use to prevent damage to internal components.