Lenovo Power Converter Tip – 7.9×5.5mm Round Jack to Square Slim Tip Adapter for ThinkPad

Overview

Lenovo Power Converter Tip (7.9×5.5mm Round Jack to Square Slim Tip) is a power adapter tip converter designed for ThinkPad users who have an older-style round Lenovo charger plug but need the newer Lenovo square slim tip connection. It’s a simple way to reuse an existing adapter when the only problem is the connector shape.

Key Features

• Round to Slim Tip conversion: Converts 7.9×5.5mm round jack to Lenovo square slim tip.
• ThinkPad-friendly: Made for Lenovo ThinkPad charging setups that use the rectangular/slim tip style.
• Reuse your charger: Helps you keep using your existing Lenovo round-tip adapter instead of buying a full new charger.
• Compact & portable: Small adapter tip—easy to carry in your laptop bag as a spare.

Important Notes (Please Read)

• Adapter tip only: This converter changes the connector type only—it does not convert voltage (V), wattage (W), or charging speed.
• Match power requirements: Your charger must have the correct output (typically Lenovo/ThinkPad uses 20V, but confirm your exact model before use).
• Tip type matters: Lenovo has multiple charging tip styles (round, slim tip/square, and USB‑C on newer models). Please confirm your laptop’s charging port type before ordering.

Specifications

What’s in the Box

• 1 × Lenovo Power Converter Tip (7.9×5.5mm Round to Square Slim Tip)

FAQ

Will it charge any ThinkPad?
It will work only with ThinkPad models that use the square slim tip charging port. If your ThinkPad charges via USB‑C, this adapter is not the correct type.

Does it change voltage or wattage?
No. This is a physical connector adapter only—your charger must already match your laptop’s required voltage and have sufficient wattage.

How do I confirm compatibility?
Check your laptop’s charging port shape (square slim tip) and your charger plug (7.9×5.5mm round). If both match this converter’s in/out connectors, it should fit.