Lenovo 90W Slim-Tip Adapter
90W · Lenovo slim-tip
The Lenovo 90W Slim-Tip Adapter is a 90W replacement charger that connects via the Lenovo slim-tip using Lenovo slim-tip DC barrel. It is suitable for Lenovo only laptops rated 90W or below.
- Wattage
- 90W
- Voltage
- 20V DC
- Amperage
- 4.5A
- Connector
- Lenovo slim-tip
- Connector size
- Rectangular slim tip (yellow)
- Protocol
- Lenovo slim-tip DC barrel
- E-marked cable required
- No
- Risk level
- medium
- Verification
- verified
Safety information
- For ThinkPad slim-tip models needing 90W. Safely powers 65W slim-tip laptops.
Higher-wattage compatibility
A Lenovo slim-tip charger at 90W safely powers any Lenovo slim-tip laptop rated 90W or below. A charger rated HIGHER than the original wattage is safe, provided connector type, polarity and (for barrel) tip size and voltage all match. The laptop draws only the current it needs.
Example: a 90W HP Smart adapter safely powers a 65W HP laptop. A 65W USB-C PD charger safely powers a 45W USB-C laptop.
Connector
Uses the Lenovo slim-tip — how to identify it→Compatible laptop families
What to search for
When buying a replacement, search for “Lenovo 90W slim tip charger” and confirm the wattage and connector match the specs above.
Frequently asked questions
Can I use a higher-wattage Lenovo slim-tip charger instead of the Lenovo 90W Slim-Tip Adapter?＋
Yes. A charger with the same connector (Lenovo slim-tip) at an equal or higher wattage is safe — your laptop only draws the power it needs. A lower-wattage charger may charge slowly or not at all.
Which laptops use the Lenovo 90W Slim-Tip Adapter?＋
It powers Lenovo slim-tip laptops rated 90W or below, including Lenovo ThinkPad.