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Black rectangular AC adapter with round 7.9 x 5.5 mm tip and detachable power cord

myVolts

myVolts 90W 20V 4.5A AC Adapter for Lenovo ThinkPad

SKU CH-KD3X-BBZFQ

90 W 20 V 4.5 A AC adapter with 7.9 × 5.5 mm round tip for many Lenovo ThinkPad T, X, L and Edge models

  • 90 W output charges compatible ThinkPad models quickly
  • 20 V 4.5 A DC delivery matches original adapter specs
  • 100–240 V input works on mains worldwide
  • 9 mm × 5.5 mm round tip fits listed Lenovo sockets
  • Over-current and over-voltage protection guards connected hardware

What this adapter powers

This 90W 20V 4.5A AC adapter supplies power to a wide range of Lenovo ThinkPad models including T, X, L and Edge series laptops. It replaces original part numbers such as 92P1104, 92P1154, PA-1650-16 and FRU 92P1104. The unit ships new with a DC power cord included. Builders needing a different connector size or voltage should look elsewhere.

Capacity and headroom

The adapter delivers 90 watts at 20 volts and 4.5 amps from a 100-240V 50-60Hz input. It comfortably runs compatible ThinkPad T400, T410, T420, T430, T500, T510, T520, T530, X200, X201, X220, X230, L420, L430, L520, L530 and Edge 14, 15 models. It will not support systems requiring higher wattage or a different output voltage.

The deciding specification

The connector measures 7.9 by 5.5 millimetres with a round tip and three prongs. This exact geometry determines whether the adapter fits your laptop. Verify the connector on your original charger matches these dimensions before ordering.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 56% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 7.9 x 5.5 mm round tip fit the ThinkPad T420 I still use?

The adapter uses a 7.9 x 5.5 mm three-prong round tip, which matches the DC input on ThinkPad T420 and the other models listed in the compatibility data.

How can I confirm the 90W unit is delivering 20 V at 4.5 A after I plug it in?

The brick shows a steady power LED when the 100-240 V mains connection is live and the 20 V 4.5 A output is present; the ThinkPad battery icon should immediately indicate charging.

Does the package include the mains lead or only the 90W brick?

The box contains the 90W AC adapter and a separate DC power cord that connects the brick to the wall outlet.

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