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Rectangular black power brick with 7.9 by 5.5 mm barrel tip and three-prong inlet

myVolts

myVolts 20V 65W 90W AC Adapter 7.9*5.5mm tip

SKU CH-1RDQ-XMWJH

20V AC adapter delivers 65W or 90W via a 7.9*5.5mm tip for compatible Lenovo ThinkPad laptops and docking stations

  • Powers many ThinkPad models with one adapter
  • Delivers 65W or 90W at 20V for flexible charging
  • Accepts 100-240V input for worldwide use
  • 9*5.5mm pin tip fits listed ThinkPad ports
  • Built-in overload, over-voltage and short-circuit protection

20V 65W 90W AC Adapter for ThinkPad

This 20V AC adapter delivers 65W or 90W output through a 7.9*5.5mm pin tip and supports 100-240V input. It replaces Lenovo part numbers such as 40Y7659, 40Y7661 and PA-1900-171. The unit suits owners of ThinkPad T430, T420, T520, X220 and similar models who need a direct replacement charger.

Installation is a direct plug-in

Connect the three-prong AC cord to the brick, insert the 7.9*5.5mm tip into the laptop and power on. The large pin tip must seat fully; a loose fit causes intermittent charging. No drivers or configuration are required, but verify the tip polarity matches the original before use.

Sustained load runs within protection limits

Built-in overload, over-voltage and short-circuit protection engage if the adapter is pushed continuously at 90W. The brick warms under full load but remains stable for typical office sessions. Users running heavy workloads for many hours should ensure ventilation around the power brick.

Highlights

  • Powers many ThinkPad models with one adapter
  • Delivers 65W or 90W at 20V for flexible charging
  • Accepts 100-240V input for worldwide use
  • 9*5.5mm pin tip fits listed ThinkPad ports
  • Built-in overload, over-voltage and short-circuit protection

Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the adapter is working after I connect it?

The ThinkPad charging indicator should light up and the battery icon in Windows must show it is charging when the 7.9*5.5mm tip is firmly seated.

What comes in the package and what must I supply?

The box contains one AC power adapter and one AC power cord with a 3-pronged plug; you only need a working mains socket.

My laptop needs 65 W — should I choose this 65W/90W model or a lower-wattage one?

This unit delivers both 65 W and 90 W at 20 V, so it safely covers any ThinkPad listed that draws 65 W or less.

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