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Compact black USB-C power brick with foldable pins

Lenovo

Lenovo 45W USB-C AC Adapter 4X20M26252 100-240V

SKU CH-JJVR-9K8NP

A 45 W USB-C power adapter accepting 100–240 V input for compatible ThinkPad notebooks and tablets

  • 45 W USB-C power delivery for fast charging
  • 100-240 V input supports worldwide voltage ranges
  • USB Type-C connector fits compatible ThinkPad notebooks and tablets
  • 4X20M26252 part number ensures correct replacement
  • New condition guarantees full manufacturer performance

Lenovo 45W USB-C AC Adapter

The Lenovo 45W USB-C AC Adapter is a compact power supply designed for ThinkPad notebooks and tablets that charge over USB Type-C. It delivers up to 45 watts from a 100-240 volt input, making it suitable for home, office or travel use. Buyers who need higher wattage for larger laptops or docking stations will need a different adapter.

45 watt capacity and headroom

The adapter provides 45 watts of continuous power, enough to charge compatible ultraportable ThinkPad models and maintain battery level during typical productivity work. It will run out of headroom on systems that draw more than 45 watts under load, such as mobile workstations or gaming laptops, causing slower charging or battery drain during intensive tasks.

Thermals, noise and power draw

As a sealed external brick with no moving parts, the unit operates silently and generates only modest warmth during normal charging. It draws up to 45 watts from the mains at 100-240 volts AC, converting it efficiently to the USB-C output without audible fan noise or excessive heat buildup on a desk surface.

Highlights

  • 45 W USB-C power delivery for fast charging
  • 100-240 V input supports worldwide voltage ranges
  • USB Type-C connector fits compatible ThinkPad notebooks and tablets
  • 4X20M26252 part number ensures correct replacement
  • New condition guarantees full manufacturer performance

Specifications

BrandLenovo

Questions about this item

Will this 45W USB-C adapter power a ThinkPad that originally shipped with a 45W barrel charger?

Yes, it delivers the same 45 watt output through USB-C and supports the 100-240 V input range, so it replaces a 45W barrel unit for compatible ThinkPad notebooks and tablets.

How can I confirm the adapter is charging correctly once plugged in?

The ThinkPad charging indicator lights when power is accepted, and the battery icon in Windows or Linux shows the charging state with the 45W input detected.

Does the box include a detachable AC cable or only the adapter brick with fixed USB-C lead?

The adapter ships as a single unit with a fixed USB-C output cable; the AC plug is integrated for 100-240 V mains, so no separate cable is required.

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