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Black rectangular Lenovo 45W AC adapter with 4.0 by 1.7mm barrel plug

Lenovo

Lenovo PA-1450-55LL 45W 20V 2.25A ac adapter

SKU CH-XVRJ-KXNVM MPN PA-1450-55LL

A 45 W AC power adapter delivering 20 V at 2.25 A with a 4.0 × 1.7 mm pin for compatible IdeaPad and Yoga laptops

  • Product colorBlack
  • Product typeCharger
  • 45W output charges compatible IdeaPad and Yoga laptops efficiently
  • 20V 2.25A delivery matches original adapter specifications
  • 100-240V 50-60Hz input works worldwide without a converter
  • 0*1.7mm pin fits listed Lenovo models securely
  • Genuine Lenovo PA-1450-55LL part ensures reliable compatibility

Lenovo 45W IdeaPad AC Adapter

This 45-watt Lenovo power adapter supplies 20 volts at 2.25 amps for compatible IdeaPad and Yoga laptops. It accepts a 100 to 240 volt input at 50 to 60 hertz for worldwide use. The unit comes in black and carries part number PA-1450-55LL.

Who this suits and who should look elsewhere

Owners of listed IdeaPad 100, 110, 310, 510, 710 and Yoga 510 or 710 models needing a replacement 45W charger with a 4.0 by 1.7 mm barrel tip can use this unit. Buyers whose laptops require a higher wattage or a different connector size should look elsewhere.

Deciding specification: 4.0 by 1.7 mm pin size

The barrel connector measures 4.0 mm outer diameter by 1.7 mm inner diameter. This single dimension determines whether the adapter will physically fit and power the target laptop. Verify the port on your device matches this pin size before purchasing.

How it compares

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

Price $18.99
Cheaper than about 74% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameLenovo
Model nameIdeapad Yoga
Part numberPA-1450-55LL
Product colorBlack
Product typeCharger

Questions about this item

Is the 4.0×1.7 mm pin the only difference between the listed 45 W adapters?

The PA-1450-55LL uses a 4.0×1.7 mm barrel connector; other Lenovo 45 W units may have different pin sizes, so match the tip to your laptop.

Will the 20 V 2.25 A output run my IdeaPad 510 at full speed?

Yes, 20 V at 2.25 A delivers the 45 W the IdeaPad 510 expects, so the system charges and performs normally.

Does the 100–240 V 50–60 Hz input cover every mains supply worldwide?

The adapter accepts 100–240 V at 50–60 Hz, covering standard household voltages in most countries.

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