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Black rectangular laptop charger with 4.0×1.7 mm barrel connector and detachable mains lead

myVolts

myVolts 20V 2.25A 45W AC Adapter 4.0×1.7 mm

SKU CH-3DX8-H1JGM

A 45 W laptop charger with a 4.0 mm × 1.7 mm tip that powers Lenovo Flex, Yoga, Chromebook and V-series models from a 100–240 V supply

  • Worldwide voltage input lets you charge anywhere
  • 45 W output powers compatible Lenovo laptops efficiently
  • 0 mm × 1.7 mm barrel matches original connector
  • Certified to CE FCC ROHS UL safety standards
  • Replaces multiple Lenovo part numbers including ADL45WCD

20V 2.25A 45W AC Adapter for Lenovo Laptops

This 45W replacement charger delivers 20V at 2.25A through a 4.0×1.7 mm barrel connector. It is built for owners of Lenovo Flex, Yoga, Chromebook, V, B, E and N series laptops that require this specific voltage and tip size. The unit accepts 100-240V input for worldwide use.

Plug-in replacement with standard barrel connector

Installation is a direct swap: connect the AC cord, insert the 4.0×1.7 mm tip into the laptop power jack, and plug into a wall outlet. No drivers or configuration are needed. The main risk is selecting the wrong tip size or voltage; verify the original adapter’s output label and connector dimensions before ordering.

4.0×1.7 mm centre-positive barrel connector

The single specification that determines compatibility is the 4.0 mm outer diameter and 1.7 mm inner diameter centre-positive barrel plug. If the laptop requires a different connector geometry, USB-C power delivery, or a higher wattage rating, this adapter will not fit or supply sufficient power.

How it compares

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

Price $32.99
Pricier than about 57% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the adapter is delivering 20V 2.25A after connecting it?

The laptop should power on and charge normally; the adapter’s output label states 20V 2.25A 45W.

What comes in the box and is a mains lead included?

The package contains the 45W AC adapter with a 4.0×1.7 mm connector and an attached power cord.

Which Lenovo series does this 4.0×1.7 mm 45W unit fit?

It matches Flex 4, 5, 6, Chromebook N22, N23, N42 and Yoga 510, 520, 530, 710 models.

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