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Black rectangular power brick with 4.0 by 1.7 mm barrel connector and detachable mains lead

CELUX

CELUX 65W AC Adapter 20V 3.25A 4.0*1.7mm for Lenovo IdeaPad Flex

SKU CH-KDDN-9QQT0

A 65W AC adapter delivering 20V 3.25A through a 4.0*1.7mm connector, compatible with Lenovo IdeaPad 310, 320, 330S, 710S, Flex 4, 5, 6, S340 and S540 series

  • Worldwide voltage input 100V-240V for travel
  • 65W output powers demanding IdeaPad models
  • 0*1.7mm connector fits Flex 4 5 6 series
  • Replaces 45W 20V 2.25A chargers seamlessly
  • Brand new CELUX unit ready for immediate use

65 W replacement charger for Lenovo IdeaPad Flex

This 65 W AC adapter supplies 20 V at 3.25 A through a 4.0 mm by 1.7 mm barrel connector. It replaces the original Lenovo charger for IdeaPad Flex 4, Flex 5 and Flex 6 models as well as many IdeaPad 3, 5, S340, L340, S540, S145 and S150 series laptops. The unit accepts 100 V to 240 V mains input for worldwide use.

Check connector size and voltage before ordering

Verify that the laptop requires a 4.0 mm by 1.7 mm tip and 20 V output; some IdeaPad models use a different barrel size or a USB-C power input. Confirm the device’s original power rating is 65 W or 45 W at 20 V, because the adapter is also compatible with 45 W 20 V 2.25 A chargers. Ensure the AC plug style matches your local mains socket.

Compact brick with fixed cable for daily carry

The adapter body is a small rectangular brick with an integrated DC cable ending in the 4.0 mm by 1.7 mm plug. A detachable AC cord connects to the standard IEC C7 inlet on the brick, so you can swap the mains lead for travel. The fixed DC cable means no loose tip to lose, while the C7 inlet lets you pack a shorter or angled mains lead for tight desk spaces.

How it compares

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

Price $22.99
Cheaper than about 66% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

Does the package include both the power brick and the AC wall cable, or must the cord be purchased separately?

The adapter ships as a complete unit with a 4.0 mm × 1.7 mm barrel tip; the detachable AC cord is included so no extra cable is required.

Should I choose the 65 W version even though my original charger was rated at 45 W?

Yes — the 65 W unit delivers 20 V at 3.25 A and is listed as compatible with the 45 W 20 V 2.25 A charger, so it safely replaces the lower-wattage model.

What does the 65 W rating actually mean when the adapter is plugged into my IdeaPad?

It means the brick can supply up to 65 watts at 20 volts, letting the laptop charge at full speed while you work, and it will simply draw less power when the battery is near full.

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