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Black rectangular 45 W AC adapter with cable

Battery Technology Inc.

Battery Technology Inc. GX20M33579BTI 45 W ac adapter

SKU CH-4KJH-ADR00 MPN GX20M33579BTI

45 W AC adapter compatible with Lenovo Yoga 910, 720, IdeaPad 720S, Miix 720 and N23 Yoga Chromebook models

  • 45 W output powers compatible Lenovo notebooks
  • 24 month limited warranty covers manufacturing defects
  • Supports Yoga 910, 720 and IdeaPad 720S models
  • Matches OEM part GX20M33579 for direct replacement
  • UPC 886734884853 identifies genuine Battery Technology Inc. unit

Power for Lenovo Yoga and IdeaPad

This 45 W AC adapter is built for a range of Lenovo notebooks including the Yoga 910-13IKB, Yoga 720-13IKB, IdeaPad 720S-13IKB, IdeaPad Miix 720-12IKB and the N23 Yoga Chromebook. It replaces the OEM part GX20M33579 and ships new with a 24-month limited warranty.

Plug-in replacement, check the tip

Installation is a simple swap: unplug the old brick, connect the barrel tip to the laptop and plug the AC cord into the wall. The most common issue is a loose or worn DC jack on the notebook itself, which can make the new adapter appear faulty when the connection is actually intermittent.

Verify model and wattage first

Before ordering, confirm the exact model number on the bottom of your laptop matches one of the listed Yoga or IdeaPad series and that the original charger is rated for 45 W. Using a lower-wattage unit on a higher-draw system will not charge correctly, while a higher-wattage brick is unnecessary for these models.

Highlights

  • 45 W output powers compatible Lenovo notebooks
  • 24 month limited warranty covers manufacturing defects
  • Supports Yoga 910, 720 and IdeaPad 720S models
  • Matches OEM part GX20M33579 for direct replacement
  • UPC 886734884853 identifies genuine Battery Technology Inc. unit

Specifications

BrandBATTERY TECHNOLOGY INC.
Shipping weight0.45 kg
Package size183 × 112 × 51 mm

Questions about this item

How can I verify the 45 W adapter is working after connecting it to my Yoga 910-13IKB?

The notebook charging indicator should light up and the battery level must increase while the unit is plugged in.

What comes in the box with the GX20M33579BTI and is a power cord included?

The package contains the 45 W AC adapter unit only; a compatible AC power cord must be purchased separately if you do not already have one.

Which adapter version matches my IdeaPad 720S-13IKB 81A8?

The GX20M33579BTI is listed as compatible with the IdeaPad 720S-13IKB 81A8, so this single 45 W model is the correct choice.

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