DMKAOLLK 65W AC Adapter for Lenovo 4.0×1.7mm Tip

DMKAOLLK 65W AC adapter is a direct replacement power charger for many Lenovo IdeaPad, Flex and Yoga laptops that use a 4.0mm x 1.7mm round tip.

This compact replacement charger supplies up to 65 watts (20V, 3.25A) of regulated power and works with an extensive list of Lenovo part numbers and models so you can restore reliable charging without buying an OEM brick. It supports worldwide AC input (100–240V) and includes the common round connector used on IdeaPad 1/3/5 series, Flex 4/5/6 families, Yoga notebooks and a range of V- and S-series machines. The unit is intended as a like-for-like power cord and adapter substitute — check your device’s required voltage and plug size to confirm compatibility before ordering.

Which Lenovo models and part numbers does this charger support?

This DMKAOLLK adapter is compatible with many Lenovo consumer and ultraportable models. It replaces common factory part numbers and fits a wide range of IdeaPad, Flex and Yoga SKUs as well as several Chromebook and V-series laptops.

• Compatible P/Ns: ADL45WCC, ADP-45DW B, ADLX65CCGC2A, PA-1450-55LL and similar Lenovo part numbers.
• IdeaPad models: IdeaPad 1 / 3 / 5 series in multiple sizes (11, 14, 15-inch variants) and IdeaPad 330/330s/310/320/530s/530 series.
• Flex & Yoga: Flex 4/5/6 families, Yoga 710/720/510, and related S-series machines.
• Also fits: S145, S340, L340, Chromebook N22/N23/N42 and some V14/V15/V17 laptops.

How much power does the adapter deliver and is it safe for international use?

The adapter outputs 20V at up to 3.25A (65W) which is suitable for many mid-range Lenovo notebooks. Input accepts 100–240V AC at 50–60Hz, so it works with global voltages when paired with the correct plug or travel adapter. It is designed for charging and powering compatible laptops but always compare your original adapter values to confirm match.

• Output rating: 20V, 3.25A (65W max).
• Input range: AC 100–240V, 1.5A, 50–60Hz for worldwide use.
• Connector: 4.0mm x 1.7mm round tip used by many Lenovo models.
• Usage tip: Verify your laptop’s voltage/amperage label before purchase.

Will this charger physically fit my laptop and how do I verify the plug type?

The DMKAOLLK replacement uses a 4.0mm by 1.7mm round tip commonly found on older IdeaPad and Flex machines. To confirm fit, compare the diameter and inner pin measurements of your current charger or consult the laptop’s power port specification in the service manual. If you need a different plug shape or a USB-C PD supply, this specific adapter will not be suitable.

• Connector dimensions: 4.0mm exterior, 1.7mm inner diameter (round).
• Measure your existing plug to ensure exact match.
• Not compatible with USB-C power-only laptops or non-round proprietary ports.
• Contact product support with your laptop model string if unsure.

What should I expect in terms of build, performance and warranty?

This third-party adapter is built to replace a worn or lost OEM charger and offers stable charging at the specified voltage and amperage. Many buyers choose aftermarket units for lower cost and quick availability; look for seller warranties and return policies if reliability or fitment questions arise. Avoid using damaged cables and replace the adapter if it shows frayed wires, excessive heat, or intermittent charging.

• Performance: stable 65W output for supported Lenovo laptops.
• Safety: designed for regulated output, but inspect for damage before use.
• Support tip: verify seller warranty/return terms prior to purchase.
• Maintenance: unplug during storms and avoid crushing the cable to extend life.

Who is this for? If your Lenovo laptop originally used a 4.0mm x 1.7mm round DC plug and required around 65W (20V / ~3.25A), this DMKAOLLK replacement is a cost-effective option to restore charging capability. It suits students, professionals and home users who need a reliable spare or replacement for IdeaPad 1/3/5, Flex 4/5/6, Yoga 710/720 and many S-, L- and V-series Lenovo notebooks — just verify model and plug size before buying.