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Rectangular black power brick with 4.0 by 1.7 mm barrel connector and attached mains lead

PISKEKAT

PISKEKAT 45W 20V 2.25A AC Adapter 4.0 x 1.7mm for Lenovo IdeaPad

SKU CH-D1N4-KESK6

45 W AC adapter with 4.0 × 1.7 mm tip powers compatible Lenovo IdeaPad, Yoga and Flex laptops from 100 to 240 V input

  • Battery TypeLaptop Batteries
  • Delivers 45 W at 20 V 2.25 A for reliable charging
  • Accepts AC 100-240 V 50/60 Hz for worldwide use
  • 0 x 1.7 mm barrel fits listed IdeaPad models
  • Compatible with Lenovo part numbers ADL45WCC PA-1450-55LL ADP-45DW B GX20L23044
  • Brand-new unit replaces 45 W adapters for Yoga Flex Miix series

45W 20V AC adapter for IdeaPad

This 45W AC adapter delivers 20V at 2.25A through a 4.0 x 1.7mm connector. It replaces Lenovo part numbers ADL45WCC, PA-1450-55LL and ADP-45DW B. The unit accepts 100-240V input at 50/60Hz for worldwide use. It is built new for owners of compatible IdeaPad, Yoga, Flex and Miix models.

Steady 45W output under load

The adapter maintains its rated 45W continuously rather than only in short bursts. Output stays at 20V 2.25A during extended charging sessions. It does not support higher-wattage 65W or 90W tip configurations. Thermal protection engages if the unit exceeds safe operating temperature.

Simple barrel-plug installation

Installation requires aligning the 4.0 x 1.7mm barrel tip with the laptop power jack and pressing until seated. The most common issue is ordering this 45W unit for a laptop that needs a 65W or 90W square-tip connector. Verify the connector size and wattage printed on the original charger before purchase.

Highlights

  • Delivers 45 W at 20 V 2.25 A for reliable charging
  • Accepts AC 100-240 V 50/60 Hz for worldwide use
  • 0 x 1.7 mm barrel fits listed IdeaPad models
  • Compatible with Lenovo part numbers ADL45WCC PA-1450-55LL ADP-45DW B GX20L23044
  • Brand-new unit replaces 45 W adapters for Yoga Flex Miix series

Specifications

Battery TypeLaptop Batteries

Questions about this item

How much heat or noise does the 45 W adapter produce when it runs all day?

The unit delivers 20 V at 2.25 A with a 100–240 V input, so it operates silently with no fan and only warm-case temperatures typical of a 45 W brick.

What must my laptop already have for this charger to connect and work?

Your laptop needs a 4.0 mm by 1.7 mm barrel port and must accept 20 V at 2.25 A; the adapter will not fit USB-C square yellow tips or higher-wattage 65 W or 90 W models.

Will this 45 W brick safely charge my older IdeaPad 310-15ISK and newer IdeaPad 330S-15ARR together?

Yes, both models are listed as compatible and each requires the same 20 V 2.25 A output through the 4.0 x 1.7 mm connector.

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