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Black rectangular Lenovo 45W AC adapter with 4.0×1.7 mm barrel connector

Lenovo

Lenovo PA-1450-55LL 45W ac adapter 20V 2.25A 4.0×1.7 mm

SKU CH-07WR-W51P1 MPN PA-1450-55LL

45W AC adapter delivering 20V 2.25A through a 4.0×1.7 mm tip for IdeaPad and Yoga laptops

  • ColorBlack
  • TypeCharger
  • CompatibilityADL45WCC 5A10H43625 PA-1450-55LL
  • Delivers 45 W output for reliable charging
  • Accepts 100-240 V input for worldwide use
  • 20 V 2.25 A matches original Lenovo specifications
  • 0×1.7 mm barrel fits IdeaPad and Yoga models
  • Genuine Lenovo OEM part ensures safe operation

45 W AC adapter for Lenovo IdeaPad and Yoga

This 45 W Lenovo power adapter delivers 20 V at 2.25 A through a 4.0 × 1.7 mm barrel connector. It accepts a worldwide 100 – 240 V, 50 – 60 Hz mains supply. The unit is a new, original OEM replacement for part numbers PA-1450-55LL and ADL45WCC. It is finished in black.

Who this suits and who should look elsewhere

This charger suits owners of listed IdeaPad 100, 100s, 110, 110s, 310, 510, 710 and 710s models, plus Yoga 510 and 710 and Flex 4 series laptops that require the 4.0 × 1.7 mm tip. Buyers whose laptops use a different connector size, a higher wattage requirement or a USB-C power input should look elsewhere.

Deciding specification: 4.0 × 1.7 mm barrel

The 4.0 mm outer and 1.7 mm inner diameter of the output plug is the single detail that determines physical compatibility. If the laptop’s charging port does not match this exact pin size, the adapter will not fit regardless of voltage or wattage.

Highlights

  • Delivers 45 W output for reliable charging
  • Accepts 100-240 V input for worldwide use
  • 20 V 2.25 A matches original Lenovo specifications
  • 0×1.7 mm barrel fits IdeaPad and Yoga models
  • Genuine Lenovo OEM part ensures safe operation

Specifications

BrandLenovo
ModelADL45WCC
Part NumberPA-1450-55LL
ColorBlack
TypeCharger
CompatibilityADL45WCC 5A10H43625 PA-1450-55LL

Questions about this item

Does the 45 W adapter run hot or make fan noise when powering an IdeaPad 100 all day?

The unit has no fan and is rated for continuous 45 W output at 20 V 2.25 A; typical warmth is normal for a compact brick.

What must I already own to use this charger with my IdeaPad 310?

A laptop that accepts a 4.0 × 1.7 mm barrel tip at 20 V and an AC mains cable with a C5 / C6 connector for the 100–240 V input.

Will this 45 W brick charge my older IdeaPad 110 or Yoga 510 that originally came with a higher-wattage unit?

The adapter is listed for IdeaPad 100, 100s, 110s, 110, 310, 510, 710, 710s and Yoga 710, 510, Flex 4 models; it supplies 45 W at 20 V.

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