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Compact black power brick with blue-tip 4.5x3.0mm barrel connector and detachable mains lead

Blueskysea

Blueskysea 65W AC Adapter Blue Tip 4.5x3.0mm

SKU CH-15GX-KR7MC

65W AC adapter with 4.5×3.0 mm blue barrel connector for HP ProBook, EliteBook, Pavilion and Envy models

  • TypeAC Adapters
  • Delivers 65W power for demanding workloads
  • Also runs 45W laptops at 19.5V 2.31A
  • Accepts 110-240V input for worldwide use
  • Blue-tip 4.5x3.0mm barrel fits listed HP models
  • Replaces multiple HP part numbers including 741727-001

65W Blue Tip AC Adapter

This 65W AC adapter supplies 19.5V at 3.33A through a 4.5mm by 3.0mm blue barrel connector. It is built for owners of compatible HP ProBook, EliteBook, Pavilion x360 and Envy x360 laptops who need a replacement or spare charger. The unit accepts 110-240V input at 50-60Hz for worldwide use.

Sustained 65W delivery

The adapter maintains its full 65W output continuously rather than only in short bursts, so the laptop can run demanding workloads while charging the battery. It also operates safely with systems rated for 45W at 19.5V and 2.31A, regulating current to match the lower requirement without overheating.

Replaces 45W and 65W HP chargers

This unit replaces original HP adapters listed under part numbers such as 710412-001, L25296-002, 740015-003 and 741727-001 across multiple generations. The upgrade from a 45W brick is worthwhile when the laptop draws more power under load or when a single charger must serve both 45W and 65W models.

Highlights

  • Delivers 65W power for demanding workloads
  • Also runs 45W laptops at 19.5V 2.31A
  • Accepts 110-240V input for worldwide use
  • Blue-tip 4.5x3.0mm barrel fits listed HP models
  • Replaces multiple HP part numbers including 741727-001

Specifications

TypeAC Adapters

Questions about this item

Does the 65W adapter run hot or noisy when powering a laptop all day?

The unit delivers 19.5V at 3.33A and accepts 110-240V input, so it operates within standard AC-adapter thermal limits; no fan is present, so noise is minimal.

What must I already own for this charger to work with my HP laptop?

You need an HP model that uses a 4.5mm x 3.0mm blue barrel tip and requires 19.5V — compatible series include ProBook 440, 450, 640, EliteBook 840, Pavilion x360 and Envy x360.

Will this 65W unit safely charge an older 45W HP laptop that uses the same blue tip?

Yes — the adapter outputs 19.5V 3.33A (65W) and is explicitly rated to work with 19.5V 2.31A (45W) laptops sharing the 4.5mm x 3.0mm connector.

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