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Black rectangular 65W AC adapter with 7.4mm barrel connector and detachable power cord

DELL SK90185350 65W Laptop Charger 7.4mm×5.0mm

SKU CH-KFNQ-QVZQ2

65W AC adapter delivers 18.5V at 3.5A through a 7.4mm×5.0mm connector for compatible HP laptops

  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current11.8A
  • Power adapter wattage85 W
  • Measurements14.33 in W × 12.83 in H × 9.06 in D
  • Compatible withLaptops
  • Delivers 65W output for reliable laptop charging
  • 4mm×5.0mm connector fits many HP models
  • 100-240V input works worldwide without converter
  • Includes power adapter and AC cable
  • circuit protection safeguards connected devices

What this charger replaces

The DELL SK90185350 is a 65W AC adapter built for HP laptops that require a 7.4mm by 5.0mm barrel connector. It suits owners of Pavilion dm4, dv4, dv5, dv6, dv7 and g6 series machines as well as EliteBook 720, 725, 740, 745, 755, 810, 820, 840, 850 G1 G2 and ProBook 430, 440, 450, 455 G1 G2 models needing a direct replacement.

Power limits of the 65W brick

The adapter delivers 18.5V at 3.5A from a 100-240V 50-60Hz 1.8A input, so it cannot run systems that draw more than 65W or that expect a different voltage. The fixed 7.4mm by 5.0mm tip means it will not fit laptops with smaller, larger or centre-pin connectors even if the wattage matches.

Fitting it and common pitfalls

The package includes the power brick and a detachable AC cord, so installation is a matter of plugging the cord into the brick and the barrel into the laptop. The most frequent issue is ordering the wrong tip size; verify the original connector measures 7.4mm outer and 5.0mm inner diameter before purchase.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 60% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameSK90185350
Part numberSK90185350
Power
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current11.8A
Power adapter wattage85 W
Size & build
Measurements14.33 in W × 12.83 in H × 9.06 in D
Compatibility
Compatible withLaptops

Questions about this item

Which 65 W charger matches my laptop's 7.4 mm × 5.0 mm connector?

This unit uses a 7.4 mm outer and 5.0 mm inner diameter tip, the size listed for the HP EliteBook and ProBook models in the compatibility list.

What does the 65 W rating deliver to the laptop?

The adapter outputs 18.5 V at 3.5 A, providing up to 65 W to the system.

What input voltage range does the 7.4 mm × 5.0 mm charger accept?

It accepts 100-240 V at 50-60 Hz, drawing 1.8 A maximum from the mains.

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