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Black rectangular AC adapter with 4.5 by 3.0 mm round tip connector

2-Power SK90A195231 85W AC Adapter 4.5*3.0 mm

SKU CH-QP9D-X0HXV

85W laptop charger with 4.5×3.0 mm tip for Dell Inspiron, Latitude and XPS models

  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current3.42A
  • Power adapter wattage85 W
  • Compatible withLaptops
  • Key featuresShort Circuit Protection, Proprietary, Corded Electric, UL,
  • Delivers 85 W at 20 V / 3.42 A for reliable laptop charging
  • Round 4.5 mm × 3.0 mm connector fits many Dell models
  • Built-in short-circuit protection guards connected hardware
  • Wide 100–240 V input works worldwide
  • Weighs 0.57 lb for easy portability

Compatible Dell charger

The 2-Power SK90A195231 is an 85W AC adapter built for Dell laptops that use the 4.5 mm by 3.0 mm barrel connector. It delivers 19.5V at 3.42A and accepts a 100-240V input for worldwide use.

Protection and portability

Short-circuit protection guards the laptop and the adapter during a fault. The unit is corded and compact, making it easy to pack for travel or keep as a spare at a second desk.

For Dell owners with the round tip

Buyers who need a replacement for a Dell part such as D0KFY, JHJX0 or LA45NM131 will find the correct fit. Users whose laptops require a different connector size or a higher wattage rating should look at another model.

How it compares

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

Price $35.99
Pricier than about 64% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand name2-Power
Model nameSK90A195231
Part numberSK90A195231
Power
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current3.42A
Power adapter wattage85 W
Size & build
Product weight0.5709972585800001 lb (0.26 kg)
Compatibility
Compatible withLaptops

Questions about this item

Will the 4.5*3.0 mm connector tip wear out and need replacing?

The barrel connector is a standard 4.5 mm outer and 3.0 mm inner diameter; it is a passive metal tip with no moving parts, so it does not wear out under normal insertion cycles.

What limits continuous output when the adapter runs at 85 W?

The unit is rated for 20 V at 3.42 A (85 W) maximum; sustained loads at that level will hit the current limit first, triggering the built-in short-circuit protection.

How much heat and noise does the 85 W adapter produce during all-day use?

It is a sealed corded brick with no fan; at full 85 W load it warms to a typical external temperature but remains silent.

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