We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact black rectangular AC adapter with blue-tip barrel connector and detachable power cord

No Sew

No Sew SK90A195231 45W 19.5V 2.31A Blue Tip AC Adapter

SKU CH-X9JJ-J0VJC

A 45W HP-compatible charger with a 4.5x3.0mm Smart Blue Tip barrel connector, 19.5V 2.31A output, 100240V 50/60Hz input, and multi-protection safety

  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current11.8A
  • Power adapter wattage85 W
  • Compatible withLaptops
  • Key featuresTravel, 3-Pin, Corded Electric, 0, type a 2pin na, 19.5 V, 2
  • Smart blue-tip 4.5x3.0mm connector fits compatible HP laptops
  • Stable 45W output at 19.5V 2.31A for everyday charging
  • Multi-protection system guards against over-voltage, over-current, short-circuit, overheating
  • Lightweight 0.272 kg design packs easily for travel and commuting
  • Wide 100240V 50/60Hz input works worldwide with a plug adapter

What this adapter is and who it fits

This 45W AC adapter delivers 19.5V at 2.31A through a Smart Blue Tip 4.5x3.0mm barrel connector. It is built for HP laptops that charge via the blue-tip jack, including many Pavilion x360, Envy, EliteBook, ProBook, Chromebook, Spectre and Stream models. The unit accepts 100240V 50/60Hz input for worldwide use.

Who should buy it and who should not

Buyers replacing a lost or damaged blue-tip charger for a compatible HP notebook will find the correct plug and power rating. Users whose laptops charge only through USB-C ports cannot use this adapter. It also does not suit devices that require a different barrel size or a higher wattage than 45W.

Installation ease and common issues

Connection is straightforward: plug the AC cord into the adapter, insert the blue tip firmly into the laptop jack, and connect to a wall outlet. A loose or worn laptop port can cause intermittent charging, so ensure the connector seats fully. The adapter includes over-voltage, over-current, short-circuit and overheating protection for safer daily operation.

How it compares

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

Price $29.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Model nameSK90A195231
Part numberSK90A195231
Power
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current11.8A
Power adapter wattage85 W
Size & build
Product weight0.272 kg
Compatibility
Compatible withLaptops

Questions about this item

Does my HP laptop need the 4.5x3.0mm Smart Blue Tip barrel jack for this adapter to work?

Yes, the connector is a Smart Blue Tip 4.5x3.0mm barrel plug and is not for USB-C charging ports.

Will this 19.5V 2.31A adapter charge an older HP EliteBook 840 G3 that also uses the blue tip?

It is designed for HP laptops that charge via the blue-tip barrel jack, including many EliteBook 840 G3 models.

How can I confirm the adapter is delivering power after I connect it?

The laptop should show a charging indicator and the battery level will increase while the adapter is plugged in.

More in Laptop Chargers & Batteries

Similar items