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No Sew SK90A195231 45W 19.5V 2.31A Blue Tip AC Adapter
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
- CompatibilityLaptops
- Battery Voltage20V
- AC Adapter Voltage20V
- AC Adapter Current11.8A
- AC Adapter Output Power85W
- FeaturesTravel, 3-Pin, Corded Electric, 0, type_a_2pin_na, 19.5 volt
- 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.
Highlights
- 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
Specifications
| Model | SK90A195231 |
|---|---|
| Part Number | SK90A195231 |
| Compatibility | Laptops |
| Battery Voltage | 20V |
| AC Adapter Voltage | 20V |
| AC Adapter Current | 11.8A |
| AC Adapter Output Power | 85W |
| Features | Travel, 3-Pin, Corded Electric, 0, type_a_2pin_na, 19.5 volts, 2.31 amps |
| Weight | 0.272 kilograms |
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.
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