45W Laptop Charger for HP laptops with blue tip (19.5V 2.31A, 4.5mm x 3.0mm) – AC adapter power supply
Product description
What it is and what problem it solves
This 45W laptop charger is designed to replace or add a power adapter for a range of HP laptops that use a blue tip connector and require 19.5V at 2.31A (rated output up to 45W). In day-to-day terms, it’s the sort of accessory you buy when your original charger has gone missing, is worn out from travel, or you just want a spare so you’re not stuck near a single plug.
On paper, the main “make or break” details are the output rating (19.5V 2.31A / 45W) and the connector size (4.5mm x 3.0mm, blue tip). If those line up with what your HP device expects, this is a straightforward way to restore normal charging.
Key features at a glance
The charger accepts AC 100–240V, 50–60Hz input, and outputs 19.5V 2.31A via the blue tip connector (4.5mm x 3.0mm). It’s marketed as a 45W Natno upgrade charger, with multi-protection and safety certifications listed (CE-/FCC-/RoHS-Certified).
If you’re the sort of person who alternates between desk and sofa, or you commute and need something reliable for the bag, a spare charger like this can be genuinely useful. That said, there’s one obvious limitation: it only makes sense if your laptop’s charging requirements match the specified output and connector type.
Where it stands out (and where it may fall short)
What stands out most here is the specificity. It’s not pitched as a “universal” charger for every laptop, it’s aimed at compatible HP models that meet the 45W / 19.5V / 2.31A requirement and the blue tip connector.
At the same time, compatibility listings are always a bit of a minefield. The product description includes a long list of HP model names and part numbers, which helps, but it doesn’t remove the need to double-check what your own laptop needs. If your current charger has different voltage or a different connector type, this one may simply not be suitable (even if the wattage sounds “close”).
A practical way to think about it: this is best treated as a replacement for a known correct HP charger specification, rather than an all-purpose workaround.
Tech specs that matter before you buy
- Output: 19.5V 2.31A (up to 45W)
- Input: AC 100–240V, 50–60Hz
- Connector: blue tip, 4.5mm x 3.0mm
- Part numbers listed (examples): 740015-002, 741727-001, TPN-LA03, PA-1450-56HA, HSTNN-LA40
- Safety: multi-protection including over voltage and short circuit protection, CE-/FCC-/RoHS-Certified
Who it’s for (and who should be careful)
It makes sense if you own one of the HP laptop lines mentioned in the listing, particularly models in the 14s/15s/Pavilion/Spectre X360/Stream/Chromebook families that use the blue tip charging connector and require the stated 19.5V 2.31A output.
You may want to skip it if you’re not confident about your current charger’s output rating or connector size. Charging accessories are one of those purchases where small details really do matter, and getting them wrong can mean the adapter won’t work as expected.
Worth noting: the listing talks about “meeting the power requirements” of compatible HP laptops, but it can’t cover every edge case—so if your charger label differs from 19.5V 2.31A or the connector isn’t the blue tip, it’s better to verify first.
Everyday use tips
A simple test for peace of mind is to compare this adapter’s key label details against your existing charger (voltage, amperage, and the connector type). If you’re setting up a spare for travel, keep it in a separate pouch so the connector stays protected—those small tips are usually what get damaged first.
For example, if you work from a desk during the week and at home on weekends, you could leave one charger at work and take this one on personal days. That way, you’re not constantly moving cables around, and you’re less likely to end up with a half-working setup.
In the box
The product description refers to the laptop charger / AC adapter power supply with the blue tip connector. It doesn’t list extra accessories, so if you need anything beyond the charger itself, you’ll want to check the listing details.
FAQ
Is this charger actually 45W?
Yes, it’s described as a 45W charger with an output of 19.5V 2.31A.
What connector does it use?
It uses a blue tip connector with the size 4.5mm x 3.0mm.
Will it work with any HP laptop?
Not automatically. It’s listed as compatible with a range of HP models, but you should still confirm your laptop’s charging requirements match the 19.5V 2.31A output and the blue tip connector.
What safety protections are included?
The listing mentions multi-protection, including over voltage protection and short circuit protection, and states CE-/FCC-/RoHS-Certified.
Final verdict
This 45W Laptop Charger for HP laptops with the blue tip is a sensible buy if you’re replacing a charger you already know matches 19.5V 2.31A and the 4.5mm x 3.0mm blue tip connector. Where it becomes less appealing is if you’re buying “by guess” based on wattage or model name alone—charging specs need to line up.
So, if your goal is a dependable spare for daily use (desk, home, or commuting) and your device’s requirements match the ones listed, it should do the job. If your current adapter doesn’t share the same voltage/amperage or connector type, it’s probably a better idea to verify first rather than risk ending up with a charger that doesn’t fit your setup.