If an HP notebook has stopped charging, the first step is to match the replacement adapter to the specifications on the original power supply—not just choose a charger that fits the socket. The HP TPN-LA04 / PA-1450-63HP adapter is rated at 45W, with a 19.5V DC output at 2.31A and a 4.5mm × 3.0mm blue-tip barrel connector with a center Smart Pin. It is intended for compatible HP notebooks that require these specifications, helping restore power when an existing adapter is missing, damaged, or no longer working reliably.
Before ordering, compare the adapter model or part number, output rating, and connector with your existing power supply. HP notebook families can use different adapters across generations and configurations, so a matching brand name or a plug that appears to fit is not enough to guarantee compatibility.
Technical Specifications
| Brand Compatibility | HP |
| Adapter Model | PA-1450-63HP |
| Model Identifier | TPN-LA04 |
| Product Type | Laptop AC Power Adapter |
| Input Voltage | 100–240V AC |
| Input Frequency | 50–60Hz |
| Output Voltage | 19.5V DC |
| Output Current | 2.31A |
| Output Power | 45W |
| Connector Size | 4.5mm × 3.0mm |
| Connector Type | Blue Tip Barrel Connector with Center Smart Pin |
| Product Classification | Compatible Replacement Power Adapter |
HP Adapter Part-Number Cross-Reference
The following adapter identifiers are commonly cross-referenced with this power adapter family. Confirm the number printed on your original adapter and verify the electrical specifications and connector before ordering.
- TPN-LA04
- PA-1450-63HP
- 853490-001
- 854116-850
These identifiers are provided to help with replacement-part matching. They do not establish compatibility with every HP notebook or imply that the replacement product is manufactured or authorized by HP.
Compatible Device Requirements
This replacement is intended for HP notebook configurations that require a 45W, 19.5V DC power adapter rated at 2.31A and use the 4.5mm × 3.0mm Blue Tip Smart Pin connector.
- HP ProBook notebooks with matching adapter specifications
- HP Pavilion x360 notebooks with matching adapter specifications
- HP ENVY notebooks with matching adapter specifications
Compatibility within these product families varies by generation and configuration. Check your laptop's complete product number and original adapter label before purchasing. Do not rely on the family name or connector appearance alone.
Replacement and Troubleshooting Guidance
A power adapter may need replacement if the laptop no longer charges, charging becomes intermittent, or the adapter cable or housing is visibly damaged. However, a faulty charging port, battery, or power circuit can produce similar symptoms. Confirm that the replacement adapter matches the laptop's requirements before attributing the problem to the power supply.
For a reliable replacement, match the output voltage, ensure the adapter can supply the required current and wattage, and verify the connector dimensions and center Smart Pin. A 45W adapter should not automatically replace a 65W or higher-rated adapter unless the laptop manufacturer permits that lower power rating for the particular configuration.
Frequently Asked Questions
Q1: How do I confirm that this adapter fits my HP notebook?
Check the original adapter for TPN-LA04, PA-1450-63HP, or a matching cross-reference number. Confirm the 19.5V output, the required power rating, and the 4.5mm × 3.0mm Blue Tip Smart Pin connector. Check your laptop's product number if the original adapter label is unavailable.
Q2: Can this adapter replace HP PA-1450-63HP?
It is listed as a compatible replacement for the PA-1450-63HP adapter family. Before ordering, verify that the original adapter's output specifications and connector match the details above.
Q3: Does this charger work with every HP ProBook, Pavilion x360, or ENVY laptop?
No. These families include different generations and hardware configurations. Compatibility should be confirmed against the exact laptop product number and its specified power adapter, rather than inferred from the series name alone.
Q4: Can a 45W adapter replace a 65W HP charger?
Not as a general rule. A laptop that requires 65W may need more power than this 45W adapter can supply. Use the specified wattage or another rating expressly supported by the laptop manufacturer, along with the correct voltage and connector.
Q5: Why might the laptop still fail to charge with a matching plug?
A physically fitting connector does not guarantee electrical compatibility. Recheck the voltage, current and wattage requirements, adapter identification, and connector type. If these match but charging still fails, the laptop's charging port, battery, or internal power circuitry may need inspection.
The HP TPN-LA04 / PA-1450-63HP is a 45W laptop AC power adapter rated at 19.5V DC and 2.31A, with a 4.5mm × 3.0mm Blue Tip Smart Pin connector for compatible HP notebooks. It is intended to replace a missing or faulty adapter when the laptop's power requirements match, and is cross-referenced with adapter identifiers 853490-001 and 854116-850. Verify the original adapter label and exact laptop specifications before purchase to avoid connector, voltage, or power-rating mismatches.
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- US warehouse fulfillment
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- Every adapter is inspected and tested before shipment
- 1-year warranty included
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For wholesale or bulk orders, please contact us directly at sales@oempowerus.com to receive our best large-order pricing. We are happy to work with you on volume discounts.
