Product Introduction
When an HP laptop fails to charge properly, shuts down under load, or shows “plugged in but not charging”, the issue is often caused by a worn or incompatible power adapter. The HP L64042-001 90W AC adapter is designed to restore stable power delivery for HP notebooks requiring 19.5V 4.62A input, ensuring reliable performance for work, study, and daily computing.
Application Scenarios
- HP Pavilion laptop daily office and home usage
- HP Envy series performance workloads and multimedia tasks
- HP ProBook business environments and enterprise use
- HP EliteBook docking and workstation power supply
- Replacement power supply for damaged or aging original adapter
Technical Specifications
| Brand | HP / OEM Compatible |
| Model | L64042-001 |
| Output Voltage | 19.5V DC |
| Output Current | 4.62A |
| Power Rating | 90W |
| Connector Type | 4.5mm x 3.0mm Blue Tip (Smart Pin) |
| Input | 100–240V AC 50/60Hz |
| Polarity | Center Positive |
| Condition | Replacement Power Adapter |
OEM Replacement Compatibility
- HP L64042-001 / 710413-001 / 709986 series equivalents
- HP Pavilion 14 / 15 / 17 series (selected models)
- HP Envy 15 / Envy 17 series (selected models)
- HP ProBook 450 / 455 / 470 series (compatible variants)
- HP EliteBook 840 / 850 series (compatible power input models)
FAQ
Q1: Will this work with all HP laptops?
A: No. It only works with HP laptops that require 19.5V 90W input and a 4.5mm x 3.0mm Blue Tip connector.
Q2: What does Blue Tip mean?
A: It refers to HP Smart Pin technology, which allows the laptop to recognize correct power output and avoid charging errors.
Q3: Can I use a lower wattage charger instead?
A: It is not recommended. Lower wattage may cause slow charging, performance throttling, or unstable operation.
