AC adapter HP 45W SPS-45W ADPTR NPFC SMART RC (model 741727-001B) for HP laptops

AC adapter HP 45W SPS-45W ADPTR NPFC SMART RC (model 741727-001B) is a compact external power supply designed for compatible HP laptops. It delivers a stable 45-watt DC output to charge batteries and power the laptop during use. The adapter incorporates smart NPFC functionality to communicate power status and authentication signals with the host device, offering reliable power delivery as a replacement or spare unit for everyday mobile and travel needs.

Advantages

The adapter provides consistent power output and built-in protection against common electrical issues such as overcurrent and short circuits. Its compact form factor and lightweight build make it convenient for carrying in a laptop bag. NPFC smart communication enables the adapter to interact with the laptop for accurate power management and battery charging. The design is intended for straightforward replacement of original equipment while maintaining compatibility with supported HP notebook models.

Suitable for

• Charging compatible HP laptops and powering them during operation
• Use as a replacement or spare adapter for travel and remote work
• On-the-go professionals who need a compact, lightweight power supply
• Home or office use where a secondary adapter is required

Key specifications

• Output power: 45 W
• Output type: DC suitable for HP notebook power input
• Smart functionality: NPFC communication with host for power management
• Form factor: compact external AC adapter
• Protection features: overcurrent and short-circuit protection

How to use

Connect the AC adapter to a compatible AC mains outlet using the supplied cable or integrated plug, then attach the DC connector to the laptop’s power input jack until it seats securely. Ensure the laptop recognizes the adapter via NPFC communication; the device should indicate charging or AC power status. Avoid pulling the cable when disconnecting — hold the connector and remove it gently. Use the adapter on stable surfaces and avoid exposing it to liquids or extreme temperatures.

Recommendations

For reliable operation, use the adapter with HP notebooks that specify a 45 W external power source and support NPFC communication. Inspect the cable and connector regularly for wear, and replace the adapter if any damage is visible. Store the adapter in a cool, dry place when not in use and avoid coiling the cable too tightly to prolong service life.