For best performance, use only the power adapter that
came with your HP notebook and configure your power management settings
for optimal performance based on your usage habits.
For detailed information about battery performance, refer to Improving Battery Performance (Windows 8, 7, Vista).
For detailed information about power management options, refer to
Managing Power Options (Windows 8), Managing Power Options (Windows 7
and Vista), or Power Management for Notebooks Running Windows 98, ME, XP
and 2000.
Most HP notebooks utilize smart power adapter
technology. They can use power adapters from other HP notebooks that may
have different wattage requirements.
If you use a power adapter that has a lower wattage
than your notebook requires, there may be some trade-offs. The CPU clock
rate may be reduced to save power, which may cause programs to run
slower, the battery may charge more slowly or not at all, or the power
adapter itself may become warm to the touch.
Your power adapter's wattage information is printed on the bottom of the adapter itself.
Figure : Power adapter - 65W
Figure : Power adapter - 120W
For detailed information about battery safety, refer to AC Adapter Makes
Hissing and/or Crackling Noise, and May Feel Warm to Touch.
For detailed information about verifying whether the power adapter is
working correctly, refer to Testing and Using the AC Power Adapter.