Contact the Manufacturer for a Warranty Claim/Advice.
The info below should be useful for you:
DESCRIPTION
If connecting a Smart AC power adapter with a lower power rating than required by the notebook, the Smart Feature of the notebook will display one of the following popup messages from the System Tray:
Message # 1
For full performance, connect a higher capacity AC adapter
Message # 2
Smart AC adapter power output is too low for this computer
SCOPE
The specific notebook PCs affected by this feature are listed in the Hardware Platforms Affected section at the bottom of this advisory.
RESOLUTION
This message occurs as part of the Smart communication feature between the power supply and HP notebook PCs and docking stations. The AC Adapter has notified the system of the power capacity of the attached power supply.
Cheers.
Mick Murphy - Microsoft Partner