Which power supply best for HP COMPAQ Business Notebook 6910p?

Match your power brick by looking at the Watts.  3 power adaptors are for the Different sized batteries that you can purchase.  The largest Battery 9 cell or 12 cell would get the biggest WATT AC Brick 100WATT etc   The Smaller 4 cell or 6 cell gets the Smallest Power Brick  60WATT. Look into your battery Size - Number of Cells etc  and Power brick Watts  it should also tell you the Voltage 19Volts must match also. HP COMPAQ Business Notebook 6910p Part Number - 463553-002, PPP012H-S AC Smart power adapter (90-watt) - 100-240VAC input, 50-60Hz, 1.5A - 19VDC ouput, 4.74A - Requires separate 3-wire power cord with C5 connector - Does NOT include dongle for use with older, non-Smart compatible notebook PC's The power adapter is guaranteed to work with your HP COMPAQ Business Notebook 6910p laptop when you see your adapter's OEM part number (printed on the adapter label) or laptop model number in our compatible list. The list might be incomplete because it is difficult to collect all information at one time.  This is a HP COMPAQ Business Notebook 6910p Wall Charger(House Charger) - Make sure the correct polarity to be used with your HP COMPAQ Business Notebook 6910p Laptop AC Adapter, as false polarity can damage your computer. Please adjust the polarity on the detachable connector to suit your own computer.   Adapter is UL And International Safety Organization Approved To Ensure That The Design And Construction Meet Safety Standards. Not All Aftermarket Adapters Are Safety Approved! See more details, please click here

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