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Do You Need A 65W or 90W Laptop Adapter?

Quite often a Laptop Adapter may come in two different power ratings. The tip that plugs into your laptop will be exactly the same but the power output can be different. This different power rating is more often than not either 65W or 90W. Generally, this difference will be noted on the label of your original power supply. If you look closely it will tell you. If not, it may state the volts and amps. These figures can be multiplied to give you the Wattage.

For instance a HP DV5-1050ER Laptop Charger may have 65W of power whereas a HP DV5-1132LA Adapter will be 90W of power. As you can see, these two different models of DV5 laptop are from the same range but the power supply can be different. It may be that some of the components in the former require extra power to run them. A 90W power supply in a 65W machine will be fine as the charger would only draw the power it needs, but using a 65W power supply when you really need a 90W will burn the adapter out very quickly.

This entry was posted on Saturday, November 26th, 2011 at 6:05 pm. You can follow any responses to this entry through the RSS feed.

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