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Compaq Presario CQ71 Power Adapter
Due to the fact that one Compaq adapter powers multiple other machines, be certain to thoroughly note the part number that is needed for this model. When purchasing a replacement AC adapter, the actual Compaq brand is always going to be the safest and easiest way to go. The Compaq Presario CQ71 power adapter provides two functions, charging the battery and powering the laptop. A universal AC adapter is a possibility if yours is unavailable or backordered. If you decide to buy an non-Compaq adapter, make sure to check both the voltage and amperage output.
Some clues of a deteriorating power adapter
- The unit will not work while just using AC power
- Battery does not charge up completely
- Most Compaq AC adapters get warm when they are plugged in for a period of time
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