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Compaq Presario 1800 Power Adapter
When choosing a new AC charger, selecting the Compaq OEM charger will probably be the safest way to go. Because Compaq has been known to use a single AC adapter that powers multiple other machines, be certain to thoroughly note the part number that is needed for this model. A universal AC adapter can be used if you absolutely need to. The Compaq Presario 1800 power adapter is responsible for two things, to charge any and all batteries and to provide a source of power for the unit. If your decision is to purchase a different brand charger, make note of the output of amps and voltage.
Some warnings your AC adapter is going out
- Most Compaq AC adapters can get quite warm when plugged in for any length of time
- The unit will not operate without the battery installed
- Your Compaq battery refuses to charge all the time
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