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Compaq Armada 4120 Power Adapter
The Compaq Armada 4120 power adapter is needed for two reasons, to charge any and all batteries while simultaneously providing power for the laptop. If buying off-brand, please check on the output of amps and voltage. A universal AC adapter is another possibility but only if necessary. Because Compaq has been known to use a single AC adapter that powers multiple other machines, double-check the part number or model number of the adapter. Upon choosing a replacement charger, the actual Compaq brand is the best one to choose.
Major clues your AC adapter will need to be replaced
- The laptop does not operate using just the AC power adapter
- Most Compaq AC adapters will get warm to the touch when plugged in for any length of time
- Battery does not charge all the time
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