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Acer Aspire 7420 Power Adapter
Due to the fact that one Acer adapter can be used on other units, be certain to thoroughly note the part number that is needed for this model. When purchasing a replacement AC charger, selecting the Acer OEM charger will probably be the safest way to go. A universal AC adapter can be used if yours is unavailable or backordered. If you decide to buy an non-Acer adapter, it is imperative to note both the volts and amps outputs. The Acer Aspire 7420 AC adapter is responsible for two things, to charge up the main battery while simultaneously providing power for the laptop.
Simple signals your laptop charger is in dire straights
- The unit will not operate while solely using the AC adapter
- Your Acer battery refuses to charge up completely
- Most Acer adapters get warm when plugged in for any length of time
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