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Acer TravelMate 7720 Power Adapter
Because Acer has been known to use a single AC adapter that powers multiple other machines, be sure you choose the right one. The Acer TravelMate 7720 AC adapter is responsible for two things, to charge the onboard battery and powering the laptop. A universal AC adapter is another possibility if you are desperate. If your decision is to purchase a different brand charger, please check on both the voltage and amperage output. When choosing a new charger, choosing the Acer brand one is the best one to choose.
What are the signs that the AC adapter is crapping out?
- Battery does not charge at all
- Most Acer AC adapters get warm when they are plugged in for a period of time
- The unit will not function while just using AC power
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