Having problems with your Acer Aspire 5040-3810 Notebook ?

Batter AC constant switch back nd forth

\015 The power switches back nd forth between battery and ac...alarm goes on and off and screen switches s well. Can not run unless the battery is in the bay. Attempted ac only no go.\015

Answers :

Several possible causes -- bad power supply (AC adapter, bad battery, bad connection to AC adapter, bad connection to battery - or both.
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