Having problems with your Acer Extensa 390CX Notebook ?

Unable to locate CMOS battery on mainboard

\015 Acer Extensa 390C gets "CMOS battery bad" error when booting. I opened case to see what the battery part # is but I'm unable to locate it. What does the battery for this model look like and exactly where is it on the m/b? (Note: Oddly, I get the same error after replacing the m/b w/ another.) \015

Answers :

If again usefull,look the picture5_21_2012_7_27_08_pm.jpg5_21_2012_7_30_00_pm.jpg
Not sure on your model laptop. The battery is usually a 3volt lithium button battery approx the size of a small coin.
\015\012The battery could be located on the bottom of the laptop under one of the scewed panels to one side of the opening or it may be under the keyboard.
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