My Dell inpiration 5577 always suddenly shut down like suddenly out of electric(but my battery is fine i think)，and after that， i turn on the laptop，it would shutdown again and startup ，then
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![How to Fix CMOS Battery Failure in [2022]](https://10scopes.com/wp-content/uploads/2021/12/fix-cmos-battery-failure.jpg "How to Fix CMOS Battery Failure in [2022]")
How to Fix CMOS Battery Failure in [2022]
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![How to Fix CMOS Battery Failure in [2022]](https://10scopes.com/wp-content/uploads/2021/12/windows-cmos-bad.jpg "How to Fix CMOS Battery Failure in [2022]")
How to Fix CMOS Battery Failure in [2022]
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