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The main benefit is that you will have a backup power source for your computer if the main power goes out. And if you were working on a document or spreadsheet, you won't lose the work you did because you were unable to save the file before the power went out.

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10y ago
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8y ago

The backup battery is used to store BIOS/EFI firmware information and as well as maintain the system clock.

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9y ago

In most computers, the battery keeps the clock operating and preserves certain settings in RAM.

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Q: What are the benefits of having a computer backup battery?
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