The laptop restarts itself multiple times before booting

I have an old laptop that I boot maybe once a month or more and when I do,the battery is completely drained
When it actually boots(after few resets)and I charge the battery and then turn it off,that restart does not happen.
Does this mean that the bios battery is completely drained and it cannot hold the bios settings

It's almost 8 years old laptop but I never use it without the charger(I used the laptop as a desktop pc)
The date is also wrong

vsub said:

The date is also wrong

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Usually a sign the cmos battery needs to be replaced.