Hi Peepens,
Welcome to Sony Community!
We're sad to hear about this, does this issue happened even the laptop is plugged in? If so, then i strongly suggest that you bring the unit to an Authorized Repair Center to have them fix your device but if the device works while it's connected to the main outlet then check the status of the battery to know if it needs to be replaced.
I hope this helps.
Regards,
Jen
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