Please rest assured that this is normal, because Lenovo's machines must have professional engineers to test their systems and activate the batteries when they leave the factory, and notebooks should also have time to use them.
If you have any questions, please call the Lenovo service hotline or go directly to the local Lenovo service station for consultation.
The following is the inquiry link provided by Lenovo service hotline for you:
Hotline inquiry
The following are the query links provided by Lenovo service outlets:
Service station address inquiry
To determine more questions, you can consult Lenovo Intelligent Robot:
/Lenovo
If you don't solve your problem, you can spit out your valuable opinions and then ask for manual service.
I look forward to your satisfactory evaluation, thank you for your support to Lenovo, and wish you a happy life!