macbook pro battery is charging but not incresing percentage

For Intel-based Macs:

Try suggestions given in this article.

https://support.apple.com/guide/mac-help/if-your-battery-wont-charge-mh29198/11.0/mac/11.0

Contact Apple Care.

Every Mac comes with one year of hardware repair coverage through its limited warranty 

and up to 90 days of complimentary technical support. 

• By calling 800-275-2273 (requires you to run a remote diagnostic and provide proof of purchase)
  • U.S. technical support: (800) APL–CARE (800–275–2273)

https://www.apple.com/support/products/mac/

or

Click inside the box to choose an option.

 https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362