Hi Patricia Candelario,
Thanks for reaching out to Microsoft Community and posting your inquiry.
To verify if it's a problem with the charger or the charging port, we suggest the following:
• Try a different Surface Charger and check if the issue is resolve.
• Clean the tip of the charger with a cloth, dirt might be blocking the connection.
• Try the current charger to a different Surface Device.
We recommend following the steps at What to do if your Surface power supply or charger doesn’t work and requesting service if needed.
Kind regards,
John Neil_J