Apple just announced a battery replacement program for certain 13 inch MacBook Pro’s (non touch bar) manufactured between October 2016 and October 2017.

From Apple:

Apple has determined that, in a limited number of 13-inch MacBook Pro (non Touch Bar) units, a component may fail causing the built-in battery to expand. This is not a safety issue and Apple will replace eligible batteries, free of charge. Affected units were manufactured between October 2016 and October 2017 and eligibility is determined by the product serial number.

You can see if your laptop is affected here. All managed services customers of JM Addington and Kairos Dynamic Digital Managed Services have already had their serial numbers run across the the program by JM Addington staff.

Find more reporting by Ars Technica here.