This article [macrumors.com]
popped up on my newsfeed, and I thought it would be a good service announcement to replace your risky battery for free and to protect yourself from unforeseen injuries as well. Of course, if you do not own one, please disregard this post.
The following quote is taken from Apple's announcement:
Apple has determined that, in a limited number of older generation 15-inch MacBook Pro units, the battery may overheat and pose a fire safety risk. Affected units were sold primarily between September 2015 and February 2017 and product eligibility is determined by the product serial number.
Customer safety is always Apple's top priority, and we have voluntarily decided to replace affected batteries, free of charge.
2015 15-inch MacBook Pro Battery Recall Program [apple.com]