Apple has recalled some 15-inch Macbook Pro laptops sold between September 2015 and February 2017. While not all devices are affected, you can see if your child’s device is included by checking the serial numbers listed here: https://support.apple.com/15-inch-macbook-pro-battery-recall

Or see the full story here: https://www.communitynews.com.au/western-suburbs-weekly/news/apple-announces-laptop-recall/