Owners of HP laptops may have reason to be concerned. A statement on the HP website is alerting HP laptop owners to the possibility that their batteries might catch fire:
The affected batteries were shipped with specific HP, Compaq, HP ProBook, HP Envy, Compaq Presario and HP Pavilion notebook computers sold worldwide from March 2013 through August 2015, and/or were sold as accessories or spares, or provided as replacements through support. These batteries have the potential to overheat, posing a fire and burn hazard to customers.
Because these batteries pose a fire and burn hazard, it is extremely important for customers to check whether their batteries are affected, and to cease use of affected batteries immediately. Customers may continue to use their notebook computer without the battery installed by connecting the notebook to external power.
The statement advises users to download a utility that will automatically check to see if you have one of the affected batches of batteries. Then it will advise you on what to do next. If you’re on the list of possibly affected laptops, I’d suggest that you do this right now for the safety of yourself and those around you.