Credit: Edgar Cervantes / Android Authority

There’s no shortage of controversies when it comes to Facebook, from harvesting your personal data on smartphones to sharing data with unsavory third parties, and more. Now, the platform has been accused of being able to secretly kill your smartphone battery.

Former employee and data scientist George Hayward told the New York Post that Facebook can secretly drain your phone battery as part of so-called “negative testing” practices. Negative testing is a form of software testing that applies unexpected behaviors and circumstances to an app or software to see how it copes.