<ul><li>Facebook apps are said to have a secret function of draining a user's smartphone battery. This is allegedly done for the purpose of testing app features and image loading.</li><li>The process of intentionally reducing battery life is referred to as "negative testing."</li><li>George Hayward, a former Facebook employee and data scientist, has claimed that he was terminated from the company for refusing to participate in such negative testing practices.</li></ul>

Facebook drains users' batteries on purpose: Meta's ex-employee

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