battery api

  1. BadB

    Battery API Is Dead — Long Live Charging State Inference via CSS Media Queries

    How modern websites use @media (prefers-reduced-motion) and other media queries to indirectly determine device state Introduction: The Death of Direct APIs—The Birth of Indirect Intelligence Websites used to use the Battery Status API to find out whether your device was charging or running on...
  2. BadB

    Battery API: Myth or Real Signal? Why Do Modern Browsers Still Allow It?

    Analysis of the Battery Status API's relevance as a fingerprinting component in 2026 Introduction: A Ghost from the Past You're setting up a profile in Dolphin Anti. You see the Battery API in the list of fingerprint components. You think, "That's a deprecated API — it was disabled a long time...
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