The Battery Status API lets websites know information about your device’s battery - like how full the battery is, whether it’s charging, or how long until it runs out or is fully charged. Websites and web apps can use this to adjust their behavior: for example, they might reduce animations or background updates to save your battery life.
Although the Battery Status API is meant to improve user experience, it can unintentionally help track users. For example, the exact battery level and charging time may be unique, and scripts across multiple websites can recognize the same device in a short time span. This creates a temporary way to link user activity - even in private browsing or after clearing cookies.
Kameleo is designed to mask all forms of fingerprinting, including battery-based tracking. Kameleo’s general approach is to minimize or spoof any hardware data that could leak identifying information.
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