The battery API has been in the news before: https://www.theguardian.com/technology/2016/nov/01/firefox-disable-battery-status-api-tracking https://www.theguar

The battery API has been in the news before: https://www.theguardian.com/technology/2016/nov/01/firefox-disable-battery-status-api-tracking https://www.theguardian.com/technology/2016/nov/01/firefox-d...