Battery levels are exposed in the Battery Status API [1] which is currently implemented on Firefox and Chrome, both desktop and Android editions [2] but not on

Battery levels are exposed in the Battery Status API [1] which is currently implemented on Firefox and Chrome, both desktop and Android editions [2] but not on iOS. 1. https://developer.mozilla.org/en/docs/Web/API/Battery_Status_API https://developer.mozilla.org/en/docs/Web/API/Battery_Status... 2. http://caniuse.com/#search=battery http://caniuse.com/#search=battery