Battery percentage refers to the amount of power left in a battery. It tells you how much energy is remaining, usually displayed as a number from 0 to 100%. Full definition
The ability to see battery percentage in Bluetooth settings will certainly be useful. (neowin.net)
With Battery, users can follow the current battery percentage on their Android device. (heavy.com)
While there aren't any major changes, the incremental upgrade provides a handful of menu tweaks and adds a Bluetooth battery percentage indicator. (androidauthority.com)