Android devices are factory-set to hide the percentage indicator for battery charge level. To enable the battery percentage on Android you need to follow a few simple steps:
– press HOME button (the middle button )
– press MENU button (for Samsung Galaxy the left button and for LG Optimus the right button) and choose SYSTEM SETTINGS
– scroll down and select POWER SAVER
– go to BATTERY PERCENTAGE and check this option to display battery percentage on indicator (see image below)
After completing the steps above, your Android mobile phone will display the battery percentage on top, besides the battery level indicator.