i have the percentage of my battery life turned on and i know it just an estimation but recently it has been significantly off. i play a lot of games on my phone so i charge most every night but i noticed recently it will give me the warning of 20% battery remaining even when im not using it and then it will die about 1 min later. it used to get all the way down to 5% before it would die and sometimes it still does. yesterday it went down too 4% an stayed there for 3 hours. if there is a way to fix this i would like to know it because i need to know when i need to charge my phone. if anyone has any ideas let me know please.