iPhone 5s battery draining very fast
I am working on a 5s that drains battery REALLY fast. I have tried 2 batteries. If I charge it with a wall charger to 100% it will drain within a few hours all the way to 0 without doing anything.
I also had it connected and charging on the computer for a few minutes and it manage to drain down to 0 while it was plugged in!
What could be causing this?
Is this a good question?