Battery issue with 5s

[didgmd]

my 5s's battery life has been good for the past year, but recently it can't last as before. This morning, it suddenly dropped from 21% to 3%, then as soon as I plugged the charge in, it shows 17%. Anyone have the same issue?

 

[XTheLancerX]

Maybe your 5S could use some calibration, run the phone from 100% to dead, and back to 100% without using it while it charges. Try doing this a couple times even, and if it doesn't help, set up a Genius Bar appointment.

 

[didgmd]

Maybe your 5S could use some calibration, run the phone from 100% to dead, and back to 100% without using it while it charges. Try doing this a couple times even, and if it doesn't help, set up a Genius Bar appointment.

Thanks for the reply. I'll try it from now.

 

[adamhenry]

No battery issues here. My 5S still has good battery life.