Battery issue with 5s

didgmd

macrumors newbie
Original poster
May 31, 2014
22
9
Seoul
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

macrumors 68000
Aug 20, 2014
1,908
782
NY, USA
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

macrumors newbie
Original poster
May 31, 2014
22
9
Seoul
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. :)
 
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