Now You Can Upload High-Quality Video on Instagram [Know-how] 

Hi so the problem occurring is i m using iphone 5 (as a secondary device) on ios 10.3.4 with 99% battery health as checked on 3utools.. the problem is sometimes phone works perfectly fine other times i see a sudden drop example 80 to 60 in couple of minutes without usage If i am using the phone listening ti music it works fine Can you please help how can i fix this issue?