I do this too, but for me it works really well. my 4 year old iphone 4 got 3 days on a single charge when I got rid of it. My year old 6 still gets 2-2.5 days

I do this too, but for me it works really well. my 4 year old iphone 4 got 3 days on a single charge when I got rid of it. My year old 6 still gets 2-2.5 days per charge.