The very common and normal characteristics of any kind of battery is it degrade with use over time. They loose their ability to hold full charge. Apple’s batteries are rated to hold 80% of their capacity for up to 500 charge cycles, which lasts roughly 18-24 months for most Apple users. So it is very common matter of all iPhone.
But Some of our clients says that they are not getting more than three hours battery backup. And obviously which is very unusual. The question is Why ??
Its been more then 14 years. iCare Apple Deals with this common Battery issues. After investigating thousands of Clients issues, we found most of these unusual problems occurs from using unauthorized charger or using any typical Chinese normal mobile charger. So stop using any unauthorized charger. It may cause your iPhone run more slowly.
If you are already facing these unusual Problems. Then just bring it to our iCare Apple and replace your Battery immediately.