I have an iPhone 5s that is only about 2 years old & I just replaced the battery but it will not stay charged. I will charge to 100%, close all apps, and do nothing with it but it will still drain at least 10% per hour. I have bluetooth & auto update off. I have restored the phone to wipe it clean, but nothing is working. If I use any app at all, the battery is gone within 4-5 hours. Again, this is a BRAND NEW BATTERY. Any suggestions?