Hi, I recently bought an iPhone XR and my battery goes down about 5% overnight and I do not know why. The Screen On and Off usage time is at 0 minutes, I turn off background app refresh, I put on Do Not Disturb overnight yet it still goes down quite a bit. My battery health is at 100%. What could it possibly be? I already tried contacting Apple Support but they couldn't really help. They just directed me to the battery health page which I already read before... I attached a picture of my battery usage. As you can see nothing in use.