Not sure if this is right section but please move if not. I have an iPhone SE, all hunky dory so far, however over the last couple of weeks battery life has taken a dive, going from full to less than 40% by early afternoon, I don't use it to surf or do loads of messages/calls. The mobile data is switched off as is bluetooth, wi-fi and location services so what is causing the drain? battery health indicates 87%. If this doesn't change I can see myself getting a new SE, but 2nd question, can I still use the apps on this if the sim card is in a new phone? Any thoughts appreciated. CheersJohn B