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Since installation of iso 14.1 and 14.2 I can watch my battery drain visibly by the minute. I have to charge it three times a day and it even drain when it’s not in use. so what’s causing the drain. I have turned off all automatic updates on all apps i have turned off Siri on all apps i have turned off background processing on all apps i checked with my isp as my data disappeared 100gb in the three days I had it installed. they told me it was iTunes that was using all my data followed by safari. Shall I delete iTunes ? But if I do that what’s the point of having an Apple device? I I was advised to switch off wifi support in the data settings as it does a 85mb check each time it checks to see if it should be using wifi or mobile data. I have now switched my data off completely. So again i ask what’s the point of paying for an Apple device if you can’t use your data plan? ok so now with no data activated I only have the battery drain to deal with so with nothing running and all the obvious switched off what’s causing it. There is obviously a service running the is very expensive of the battery. do you have an answer and if so is there a way for me to switch the service off.