Siri drain battery at night
Recently my IPhone’s battery drained from 60% to 1% at night. Upon checking the battery activity , I found out that Siri was active 60% of the time for the last 24
hours.
I turned off Siri, however the consumption during the night time is still the same. I read up the discussion and reset my iPhone to factory setting the next day. However the problem still persisted on.
Have no clue and did no exception for my apps or phone’s setting. Please help to advise.
iPhone XS, iOS 13