Iphone 6 incorrect battery reading
Hi, after the last software update my phone has started behaving funny. It sometimes tells me the battery charge is very low, while it can still last for a long time (signalling that the reported charge level is incorrect). This never happened before.
Also, looking at the battery in the setting menu, one can see that the battery charge suddenly drops to 1% and stays like that for hours. Restarting the device brings the reading up, but then it drops again. See below for screenshots. I would be glad if you could help me fix this issue. Thanks.
iPhone 6s, iOS 12