I have an iPhone SE that is not even 10 months old. When I check its battery condition in the Battery Health section in the iPhone's settings it says that the battery has 97% of its original capacity. However, when I check the battery condition with coconutBattery while it is connected to my Mac or with several battery apps on the iPhone itself it always says that the battery has only 80% of its original capacity. What might this mean? I could tolerate if one app tells me a different thing about the battery than Apple's own function but when three or four do it (and all with the same result) I am getting suspicious about Apple's result. Are there other people here who use battery apps and Apple's Battery Health and have similar descrepancies?