Chosen Solution
If I replace my iPhone 6s Plus battery will the system read it accurately? ie Battery health, no of charges, Maximum capacity etc? I replaced it with a less reliable battery (foolish) which is not really recognised by the phone as being legit.
Some aftermarket batteries do not support the battery health feature in iOS. To have one that does, another battery would have to be put in either one that is original or a higher quality replacement battery. If the battery is holding it’s charge fine I wouldn’t worry about it.
