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Hi, my iPhone 6s has the following Problem: When I am e.g. watching YouTube Videos, the Battery lasts for a couple of hours, just as expected. But when I am just swiping around on the Home Screen, it looses its Capacity very fast (around 1% every 15 Seconds). After rebooting/resetting the iPhone, the Capacity was higher again. The Battery health is at 85%, according to the iPhone, but on iMazing (PC) it always jumps between 50% and 80% for some reason. I already tried reinstalling iOS and to calibrate the Battery: Both things didnt work. The Battery is an Original. What should I do now? Should I replace the Battery? Or maybe it isnt even the Batteries fault. Can it be the Logic Board as well? I hope you can help me.
In my experience the iOs battery tool is usually slightly optimistic compared to other independent tools. Of course, not being into the battery it’s hard to say who’s right and who’s wrong, however, considering the issues you’re having I’d be inclined to think it’s time for a replacement, a new battery is probably all you need.