So I just installed a new battery on my iPhone 6 was scared going in but it was a success. I didnt even have to remove the display. Its showing 0 cycle count and a full charge capacity in CoconutBattery. Got just one question should I drain the battery all the way down to nothing to do some kind of calibration? Or do I just charge to 100%? It's at 42 percent out the box. Thanks!!