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The prevailing advice seems to be to let the iPhone deep-discharge a few times a year in order to promote a longer lifespan (not a longer single use charge). That's one question I haven't settled in my mind yet, but the main point of my post is this:
Can iPhone battery utility apps control a 3-stage charging cycle of an iPhone battery, and if so, would that kind of charging strategy be effective in extending the overall life span of an iPhone battery? Apparently the idea is that a 3-stage charging cycle can be used to do a full charge when the battery's charge gets very low. For lead-acid batteries in vehicles, a smart charger does a fast charge at a high voltage to clean the plates, a middle voltage charge to get to 100%, and then a lower voltage maintenance voltage trickel charge. How (or does) a 3-stage charging cycle work on iPhone batteries?
Can iPhone battery utility apps control a 3-stage charging cycle of an iPhone battery, and if so, would that kind of charging strategy be effective in extending the overall life span of an iPhone battery? Apparently the idea is that a 3-stage charging cycle can be used to do a full charge when the battery's charge gets very low. For lead-acid batteries in vehicles, a smart charger does a fast charge at a high voltage to clean the plates, a middle voltage charge to get to 100%, and then a lower voltage maintenance voltage trickel charge. How (or does) a 3-stage charging cycle work on iPhone batteries?