This isn’t true of lithium ion batteries. Google “calendar aging lithium ion.”Keeping something plugged in is fine, and better for the battery. The charging system will do the pause when full. If/when the battery needs a top up, it can do that whenever’s appropriate.
Generally what kills a battery is how many full cycles it’s gone through. And overheating/freezing.
To add to it: the best battery preserving technique proved to be charge to 50% and shut off the device. Then store in a cool, dry, dark environment basically how we receive our iphones from factory.Good battery charging habits according to the tech battery experts is to not charge the battery over 80%. It’s also a good practice not to let it drop below 20%. Once you go past 80%, it stresses the battery and creates heat inside the battery. Heat and stress are bad for lithium batteries.
That said, if your battery does go bad you can get it easily replaced with Apple or at any Best Buy.
That is true. If you plan on storing a device long term (weeks or months), it is best to charge up to 50% and turn it off.To add to it: the best battery preserving technique proved to be charge to 50% and shut off the device. Then store in a cool, dry, dark environment basically how we receive our iphones from factory.
So yeah, not using is the best preserving. Otherwise, with current speed one can upgrade every 2 years or replace battery for $ at apple for cheap.