from Apple[1] the advice is: * Do not fully charge or fully discharge your device’s battery — charge it to around 50%. * Power down the device to avoid ad

from Apple[1] the advice is: * Do not fully charge or fully discharge your device’s battery — charge it to around 50%. * Power down the device to avoid additional battery use. * Place your device in a cool, moisture-free environment that’s less than 90° F (32° C). * If you plan to store your device for longer than six months, charge it to 50% every six months. So it seems to me that I should just use a calendar reminder after all. [0] https://www.apple.com/batteries/maximizing-performance/ https://www.apple.com/batteries/maximizing-performance/