Leaving a Li-ion battery continuously charging near 100% charge is not good for the long-term lifespan of the Li-ion battery. In the future, it would be better to pick a partial charge range with the average state of charge somewhere around 50%, say 30% to 70%. I’ve made numerous posts on the forum about this (including quite a few earlier in this thread!). It’s often not very practical since owners usually find it easiest just to charge their devices to 100%, use the charge until the battery is very run-down before recharging again and OEM’s love selling you new devices. Some manufacturers like Apple are very conscientious about helping the user get maximum battery lifespan and have excellent battery care advice on their support websites. Hopefully someday even devices like cell phones and hearing aids and their accessories will have the battery management smarts they put into electric vehicles, where a single battery can cost around $20,000. (price coming down and energy density, vehicle range going up - GM just in the news about this). https://forum.hearingtracker.com/t/about-battery-health-management-in-mac-notebooks/52107/5?u=jim_lewis and earlier in this thread: What is the expected battery lifetime of Phonak Roger Select? - #26 by jim_lewis