Usually that just means it lets the charge level drop to ~98% or something before topping it off again which I'm sure they do but having doing anything with a l

Usually that just means it lets the charge level drop to ~98% or something before topping it off again which I'm sure they do but having doing anything with a lipo slowly kills it to some degree including simply being near high and low states of charge so it's no silver bullet. What they would need to do is detect when the port has been has been connected regularly for days and let the charge level drop to some announcement proportionate to the frequency and duration.