Shouldn't the charging controller in the laptop stop charging the battery once the battery is at full charge? It seems to me that a great many folks leave thei

Shouldn't the charging controller in the laptop stop charging the battery once the battery is at full charge? It seems to me that a great many folks leave their laptops plugged in for weeks or months at a time, and that this would be something that a laptop designer would account for. (Anecdata: The six-ish year old battery in my primary laptop still holds ~60% of its original maximum charge. This laptop spends the vast majority of its time on, with the battery installed, and plugged in to an AC outlet.)