Battery Charging and 80%/40% Rule

I’ve read several times about ideally charging your batter once its gets no lower than 40% up to 80%, so that is stays generally healthy. With the technology in chargers now, where they wont damage your battery if you leave it plugged in, is it now ok to charge the battery up to near 100% and let it roll for the day? I know the 80% rule generally keeps it healthy because it doesnt cause a "full charge" to be registered but is this really still necessary today to keep your battery in good shape?

thanks in advance.


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