"Tha manual explains the process."
Don't take away my manhood. Manual?
Get in. Press buttons. Then cry "Oops".
Yes. The actual engagement of "cell balancing". Can take hours.
Which kind of negates the argument of "Don't charge above 80% or it will damage your cells. Oh, and also don't run out of juice. That will damage them as well"
I, always, home charge ..... when it needs it!! 4 hours on the octopus tariff, while I'm asleep, is fine. Only "long journeys" do I charge it up to 100%.
In other words, I treat it just like my beloved Galaxy diesel. Never ever filled that up. £20 in, max, unless longer trips. £20 was 140 miles.
Don't let charging bother you. You have a warranty on your battery. If it goes wrong, your dealer can spend the money charging and balancing.
You don't need 100% every time