I've been manually trying to manage my Ego power tool batteries this way, but it would be really nice to be able to tell them to not charge above 80% or run bel

I've been manually trying to manage my Ego power tool batteries this way, but it would be really nice to be able to tell them to not charge above 80% or run below 20%, and not have to think about it. The $300-$400 batteries are worth protecting. My first Ego 5AH battery only lasted 4 years of mowing, which doesn't seem like a lot.