I believe products already do this. A good few years ago I was asked by a guy why his plugged-in HP laptop was telling him it “wasn’t charging”. I looked up the

I believe products already do this. A good few years ago I was asked by a guy why his plugged-in HP laptop was telling him it “wasn’t charging”. I looked up the docs and discovered that between 95-100% it would turn on/off the charging as required. I’ve heard separately (no source, sorry [edit: see below]) that Apple products also do this, they just don’t confuse the user by telling them that it’s happening. I wouldn’t be surprised if HP et. al. have since changed their user notification behaviour, too. Source: forum posts going back almost a decade. https://www.google.com.au/search?q=apple+laptop+stops+charging+95%25&ie=UTF-8&oe=UTF-8&hl=en-au&client=safari https://www.google.com.au/search?q=apple+laptop+stops+chargi...