Yes my Samsung Serie 7 (now Ativ Book 8 I think) has the same feature (stops charging at 80%) and I think my previous Sony Vaio also had something like that..

Yes my Samsung Serie 7 (now Ativ Book 8 I think) has the same feature (stops charging at 80%) and I think my previous Sony Vaio also had something like that.. I use it on my Samsung given that I don't really need +5 hours without plugging anyway.