i have a Lenovo edge 15 running BT5R3 KDE 64 bit. under windows 7 i get 5-6hrs of bat life. under BT i get less than an hour. i only found this post as i was trying to get info on how to have a battery status icon. my only warning is a power devil popup notice stating battery level is critical as it starts to immediately sleep. there is no other warning or advanced notice. its very annoying as there isn't enough notice to plug power in.
i used to be fairly profecient in SCO/BSD and slackware but that was 10 years ago.. now i cant find s#!+..