For Li-Ion batteries, which I think are the norm, they're wrong, & that course is about the worst for your battery life. Deep discharging once a month or so ca

For Li-Ion batteries, which I think are the norm, they're wrong, & that course is about the worst for your battery life. Deep discharging once a month or so can be helpful, but, say, every day or two, is not. Charging halfway counts as half a charge, so lots of small charges is much gentler than many big charges. See http://www.batteryuniversity.com/partone-14A.htm http://www.batteryuniversity.com/partone-14A.htm