@revampd, Good info and I agree with your findings 100% just based on my own personal use over the years. My pattern is this: I have a charger at work,car,home office, bedside, kitchen. I'm never far from one and plug it in alot(as needed) with overnite charges at the bedside. Occasionally it drops to 10 or 20% before I plug it in. I've never had to replace a lith-ion battery yet. I charge when I feel it needs it to suit my usage needs.(thats anywhere from 10 to 90% I'll plug it in). Thanks for your posts.