Greetings, I was wondering what would be best since I'm a heavy user. Is it best to charge my phone 100% and recharge at night, when it's near death? Or is it best to change the phone twice or three, maybe even four times a day to keep it in the 40 to 80% zone? I plan on keeping the phone at least two years maybe three. My last phone was a Galaxy note 2, I'm careful with my phones but do use them quite a lot. The galaxy note 2 lasted about 18 months till I switched the battery, I wasn't careful with it battery wise however. So, what would be best? Right now im using slow charge a few times a day keeping it in the 40~80 zone. Ps; please, if you don't know what you're talking about don't reply. Facts only, no personal options without facts. I thank you for your time. Terry M.D. D.O Galaxy note 7. CANADA, BELL CANADA.