I think my Macbook Pro is about 9 months old. Apple and others recommended that when you unplug, always let it drain down to the point of going to sleep/hiberna

I think my Macbook Pro is about 9 months old. Apple and others recommended that when you unplug, always let it drain down to the point of going to sleep/hibernate and never plug it in before. So far so good, 277 cycles and I have not noticed a single difference in battery life. I drain it at least a few times per week. Sometimes twice per day. I did not do this on my last Macbook Pro and Apple replaced the battery for me after about a year and a half because it couldn't even hold a 10 min charge and it had very few cycles, certainly not 277.