I make sure to always keep it on sleep mode whenever I'm not using it. I charge it almost every night. Will this deteriorate the overall lifespan of the battery? And if so, how much of a difference are we talking about? Like a week's worth of use? A month? A couple months? I try to drain the battery to lower than 15 to 20 percent of it's battery life to exercise it's full capacity every couple weeks. Any input on the matter would be much appreciated. Thanks for your time.