I have a Lenovo Yoga Pro 2, it's got an app that manages this for me. I turn on "conservation mode" and it keeps the charge at 55%-60%. The only negative here (

I have a Lenovo Yoga Pro 2, it's got an app that manages this for me. I turn on "conservation mode" and it keeps the charge at 55%-60%. The only negative here (and it would be there with doing it yourself) is that if I run out without the charger I'm essentially at 1/2 capacity.