The battery life on the #Nexus6
is good enough to last all day with light usage, but I've learned to time certain activities (eg, gaming, vr, videos, etc.) around the quick charger. With quick charging, battery life doesn't really matter any longer since the phone charges within 15-30 min for another 12+ hours. I try to avoid running battery down below 15% and typically charge it to seeing 90%.
This article provides good advice for optimal battery longevity. I like the "running" analogy."Use your battery. Not too much. Mostly for small apps."
Also, beware of wireless chargers that heat up the device.