I got fed up doing the calibration that I accepted the fact that my phone dies at 15% exactly the same time I get the low battery warning. I really don't find it worth my time to stress about the battery not shutting down at zero... I'm more concerned about finding out what is the most stable, the fastest and the most recommended ROM out there for my Desire. :/
LG Nexus 5, LG Nexus 4, HTC Desire
I feel oh so dirty flashing without wiping.