If I may be permitted to nitpick a bit: it would be a Good Thing to distinguish between C (the temperature) and C (the battery parameter). It can get a bit confusing to see things like "25C at 14C".
For those who may not know, to enter the degree symbol (°), hold down the <ALT> key and type 0176 on the numeric keypad.
So we get: 25°C at 14C. Or is it 25C at 14°C?
I'm following all this good stuff with interest. Thanks, guys. I hope to be able to make some kind of useful contribution, in due course.