It seems that as the days get shorter and colder I am only flying for 10 mins a day, thus I am done when my batteries are only 50% discharged.  With the inteligent battery do I need to be worried about this, should I discharge the battery to 10% before charging or just let the battery look after its self.

I like to at least set off with a full battery, because you never know I might need to fly a little longer.

The batteries are good at 50%.  Just charge them fully before flying.